All assignees
609 prefixes in 224 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 224-300 | DEERFIELD | 6534 | — | Yes |
| 224-301 | DESPLAINES | 6333 | 2012-09-05 | Yes |
| 224-302 | WAUKEGAN | 9329 | 2012-07-13 | Yes |
| 224-303 | WAUKEGAN | 6534 | 2012-07-05 | Yes |
| 224-304 | ZION | 829J | 2010-05-19 | Yes |
| 224-305 | NORTHBROOK | 6529 | 2003-02-19 | Yes |
| 224-306 | NORTHBROOK | 6333 | — | Yes |
| 224-307 | EVANSTON | 6534 | 2012-09-27 | Yes |
| 224-308 | ROUND LAKE | 6529 | 2012-05-02 | Yes |
| 224-309 | NORTHBROOK | 224C | 2023-06-26 | Yes |
| 224-310 | ARLIGTNHTS | 224C | — | Yes |
| 224-311 | XXXXXXXXXX | MULT | — | — |
| 224-312 | ROSELLE | 224C | 2023-06-26 | Yes |
| 224-313 | WHEELING | 224C | 2015-12-23 | Yes |
| 224-314 | ARLIGTNHTS | 7229 | 2019-08-07 | Yes |
| 224-315 | DESPLAINES | 6333 | 2012-10-15 | Yes |
| 224-316 | NORTHBROOK | 6333 | 2012-10-19 | Yes |
| 224-317 | LAKEFOREST | 7136 | 2019-10-10 | Yes |
| 224-318 | ARLIGTNHTS | 318J | 2013-01-03 | Yes |
| 224-319 | DESPLAINES | 984E | 2019-10-23 | Yes |
| 224-320 | LAKEZURICH | 460K | 2002-01-21 | — |
| 224-321 | WAUKEGAN | 5562 | 2006-09-26 | Yes |
| 224-322 | ARLIGTNHTS | 6529 | 2017-03-20 | Yes |
| 224-323 | ARLIGTNHTS | 6534 | 2009-10-07 | Yes |
| 224-324 | ARLIGTNHTS | 6534 | 2012-04-10 | Yes |
| 224-325 | ELGIN | 6333 | 2008-12-15 | Yes |
| 224-326 | NORTHBROOK | 318J | 2013-04-23 | Yes |
| 224-327 | MUNDELEIN | 7136 | 2020-04-27 | Yes |
| 224-328 | WINNETKA | 224C | 2020-05-28 | Yes |
| 224-329 | ROSELLE | 6534 | 2020-06-08 | Yes |
| 224-330 | NORTHBROOK | 7196 | 2005-09-23 | Yes |
| 224-331 | WAUKEGAN | 224C | 2023-06-26 | Yes |
| 224-332 | LAKEFOREST | 7136 | 2020-05-06 | Yes |
| 224-333 | ALGONQUIN | 318J | 2005-02-17 | Yes |
| 224-334 | ARLIGTNHTS | 6529 | 2014-03-05 | Yes |
| 224-335 | ANTIOCH | 495J | 2020-08-27 | Yes |
| 224-336 | NORTHBROOK | 6529 | 2013-07-09 | Yes |
| 224-337 | FOX LAKE | 6534 | 2013-03-19 | Yes |
| 224-338 | ROUND LAKE | 318J | 2006-10-12 | Yes |
| 224-339 | ELGIN | 6333 | 2014-09-29 | Yes |
| 224-340 | DESPLAINES | 6333 | — | Yes |
| 224-341 | SKOKIE | 6333 | 2020-12-18 | Yes |
| 224-342 | ARLIGTNHTS | 965H | 2019-10-11 | Yes |
| 224-343 | NORTHBROOK | 6529 | 2007-09-29 | Yes |
| 224-344 | WILMETTE | 224C | 2020-05-28 | Yes |
| 224-345 | ARLIGTNHTS | 6534 | 2005-03-02 | Yes |
| 224-346 | LAKE VILLA | 965H | 2020-07-14 | Yes |
| 224-347 | ARLIGTNHTS | 7196 | 2014-05-05 | Yes |
| 224-348 | ALGONQUIN | 965H | 2019-10-10 | Yes |
| 224-349 | ARLIGTNHTS | 6529 | 2021-01-13 | Yes |
| 224-350 | EVANSTON | 495J | 2020-09-04 | Yes |
| 224-351 | HALF DAY | 7229 | 2008-10-17 | Yes |
| 224-352 | HALF DAY | 7229 | 2014-03-25 | Yes |
| 224-353 | ROSELLE | 8702 | 2006-04-27 | Yes |
| 224-354 | DESPLAINES | 197D | 2020-09-18 | Yes |
| 224-355 | NORTHBROOK | 6529 | 2005-04-22 | Yes |
| 224-356 | ELK GROVE | 145J | 2007-03-14 | Yes |
| 224-357 | CARY | 516C | 2006-03-16 | Yes |
| 224-358 | MUNDELEIN | 6534 | 2010-08-10 | Yes |
| 224-359 | ELGIN | 460K | 2004-10-13 | Yes |
| 224-360 | MUNDELEIN | 984E | 2010-08-17 | Yes |
| 224-361 | DESPLAINES | 9329 | — | Yes |
| 224-362 | ZION | 965H | 2019-10-14 | Yes |
| 224-363 | ELGIN | 6529 | 2020-09-30 | Yes |
| 224-364 | EVANSTON | 9329 | 2003-06-05 | Yes |
| 224-365 | NORTHBROOK | 224C | — | Yes |
| 224-366 | ELK GROVE | 6115 | 2005-03-30 | Yes |
| 224-367 | DUNDEE | 965H | 2019-10-11 | Yes |
| 224-368 | ARLIGTNHTS | 6529 | 2020-12-11 | Yes |
| 224-369 | WAUKEGAN | 6529 | 2021-01-14 | Yes |
| 224-370 | DESPLAINES | 6333 | 2021-01-25 | Yes |
| 224-371 | GRAYSLAKE | 224C | 2021-02-04 | Yes |
| 224-372 | LAKE VILLA | 516C | 2006-11-07 | Yes |
| 224-373 | DEERFIELD | 6333 | 2021-02-11 | Yes |
| 224-374 | NORTHBROOK | 6333 | 2006-10-24 | Yes |
| 224-375 | ALGONQUIN | 6534 | 2021-03-09 | Yes |
| 224-376 | FOX LAKE | 6534 | 2021-03-25 | Yes |
| 224-377 | HALF DAY | 6529 | 2005-02-21 | Yes |
| 224-378 | LIBERTYVL | 224C | 2021-03-30 | Yes |
| 224-379 | PARK RIDGE | 224C | 2021-03-30 | Yes |
| 224-380 | PLATO CTR | 624H | — | Yes |
| 224-381 | WAUKEGAN | 6529 | 2001-11-13 | Yes |
| 224-382 | GLENVIEW | 6333 | 2021-03-31 | Yes |
| 224-383 | NORTHBROOK | 460K | 2004-05-24 | Yes |
| 224-384 | ARLIGTNHTS | 6529 | 2021-05-14 | Yes |
| 224-385 | BARRINGTON | 6529 | 2014-06-11 | Yes |
| 224-386 | PALATINE | 6529 | 2014-09-02 | Yes |
| 224-387 | ARLIGTNHTS | 6529 | 2007-09-28 | Yes |
| 224-388 | ARLIGTNHTS | 6529 | 2005-02-18 | Yes |
| 224-389 | ALGONQUIN | 6534 | 2021-06-07 | Yes |
| 224-390 | ROUND LAKE | 6529 | 2021-07-07 | Yes |
| 224-391 | ARLIGTNHTS | 6529 | 2021-08-03 | Yes |
| 224-392 | NORTHBROOK | 6529 | 2002-09-23 | — |
| 224-393 | HUNTLEY | 224C | 2021-06-09 | Yes |
| 224-394 | BARTLETT | 224C | 2021-07-14 | Yes |
| 224-395 | BENSENVL | 224C | 2021-07-14 | Yes |
| 224-396 | BARRINGTON | 6529 | 2021-08-03 | Yes |
| 224-397 | ALGONQUIN | 6529 | 2021-08-03 | Yes |
| 224-398 | ARLIGTNHTS | 318J | 2021-08-10 | Yes |
| 224-399 | WAUKEGAN | 9329 | 2006-01-04 | Yes |
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.