| 302-200 | Lewes | Landline | Ymax Communications |
| 302-202 | Camden Wyoming | Landline | Onvoy |
| 302-203 | Wilmington | Wireless | Verizon |
| 302-204 | Millsboro | Landline | Onvoy |
| 302-205 | Bridgeville | Landline | Onvoy |
| 302-206 | Camden Wyoming | Landline | Onvoy |
| 302-207 | Dagsboro | Landline | Onvoy |
| 302-208 | Newark | Landline | Onvoy |
| 302-209 | Delmar | Landline | Onvoy |
| 302-212 | Rehoboth Beach | Wireless | New Cingular Wireless |
| 302-213 | Dover | Landline | Level 3 Communications |
| 302-214 | Felton | Landline | Onvoy |
| 302-216 | Frederica | Landline | Onvoy |
| 302-218 | Wilmington | Wireless | Sprint Spectrum |
| 302-220 | New Castle | Wireless | New Cingular Wireless |
| 302-221 | New Castle | Landline | Cavalier Telephone |
| 302-222 | Camden Wyoming | Wireless | Verizon |
| 302-223 | Smyrna | Landline | Teleport Communications America |
| 302-224 | Newark | Landline | Cavalier Telephone |
| 302-225 | Wilmington | Landline | Cavalier Telephone |
| 302-226 | Rehoboth Beach | Landline | Verizon |
| 302-227 | Rehoboth Beach | Landline | Verizon |
| 302-228 | Milford | Wireless | New Cingular Wireless |
| 302-229 | New Castle | Wireless | New Cingular Wireless |
| 302-230 | Wilmington | Landline | Cavalier Telephone |
| 302-231 | Millsboro | Landline | Teleport Communications America |
| 302-233 | Camden Wyoming | Landline | Teleport Communications America |
| 302-234 | Hockessin | Landline | Verizon |
| 302-235 | Hockessin | Landline | Verizon |
| 302-236 | Georgetown | Wireless | Verizon |
| 302-238 | Frankford | Landline | Verizon |
| 302-239 | Hockessin | Landline | Verizon |
| 302-240 | Camden Wyoming | Landline | Onvoy |
| 302-241 | Dover | Wireless | Sprint Spectrum |
| 302-242 | Camden Wyoming | Wireless | Verizon |
| 302-243 | Wilmington | Wireless | USA Mobility Wireless |
| 302-244 | Dover | Landline | Onvoy |
| 302-245 | Georgetown | Wireless | Verizon |
| 302-246 | Wilmington | Landline | Cavalier Telephone |
| 302-247 | Wilmington | Wireless | USA Mobility Wireless |
| 302-248 | Delmar | Landline | Cavalier Telephone |
| 302-249 | Milford | Wireless | New Cingular Wireless |
| 302-250 | Wilmington | Wireless | Sprint Spectrum |
| 302-251 | Ocean View | Landline | Cavalier Telephone |
| 302-252 | Wilmington | Landline | Teleport Communications America |
| 302-253 | Georgetown | Landline | Cavalier Telephone |
| 302-254 | Wilmington | Landline | Cavalier Telephone |
| 302-255 | Wilmington | Landline | Verizon |
| 302-256 | Wilmington | Landline | Comcast Ip Phone |
| 302-257 | Dover | Landline | Peerless Network Of Delaware |
| 302-258 | Georgetown | Landline | XO Communications |
| 302-259 | Georgetown | Wireless | Sprint Spectrum |
| 302-260 | Rehoboth Beach | Landline | Level 3 Communications |
| 302-261 | Newark | Landline | XO Communications |
| 302-262 | Seaford | Landline | Cavalier Telephone |
| 302-263 | Dover | Wireless | Allpage |
| 302-264 | Dover | Wireless | Sprint Spectrum |
| 302-265 | Milford | Wireless | New Cingular Wireless |
| 302-266 | Newark | Landline | Verizon |
| 302-268 | Wilmington | Wireless | New Cingular Wireless |
| 302-269 | Dover | Landline | XO Communications |
| 302-270 | Camden Wyoming | Wireless | Verizon |
| 302-272 | Camden Wyoming | Wireless | Verizon |
| 302-273 | Newark | Landline | Comcast Ip Phone |
| 302-274 | Wilmington | Landline | Mcimetro Access Transmission Services |
| 302-275 | Wilmington | Wireless | Sprint Spectrum |
| 302-276 | New Castle | Wireless | Sprint Spectrum |
| 302-277 | New Castle | Wireless | New Cingular Wireless |
| 302-278 | Rehoboth Beach | Landline | Bandwidth.com |
| 302-279 | Middletown | Landline | Level 3 Communications |
| 302-280 | Laurel | Landline | Cavalier Telephone |
| 302-281 | Wilmington | Wireless | T-Mobile |
| 302-282 | Wilmington | Landline | Verizon |
| 302-283 | Newark | Landline | Verizon |
| 302-284 | Felton | Landline | Verizon |
| 302-285 | Middletown | Landline | Cavalier Telephone |
| 302-286 | Newark | Landline | Verizon |
| 302-287 | Wilmington | Wireless | Verizon |
| 302-288 | Wilmington | Landline | XO Communications |
| 302-289 | Felton | Landline | Level 3 Communications |
| 302-290 | Wilmington | Wireless | New Cingular Wireless |
| 302-291 | Lewes | Landline | Mcimetro Access Transmission Services |
| 302-292 | Newark | Landline | Verizon |
| 302-293 | Wilmington | Wireless | Sprint Spectrum |
| 302-294 | Newark | Landline | Level 3 Communications |
| 302-295 | Wilmington | Landline | Level 3 Communications |
| 302-296 | Rehoboth Beach | Landline | Cavalier Telephone |
| 302-297 | Millsboro | Landline | Cavalier Telephone |
| 302-298 | Wilmington | Landline | Teleport Communications America |
| 302-299 | Wilmington | Landline | US Lec Of Pennsylvania Inc. |
| 302-300 | Wilmington | Wireless | Verizon |
| 302-301 | Newark | Landline | Mcimetro Access Transmission Services |
| 302-303 | Frankford | Landline | Onvoy |
| 302-304 | Wilmington | Wireless | Verizon |
| 302-305 | Harrington | Landline | Onvoy |
| 302-306 | Hartly | Landline | Onvoy |
| 302-308 | Wilmington | Landline | Level 3 Communications |
| 302-309 | Laurel | Landline | Onvoy |
| 302-310 | Dover | Landline | Verizon |
| 302-312 | Middletown | Wireless | Sprint Spectrum |
| 302-313 | Lewes | Landline | Level 3 Communications |
| 302-315 | Milford | Landline | Onvoy |
| 302-317 | New Castle | Landline | Level 3 Communications |
| 302-318 | Newark | Landline | Level 3 Communications |
| 302-319 | Wilmington | Wireless | Verizon |
| 302-320 | Wilmington | Landline | Verizon |
| 302-321 | Dagsboro | Landline | Cavalier Telephone |
| 302-322 | New Castle | Landline | Verizon |
| 302-323 | New Castle | Landline | Verizon |
| 302-324 | New Castle | Landline | Verizon |
| 302-325 | New Castle | Landline | Verizon |
| 302-326 | New Castle | Landline | Verizon |
| 302-327 | New Castle | Landline | Verizon |
| 302-328 | New Castle | Landline | Verizon |
| 302-329 | Milton | Landline | Cavalier Telephone |
| 302-330 | Rehoboth Beach | Landline | Cavalier Telephone |
| 302-331 | Camden Wyoming | Wireless | Sprint Spectrum |
| 302-332 | Wilmington | Wireless | Verizon |
| 302-333 | Wilmington | Wireless | New Cingular Wireless |
| 302-334 | Wilmington | Landline | Cavalier Telephone |
| 302-335 | Frederica | Landline | Verizon |
| 302-337 | Bridgeville | Landline | Verizon |
| 302-338 | Newark | Landline | XO Communications |
| 302-339 | Georgetown | Wireless | Omnipoint Communications Enterprises |
| 302-340 | Newark | Landline | XO Communications |
| 302-341 | Newark | Landline | XO Communications |
| 302-342 | Dover | Landline | Level 3 Communications |
| 302-343 | Hartly | Landline | Cavalier Telephone |
| 302-344 | Georgetown | Wireless | Sprint Spectrum |
| 302-345 | Wilmington | Wireless | Omnipoint Communications Enterprises |
| 302-346 | Dover | Landline | Cavalier Telephone |
| 302-347 | Georgetown | Landline | XO Communications |
| 302-348 | Georgetown | Landline | XO Communications |
| 302-349 | Greenwood | Landline | Verizon |
| 302-350 | Dover | Wireless | Redi-call Communications |
| 302-351 | Wilmington | Landline | Paetec Communications |
| 302-352 | Hockessin | Landline | Paetec Communications |
| 302-353 | Wilmington | Landline | Verizon |
| 302-354 | Wilmington | Wireless | Verizon |
| 302-355 | Newark | Landline | Paetec Communications |
| 302-356 | New Castle | Landline | Paetec Communications |
| 302-357 | Wilmington | Wireless | Verizon |
| 302-358 | Wilmington | Wireless | Verizon |
| 302-359 | Dover | Wireless | New Cingular Wireless |
| 302-360 | Lewes | Landline | Cavalier Telephone |
| 302-361 | Hockessin | Landline | XO Communications |
| 302-362 | Georgetown | Wireless | Verizon |
| 302-363 | Dover | Wireless | Sprint Spectrum |
| 302-364 | Dagsboro | Landline | Teleport Communications America |
| 302-365 | Newark | Landline | Comcast Ip Phone |
| 302-366 | Newark | Landline | Verizon |
| 302-367 | New Castle | Wireless | New Cingular Wireless |
| 302-368 | Newark | Landline | Verizon |
| 302-369 | Newark | Landline | Verizon |
| 302-370 | New Castle | Landline | XO Communications |
| 302-371 | Wilmington | Landline | XO Communications |
| 302-372 | Hockessin | Landline | XO Communications |
| 302-373 | Middletown | Wireless | New Cingular Wireless |
| 302-374 | Wilmington | Landline | XO Communications |
| 302-375 | Wilmington | Landline | Cavalier Telephone |
| 302-376 | Middletown | Landline | Verizon |
| 302-377 | Wilmington | Wireless | Sprint Spectrum |
| 302-378 | Middletown | Landline | Verizon |
| 302-379 | Wilmington | Wireless | Verizon |
| 302-380 | Newark | Landline | XO Communications |
| 302-381 | Georgetown | Wireless | Verizon |
| 302-382 | Camden Wyoming | Wireless | Verizon |
| 302-383 | Wilmington | Wireless | Verizon |
| 302-385 | Wilmington | Landline | XO Communications |
| 302-386 | Rehoboth Beach | Wireless | New Cingular Wireless |
| 302-387 | Camden Wyoming | Wireless | Verizon |
| 302-388 | Wilmington | Wireless | Verizon |
| 302-389 | Smyrna | Landline | Cavalier Telephone |
| 302-390 | Georgetown | Wireless | Verizon |
| 302-391 | Newark | Landline | Verizon |
| 302-392 | Newark | Landline | Cavalier Telephone |
| 302-393 | Milford | Wireless | Sprint Spectrum |
| 302-394 | Wilmington | Landline | Peerless Network Of Delaware |
| 302-395 | New Castle | Landline | Verizon |
| 302-396 | Georgetown | Wireless | Verizon |
| 302-397 | Wilmington | Landline | XO Communications |
| 302-398 | Harrington | Landline | Verizon |
| 302-399 | Dover | Wireless | Sprint Spectrum |
| 302-400 | New Castle | Landline | XO Communications |
| 302-401 | Dover | Landline | Level 3 Communications |
| 302-402 | Ocean View | Landline | Level 3 Communications |
| 302-403 | Rehoboth Beach | Landline | Onvoy |
| 302-404 | Seaford | Landline | Level 3 Communications |
| 302-405 | Selbyville | Landline | Onvoy |
| 302-406 | Smyrna | Landline | Onvoy |
| 302-407 | Wilmington | Landline | Level 3 Communications |
| 302-408 | Wilmington | Landline | XO Communications |
| 302-409 | Wilmington | Landline | Bandwidth.com |
| 302-412 | Wilmington | Landline | Nutel Comm |
| 302-413 | New Castle | Landline | Verizon |
| 302-414 | New Castle | Landline | XO Communications |
| 302-415 | Wilmington | Wireless | Verizon |
| 302-416 | Wilmington | Wireless | Verizon |
| 302-417 | Wilmington | Landline | XO Communications |
| 302-419 | New Castle | Landline | AT&T |
| 302-420 | Wilmington | Wireless | Sprint Spectrum |
| 302-421 | Wilmington | Landline | Verizon |
| 302-422 | Milford | Landline | Verizon |
| 302-423 | Dover | Wireless | New Cingular Wireless |
| 302-424 | Milford | Landline | Verizon |
| 302-425 | Wilmington | Landline | Verizon |
| 302-426 | Wilmington | Landline | Verizon |
| 302-427 | Wilmington | Landline | Verizon |
| 302-428 | Wilmington | Landline | Verizon |
| 302-429 | Wilmington | Landline | Verizon |
| 302-430 | Milford | Landline | Verizon |
| 302-431 | Wilmington | Wireless | USA Mobility Wireless |
| 302-432 | Wilmington | Landline | Verizon |
| 302-433 | Wilmington | Landline | Verizon |
| 302-434 | Wilmington | Landline | Verizon |
| 302-435 | Wilmington | Wireless | USA Mobility Wireless |
| 302-436 | Selbyville | Landline | Verizon |
| 302-437 | Middletown | Wireless | New Cingular Wireless |
| 302-438 | Wilmington | Wireless | New Cingular Wireless |
| 302-439 | Wilmington | Landline | AT&T |
| 302-440 | Newark | Landline | Peerless Network Of Delaware |
| 302-441 | Milford | Wireless | Redi-call Communications |
| 302-442 | Wilmington | Landline | AT&T |
| 302-444 | Newark | Landline | Teleport Communications America |
| 302-445 | Bridgeville | Landline | Coretel Delaware |
| 302-446 | Camden Wyoming | Landline | Coretel Delaware |
| 302-447 | Georgetown | Landline | Coretel Delaware |
| 302-448 | Georgetown | Landline | Netcarrier Telecom |
| 302-449 | Middletown | Landline | Verizon |
| 302-450 | Dover | Landline | AT&T |
| 302-451 | Newark | Landline | Verizon |
| 302-452 | Newark | Landline | Verizon |
| 302-453 | Newark | Landline | Verizon |
| 302-454 | Newark | Landline | Verizon |
| 302-455 | Newark | Landline | Verizon |
| 302-456 | Newark | Landline | Verizon |
| 302-457 | Newark | Landline | Verizon |
| 302-458 | Newark | Landline | Verizon |
| 302-459 | Milford | Landline | Coretel Delaware |
| 302-461 | Newark | Landline | Coretel Delaware |
| 302-462 | Delmar | Wireless | Sprint Spectrum |
| 302-463 | Wilmington | Wireless | Verizon |
| 302-464 | Middletown | Landline | Idt America |
| 302-465 | Dover | Wireless | Omnipoint Communications Enterprises |
| 302-466 | Delmar | Landline | Teleport Communications America |
| 302-467 | Wilmington | Landline | Verizon |
| 302-468 | Wilmington | Wireless | Verizon |
| 302-469 | Felton | Landline | Teleport Communications America |
| 302-470 | Georgetown | Wireless | Verizon |
| 302-471 | Smyrna | Landline | Coretel Delaware |
| 302-472 | Wilmington | Landline | Cavalier Telephone |
| 302-473 | Wilmington | Landline | Vonage America |
| 302-474 | Wilmington | Wireless | USA Mobility Wireless |
| 302-475 | Wilmington | Landline | Verizon |
| 302-476 | Wilmington | Landline | Verizon |
| 302-477 | Wilmington | Landline | Verizon |
| 302-478 | Wilmington | Landline | Verizon |
| 302-479 | Wilmington | Landline | Verizon |
| 302-480 | Dover | Wireless | Sprint Spectrum |
| 302-481 | Frankford | Landline | Cavalier Telephone |
| 302-482 | Wilmington | Landline | D-tel |
| 302-483 | Wilmington | Landline | Cavalier Telephone |
| 302-485 | Wilmington | Landline | Mcimetro Access Transmission Services |
| 302-486 | Newark | Landline | Vonage America |
| 302-487 | Dover | Wireless | Omnipoint Communications Enterprises |
| 302-488 | Harrington | Landline | Onvoy |
| 302-489 | Hockessin | Landline | Cavalier Telephone |
| 302-490 | Georgetown | Wireless | Omnipoint Communications Enterprises |
| 302-491 | Milford | Landline | Level 3 Communications |
| 302-492 | Hartly | Landline | Verizon |
| 302-493 | Rehoboth Beach | Wireless | New Cingular Wireless |
| 302-494 | Wilmington | Wireless | Sprint Spectrum |
| 302-495 | Greenwood | Landline | Cavalier Telephone |
| 302-496 | Newark | Landline | Level 3 Communications |
| 302-497 | Laurel | Landline | Level 3 Communications |
| 302-498 | Wilmington | Landline | Verizon |
| 302-499 | Newark | Landline | XO Communications |
| 302-500 | Georgetown | Wireless | Mcc Telephony Of The Mid-atlantic |
| 302-501 | New Castle | Landline | Teleport Communications America |
| 302-502 | Wilmington | Landline | Comcast Ip Phone |
| 302-503 | Milford | Wireless | New Cingular Wireless |
| 302-504 | Wilmington | Landline | Atx Telecommunications Services |
| 302-505 | Camden Wyoming | Wireless | Verizon |
| 302-506 | Newark | Landline | Net-tel |
| 302-507 | Wilmington | Wireless | Sprint Spectrum |
| 302-508 | Smyrna | Landline | Local Access |
| 302-509 | Hockessin | Landline | Comcast Ip Phone |
| 302-510 | Wilmington | Wireless | Omnipoint Communications Enterprises |
| 302-512 | Wilmington | Landline | Level 3 Communications |
| 302-513 | Wilmington | Wireless | Verizon |
| 302-514 | Smyrna | Landline | Atx Telecommunications Services |
| 302-515 | Georgetown | Landline | Verizon |
| 302-516 | Wilmington | Landline | Mcimetro Access Transmission Services |
| 302-517 | Hockessin | Landline | XO Communications |
| 302-518 | Wilmington | Wireless | Verizon |
| 302-519 | Georgetown | Wireless | Verizon |
| 302-520 | Newark | Landline | XO Communications |
| 302-521 | Wilmington | Wireless | New Cingular Wireless |
| 302-522 | Georgetown | Wireless | Omnipoint Communications Enterprises |
| 302-523 | Wilmington | Wireless | Redi-call Communications |
| 302-524 | Selbyville | Landline | Atx Telecommunications Services |
| 302-525 | Newark | Landline | Level 3 Communications |
| 302-526 | Dover | Landline | Level 3 Communications |
| 302-527 | Felton | Landline | Cavalier Telephone |
| 302-528 | Wilmington | Wireless | Verizon |
| 302-529 | Wilmington | Landline | Verizon |
| 302-530 | Wilmington | Wireless | Verizon |
| 302-531 | Camden Wyoming | Landline | Cavalier Telephone |
| 302-532 | Millsboro | Landline | Peerless Network Of Delaware |
| 302-533 | Newark | Landline | Teleport Communications America |
| 302-534 | Wilmington | Landline | Net-tel |
| 302-535 | Camden Wyoming | Wireless | Verizon |
| 302-536 | Seaford | Landline | Atx Telecommunications Services |
| 302-537 | Ocean View | Landline | Verizon |
| 302-538 | Camden Wyoming | Wireless | Verizon |
| 302-539 | Ocean View | Landline | Verizon |
| 302-540 | Wilmington | Wireless | Verizon |
| 302-541 | Ocean View | Landline | Verizon |
| 302-542 | Georgetown | Wireless | Verizon |
| 302-543 | Wilmington | Landline | Verizon |
| 302-545 | Wilmington | Wireless | Verizon |
| 302-546 | Dover | Wireless | Omnipoint Communications Enterprises |
| 302-547 | Wilmington | Wireless | Verizon |
| 302-548 | Georgetown | Wireless | Omnipoint Communications Enterprises |
| 302-549 | Millsboro | Landline | Peerless Network Of Delaware |
| 302-550 | Lewes | Landline | Onvoy |
| 302-551 | Wilmington | Landline | Brightlink Communications |
| 302-552 | Wilmington | Landline | Verizon |
| 302-553 | Wilmington | Wireless | Omnipoint Communications Enterprises |
| 302-554 | Camden Wyoming | Wireless | Verizon |
| 302-556 | Delmar | Landline | Onvoy |
| 302-557 | Ocean View | Landline | Onvoy |
| 302-559 | Wilmington | Wireless | New Cingular Wireless |
| 302-561 | New Castle | Wireless | New Cingular Wireless |
| 302-562 | New Castle | Wireless | New Cingular Wireless |
| 302-563 | Middletown | Wireless | New Cingular Wireless |
| 302-564 | Selbyville | Landline | Cavalier Telephone |
| 302-565 | Newark | Landline | Level 3 Communications |
| 302-566 | Harrington | Landline | Teleport Communications America |
| 302-567 | Rehoboth Beach | Wireless | New Cingular Wireless |
| 302-569 | Rehoboth Beach | Landline | Atx Telecommunications Services |
| 302-570 | Hartly | Landline | Teleport Communications America |
| 302-571 | Wilmington | Landline | Verizon |
| 302-572 | Frederica | Landline | Cavalier Telephone |
| 302-573 | Wilmington | Landline | Verizon |
| 302-574 | Wilmington | Landline | Verizon |
| 302-575 | Wilmington | Landline | Verizon |
| 302-576 | Wilmington | Landline | Verizon |
| 302-577 | Wilmington | Landline | Verizon |
| 302-578 | Frankford | Landline | Teleport Communications America |
| 302-581 | Ocean View | Landline | Atx Telecommunications Services |
| 302-583 | Newark | Landline | XO Communications |
| 302-584 | Wilmington | Wireless | Verizon |
| 302-585 | Hockessin | Landline | XO Communications |
| 302-588 | Wilmington | Wireless | New Cingular Wireless |
| 302-593 | Wilmington | Wireless | Verizon |
| 302-594 | Wilmington | Landline | Verizon |
| 302-595 | Newark | Landline | Teleport Communications America |
| 302-597 | Newark | Landline | XO Communications |
| 302-598 | Wilmington | Wireless | Verizon |
| 302-600 | Wilmington | Landline | Onvoy |
| 302-601 | Newark | Landline | Bandwidth.com |
| 302-602 | Newark | Landline | Netcarrier Telecom |
| 302-603 | Camden Wyoming | Wireless | Verizon |
| 302-604 | Georgetown | Landline | Level 3 Communications |
| 302-605 | Wilmington | Wireless | Verizon |
| 302-607 | Newark | Landline | Atx Telecommunications Services |
| 302-608 | Dover | Landline | Bandwidth.com |
| 302-612 | Camden Wyoming | Wireless | Verizon |
| 302-613 | New Castle | Landline | Atx Telecommunications Services |
| 302-616 | Ocean View | Landline | Mcc Telephony Of The Mid-atlantic |
| 302-622 | Wilmington | Landline | Verizon |
| 302-623 | Newark | Landline | Verizon |
| 302-624 | New Castle | Wireless | Allpage |
| 302-628 | Seaford | Landline | Verizon |
| 302-629 | Seaford | Landline | Verizon |
| 302-631 | Newark | Landline | Verizon |
| 302-632 | Camden Wyoming | Wireless | Verizon |
| 302-633 | Wilmington | Landline | Verizon |
| 302-634 | Wilmington | Landline | Verizon |
| 302-635 | Hockessin | Landline | Teleport Communications America |
| 302-636 | Wilmington | Landline | Verizon |
| 302-637 | Wilmington | Wireless | USA Mobility Wireless |
| 302-639 | New Castle | Landline | Coretel Delaware |
| 302-643 | Milton | Landline | Atx Telecommunications Services |
| 302-644 | Lewes | Landline | Verizon |
| 302-645 | Lewes | Landline | Verizon |
| 302-647 | Wilmington | Landline | Verizon |
| 302-648 | Millsboro | Landline | Teleport Communications America |
| 302-650 | Wilmington | Landline | Ctc Communications |
| 302-651 | Wilmington | Landline | Verizon |
| 302-652 | Wilmington | Landline | Verizon |
| 302-653 | Smyrna | Landline | Verizon |
| 302-654 | Wilmington | Landline | Verizon |
| 302-655 | Wilmington | Landline | Verizon |
| 302-656 | Wilmington | Landline | Verizon |
| 302-657 | Wilmington | Landline | Verizon |
| 302-658 | Wilmington | Landline | Verizon |
| 302-659 | Smyrna | Landline | Verizon |
| 302-660 | Wilmington | Landline | Mcimetro Access Transmission Services |
| 302-661 | Wilmington | Landline | Verizon |
| 302-662 | Selbyville | Wireless | Onvoy Spectrum |
| 302-663 | Millsboro | Landline | Atx Telecommunications Services |
| 302-664 | Milton | Landline | Teleport Communications America |
| 302-665 | Frederica | Landline | Onvoy |
| 302-666 | Dover | Landline | Verizon |
| 302-667 | Rehoboth Beach | Landline | Onvoy |
| 302-668 | Wilmington | Landline | Comcast Ip Phone |
| 302-669 | New Castle | Landline | Teleport Communications America |
| 302-670 | Dover | Wireless | New Cingular Wireless |
| 302-672 | Dover | Landline | Verizon |
| 302-674 | Dover | Landline | Verizon |
| 302-676 | Middletown | Landline | Onvoy |
| 302-677 | Dover | Landline | Verizon |
| 302-678 | Dover | Landline | Verizon |
| 302-682 | Milford | Landline | Atx Telecommunications Services |
| 302-683 | Wilmington | Landline | Verizon |
| 302-684 | Milton | Landline | Verizon |
| 302-685 | Wilmington | Landline | Verizon |
| 302-688 | Wilmington | Landline | Fractel |
| 302-689 | New Castle | Landline | XO Communications |
| 302-690 | Hockessin | Wireless | New Cingular Wireless |
| 302-691 | Wilmington | Landline | XO Communications |
| 302-695 | Wilmington | Landline | Verizon |
| 302-696 | Middletown | Landline | Atx Telecommunications Services |
| 302-697 | Camden Wyoming | Landline | Verizon |
| 302-698 | Camden Wyoming | Landline | Verizon |
| 302-702 | Seaford | Landline | US Lec Of Pennsylvania Inc. |
| 302-703 | Lewes | Landline | Atx Telecommunications Services |
| 302-709 | Newark | Landline | Cavalier Telephone |
| 302-715 | Laurel | Landline | Atx Telecommunications Services |
| 302-721 | Bridgeville | Landline | Cavalier Telephone |
| 302-722 | Newark | Landline | Level 3 Communications |
| 302-723 | Wilmington | Wireless | Sprint Spectrum |
| 302-724 | Dover | Landline | Level 3 Communications |
| 302-725 | Milford | Landline | Level 3 Communications |
| 302-727 | Rehoboth Beach | Landline | Level 3 Communications |
| 302-729 | Hockessin | Landline | XO Communications |
| 302-730 | Dover | Landline | Verizon |
| 302-731 | Newark | Landline | Verizon |
| 302-732 | Dagsboro | Landline | Verizon |
| 302-733 | Newark | Landline | Verizon |
| 302-734 | Dover | Landline | Verizon |
| 302-735 | Dover | Landline | Verizon |
| 302-736 | Dover | Landline | Verizon |
| 302-737 | Newark | Landline | Verizon |
| 302-738 | Newark | Landline | Verizon |
| 302-739 | Dover | Landline | Verizon |
| 302-740 | New Castle | Wireless | New Cingular Wireless |
| 302-741 | Dover | Landline | Verizon |
| 302-743 | New Castle | Wireless | New Cingular Wireless |
| 302-744 | Dover | Landline | Verizon |
| 302-745 | Milford | Wireless | New Cingular Wireless |
| 302-746 | Wilmington | Landline | Atx Telecommunications Services |
| 302-747 | Dover | Landline | Teleport Communications America |
| 302-750 | New Castle | Wireless | New Cingular Wireless |
| 302-751 | Frederica | Landline | Teleport Communications America |
| 302-752 | Georgetown | Landline | Teleport Communications America |
| 302-753 | New Castle | Wireless | New Cingular Wireless |
| 302-754 | Greenwood | Landline | Teleport Communications America |
| 302-757 | Wilmington | Landline | Netcarrier Telecom |
| 302-758 | Newark | Landline | Verizon |
| 302-760 | Dover | Landline | Verizon |
| 302-761 | Wilmington | Landline | Verizon |
| 302-762 | Wilmington | Landline | Verizon |
| 302-763 | Hockessin | Landline | Atx Telecommunications Services |
| 302-764 | Wilmington | Landline | Verizon |
| 302-765 | Wilmington | Landline | Verizon |
| 302-766 | Hockessin | Wireless | New Cingular Wireless |
| 302-770 | Milton | Landline | Onvoy |
| 302-772 | Wilmington | Landline | Verizon |
| 302-773 | Wilmington | Landline | Verizon |
| 302-774 | Wilmington | Landline | Verizon |
| 302-775 | Selbyville | Landline | Onvoy |
| 302-777 | Wilmington | Landline | Verizon |
| 302-778 | Wilmington | Landline | Verizon |
| 302-779 | Hartly | Landline | Atx Telecommunications Services |
| 302-780 | Delmar | Landline | Coretel Delaware |
| 302-781 | Newark | Landline | AT&T |
| 302-782 | Dover | Landline | Coretel Delaware |
| 302-783 | Lewes | Landline | Coretel Delaware |
| 302-784 | Wilmington | Landline | Verizon |
| 302-786 | Harrington | Landline | Atx Telecommunications Services |
| 302-787 | New Castle | Landline | Coretel Delaware |
| 302-788 | Selbyville | Landline | Coretel Delaware |
| 302-789 | Wilmington | Landline | Coretel Delaware |
| 302-791 | Wilmington | Landline | Verizon |
| 302-792 | Wilmington | Landline | Verizon |
| 302-793 | Wilmington | Landline | Verizon |
| 302-797 | Wilmington | Landline | Verizon |
| 302-798 | Wilmington | Landline | Verizon |
| 302-800 | New Castle | Landline | Onvoy |
| 302-803 | Wilmington | Wireless | Verizon |
| 302-804 | Frankford | Landline | Atx Telecommunications Services |
| 302-815 | Greenwood | Landline | Atx Telecommunications Services |
| 302-822 | Georgetown | Wireless | Redi-call Communications |
| 302-824 | Wilmington | Wireless | Verizon |
| 302-826 | Wilmington | Landline | Teleport Communications America |
| 302-827 | Lewes | Landline | Teleport Communications America |
| 302-828 | Middletown | Landline | Teleport Communications America |
| 302-829 | Ocean View | Landline | Teleport Communications America |
| 302-830 | Wilmington | Landline | Verizon |
| 302-831 | Newark | Landline | Verizon |
| 302-832 | Newark | Landline | Verizon |
| 302-834 | Newark | Landline | Verizon |
| 302-836 | Newark | Landline | Verizon |
| 302-837 | Newark | Landline | Verizon |
| 302-838 | Newark | Landline | Verizon |
| 302-839 | Milford | Landline | Cavalier Telephone |
| 302-841 | Georgetown | Landline | Atx Telecommunications Services |
| 302-842 | Wilmington | Landline | Coretel Delaware |
| 302-844 | Smyrna | Landline | Fractel |
| 302-846 | Laurel | Landline | Verizon |
| 302-853 | Georgetown | Landline | Verizon |
| 302-854 | Georgetown | Landline | Verizon |
| 302-855 | Georgetown | Landline | Verizon |
| 302-856 | Georgetown | Landline | Verizon |
| 302-857 | Dover | Landline | Verizon |
| 302-858 | Georgetown | Landline | Verizon |
| 302-861 | Newark | Landline | XO Communications |
| 302-864 | Rehoboth Beach | Landline | Teleport Communications America |
| 302-865 | Frederica | Landline | Atx Telecommunications Services |
| 302-866 | Milford | Landline | Fractel |
| 302-867 | Wilmington | Landline | Commio |
| 302-870 | Felton | Landline | Atx Telecommunications Services |
| 302-875 | Laurel | Landline | Verizon |
| 302-877 | Laurel | Landline | Verizon |
| 302-878 | Millsboro | Landline | Onvoy |
| 302-883 | Dover | Landline | Atx Telecommunications Services |
| 302-884 | Wilmington | Landline | Verizon |
| 302-885 | Wilmington | Landline | Verizon |
| 302-886 | Wilmington | Landline | Verizon |
| 302-887 | Wilmington | Landline | Verizon |
| 302-888 | Wilmington | Landline | Verizon |
| 302-889 | Dagsboro | Landline | Onvoy |
| 302-892 | Wilmington | Landline | Verizon |
| 302-893 | Wilmington | Wireless | Verizon |
| 302-894 | Newark | Landline | Verizon |
| 302-897 | Wilmington | Wireless | Omnipoint Communications Enterprises |
| 302-898 | Wilmington | Wireless | Omnipoint Communications Enterprises |
| 302-899 | Camden Wyoming | Landline | Fractel |
| 302-900 | Camden Wyoming | Landline | Onvoy |
| 302-907 | Delmar | Landline | Atx Telecommunications Services |
| 302-918 | Newark | Landline | Atx Telecommunications Services |
| 302-922 | Camden Wyoming | Wireless | Verizon |
| 302-924 | Harrington | Landline | Cavalier Telephone |
| 302-927 | Dagsboro | Landline | Atx Telecommunications Services |
| 302-929 | Laurel | Landline | Teleport Communications America |
| 302-930 | Milford | Landline | Teleport Communications America |
| 302-932 | Wilmington | Wireless | Verizon |
| 302-933 | Millsboro | Landline | Verizon |
| 302-934 | Millsboro | Landline | Verizon |
| 302-943 | Camden Wyoming | Landline | Atx Telecommunications Services |
| 302-945 | Rehoboth Beach | Landline | Verizon |
| 302-946 | Newark | Landline | Fractel |
| 302-947 | Rehoboth Beach | Landline | Verizon |
| 302-956 | Bridgeville | Landline | Atx Telecommunications Services |
| 302-966 | Millsboro | Landline | Atx Telecommunications Services |
| 302-981 | Newark | Wireless | Sprint Spectrum |
| 302-983 | Newark | Wireless | Sprint Spectrum |
| 302-984 | Wilmington | Landline | Verizon |
| 302-985 | Wilmington | Landline | Verizon |
| 302-988 | Selbyville | Landline | Teleport Communications America |
| 302-990 | Seaford | Landline | Teleport Communications America |
| 302-991 | New Castle | Landline | Onvoy |
| 302-992 | Wilmington | Landline | Verizon |
| 302-993 | Wilmington | Landline | Verizon |
| 302-994 | Wilmington | Landline | Verizon |
| 302-995 | Wilmington | Landline | Verizon |
| 302-996 | Wilmington | Landline | Verizon |
| 302-998 | Wilmington | Landline | Verizon |
| 302-999 | Wilmington | Landline | Verizon |