All assignees
800 prefixes in 630 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 630-300 | NAPERVILLE | 7196 | — | Yes |
| 630-301 | AURORA | 8702 | — | Yes |
| 630-302 | NORTHBROOK | 6333 | — | Yes |
| 630-303 | NAPERVILLE | 6333 | 2004-09-02 | Yes |
| 630-304 | LA GRANGE | 6795 | — | — |
| 630-305 | NAPERVILLE | 9329 | — | — |
| 630-306 | ROSELLE | 6534 | — | — |
| 630-307 | ROSELLE | 9329 | — | — |
| 630-308 | LA GRANGE | 6333 | — | — |
| 630-309 | NORTHBROOK | 6333 | — | — |
| 630-310 | DOWNERSGRV | 8702 | — | Yes |
| 630-311 | XXXXXXXXXX | MULT | — | — |
| 630-312 | LEMONT | 9329 | 2007-02-15 | Yes |
| 630-313 | GENEVA | 8702 | — | Yes |
| 630-314 | ROSELLE | 9329 | — | — |
| 630-315 | WHEATON | 7229 | — | Yes |
| 630-316 | LA GRANGE | 9748 | 2001-04-23 | — |
| 630-317 | LOMBARD | 7229 | — | Yes |
| 630-318 | BIG ROCK | 6115 | — | Yes |
| 630-319 | LA GRANGE | 6333 | — | — |
| 630-320 | HINSDALE | 7136 | — | Yes |
| 630-321 | HINSDALE | 9329 | — | — |
| 630-322 | DOWNERSGRV | 9329 | — | — |
| 630-323 | HINSDALE | 9329 | — | — |
| 630-324 | DOWNERSGRV | 7229 | — | Yes |
| 630-325 | HINSDALE | 9329 | — | — |
| 630-326 | BATAVIA | 7136 | — | Yes |
| 630-327 | LA GRANGE | 6529 | — | Yes |
| 630-328 | NAPERVILLE | 7136 | — | Yes |
| 630-329 | ROSELLE | 6534 | — | Yes |
| 630-330 | ELMHURST | 6529 | — | Yes |
| 630-331 | ELMHURST | 224C | 2023-06-26 | Yes |
| 630-332 | PLANO | 829J | 2009-11-03 | Yes |
| 630-333 | ELMHURST | 6529 | — | Yes |
| 630-334 | LA GRANGE | 6333 | — | — |
| 630-335 | NAPERVILLE | 6529 | — | Yes |
| 630-336 | ROSELLE | 6534 | — | — |
| 630-337 | ROSELLE | 6534 | — | — |
| 630-338 | ST CHARLES | 6534 | — | Yes |
| 630-339 | ROSELLE | 6115 | — | Yes |
| 630-340 | AURORA | 6529 | 2006-07-13 | Yes |
| 630-341 | LA GRANGE | 6333 | — | — |
| 630-342 | LA GRANGE | 6630 | — | — |
| 630-343 | LEMONT | 7136 | — | Yes |
| 630-344 | WHEATON | 7229 | — | Yes |
| 630-345 | GENEVA | 9329 | — | Yes |
| 630-346 | W CHICAGO | 6534 | — | Yes |
| 630-347 | ROSELLE | 6534 | — | — |
| 630-348 | GLEN ELLYN | 7229 | — | Yes |
| 630-349 | ELMHURST | 197D | 2019-10-10 | Yes |
| 630-350 | BENSENVL | 9329 | — | Yes |
| 630-351 | ROSELLE | 9329 | — | — |
| 630-352 | NAPERVILLE | 6333 | 2008-02-07 | Yes |
| 630-353 | DOWNERSGRV | 9329 | — | — |
| 630-354 | BENSENVL | 829J | — | Yes |
| 630-355 | NAPERVILLE | 9329 | — | — |
| 630-356 | LA GRANGE | 6630 | — | — |
| 630-357 | NAPERVILLE | 9329 | — | — |
| 630-358 | KANEVILLE | 6115 | — | Yes |
| 630-359 | ELMHURST | 7136 | — | Yes |
| 630-360 | SUGARGROVE | 6333 | 2010-09-02 | Yes |
| 630-361 | ITASCA | 6529 | — | Yes |
| 630-362 | NAPERVILLE | 6529 | 2002-02-11 | — |
| 630-363 | ROSELLE | 6534 | — | — |
| 630-364 | NAPERVILLE | 6115 | — | Yes |
| 630-365 | ELBURN | 9329 | — | Yes |
| 630-366 | HINSDALE | 7229 | — | Yes |
| 630-367 | LA GRANGE | 6630 | — | — |
| 630-368 | HINSDALE | 9329 | — | — |
| 630-369 | NAPERVILLE | 9329 | — | — |
| 630-370 | NORTHBROOK | 6333 | — | Yes |
| 630-371 | HINSDALE | 7196 | — | Yes |
| 630-372 | BARTLETT | 9329 | — | — |
| 630-373 | ROSELLE | 6534 | — | — |
| 630-374 | NAPERVILLE | 6630 | — | — |
| 630-375 | AURORA | 9329 | — | — |
| 630-376 | LOMBARD | 7196 | — | Yes |
| 630-377 | ST CHARLES | 9329 | — | — |
| 630-378 | LEMONT | 9329 | — | Yes |
| 630-379 | ELMHURST | 7196 | — | Yes |
| 630-380 | ROSELLE | 6534 | — | Yes |
| 630-381 | YORKVILLE | 9329 | 2015-01-15 | Yes |
| 630-382 | HINSDALE | 7229 | — | Yes |
| 630-383 | OSWEGO | 7196 | — | Yes |
| 630-384 | WHEATON | 9329 | — | Yes |
| 630-385 | YORKVILLE | 6115 | — | Yes |
| 630-386 | W CHICAGO | 6534 | 2005-07-09 | Yes |
| 630-387 | ELBURN | 460K | — | Yes |
| 630-388 | NAPERVILLE | 7196 | — | Yes |
| 630-389 | BATAVIA | 6115 | — | Yes |
| 630-390 | DOWNERSGRV | 7196 | — | Yes |
| 630-391 | SUGARGROVE | 6333 | — | Yes |
| 630-392 | NAPERVILLE | 6529 | 2004-01-21 | Yes |
| 630-393 | WARRENVL | 9329 | — | Yes |
| 630-394 | KANEVILLE | 984E | 2012-11-05 | Yes |
| 630-395 | DOWNERSGRV | 7229 | — | Yes |
| 630-396 | LOMBARD | 8702 | — | Yes |
| 630-397 | GENEVA | 829J | 2001-04-10 | Yes |
| 630-398 | BARTLETT | 6534 | 2005-01-12 | Yes |
| 630-399 | LA GRANGE | 6333 | — | — |
These are initial assignees from NANPA CO-code records — because of number portability, the current serving carrier of individual numbers may differ. Bulk export requires a membership.