All assignees
290 prefixes in 872 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 872-200 | CHICGOZN06 | 6529 | 2023-07-26 | Yes |
| 872-201 | CHICGOZN07 | 6333 | 2009-10-16 | Yes |
| 872-202 | CHICGOZN01 | 6534 | 2012-01-11 | Yes |
| 872-203 | CHICGOZN02 | 984E | 2012-02-10 | Yes |
| 872-204 | CHICGOZN08 | 224C | 2015-11-23 | Yes |
| 872-205 | CHICGOZN06 | 984E | 2012-02-23 | Yes |
| 872-206 | CHICGOZN04 | 318J | 2012-03-27 | Yes |
| 872-207 | CHICGOZN08 | 984E | 2012-09-21 | Yes |
| 872-208 | CHICGOZN02 | 508J | 2012-06-25 | Yes |
| 872-209 | CHICGOZN08 | 6529 | 2012-09-28 | Yes |
| 872-210 | CHICGOZN04 | 6529 | 2013-04-18 | Yes |
| 872-211 | XXXXXXXXXX | MULT | — | — |
| 872-212 | CHICGOZN07 | 6529 | 2011-07-08 | Yes |
| 872-213 | CHICGOZN02 | 224C | — | Yes |
| 872-214 | CHICGOZN06 | 6529 | 2013-04-18 | Yes |
| 872-215 | CHICGOZN07 | 6333 | 2013-02-19 | Yes |
| 872-216 | CHICGOZN02 | 984E | 2010-02-25 | Yes |
| 872-217 | CHICGOZN08 | 224C | 2023-06-15 | Yes |
| 872-218 | CHICGOZN06 | 6529 | 2013-05-24 | Yes |
| 872-219 | CHICGOZN07 | 224C | 2015-11-23 | Yes |
| 872-220 | CHICGOZN03 | 6529 | 2011-05-18 | Yes |
| 872-221 | CHICGOZN09 | 984E | 2010-05-14 | Yes |
| 872-222 | CHICGOZN03 | 6534 | 2009-08-07 | Yes |
| 872-223 | CHICGOZN03 | 6529 | 2011-04-21 | Yes |
| 872-224 | CHICGOZN06 | 224C | 2023-07-13 | Yes |
| 872-225 | CHICGOZN01 | 224C | 2011-09-07 | Yes |
| 872-226 | CHICGOZN03 | 6529 | 2011-07-19 | Yes |
| 872-227 | CHICGOZN03 | 6529 | 2013-06-26 | Yes |
| 872-228 | CHICGOZN09 | 6534 | 2009-12-28 | Yes |
| 872-229 | CHICGOZN08 | 6529 | 2014-03-17 | Yes |
| 872-230 | CHICGOZN03 | 6529 | 2011-06-13 | Yes |
| 872-231 | CHICGOZN05 | 224C | 2015-12-23 | Yes |
| 872-232 | CHICGOZN03 | 6529 | 2011-06-15 | Yes |
| 872-233 | CHICGOZN04 | 6529 | 2011-06-20 | Yes |
| 872-234 | CHICGOZN10 | 6529 | 2013-06-27 | Yes |
| 872-235 | CHICGOZN02 | 6529 | 2013-06-26 | Yes |
| 872-236 | CHICGOZN08 | 6529 | 2013-06-28 | Yes |
| 872-237 | CHICGOZN03 | 6529 | 2011-07-27 | Yes |
| 872-238 | CHICGOZN08 | 6529 | 2013-06-28 | Yes |
| 872-239 | CHICGOZN06 | 6529 | 2013-06-03 | Yes |
| 872-240 | CHICGOZN03 | 6333 | 2013-02-11 | Yes |
| 872-241 | CHICGOZN02 | 7136 | 2014-08-15 | Yes |
| 872-242 | CHICGOZN04 | 5562 | 2014-07-01 | Yes |
| 872-243 | CHICGOZN03 | 6529 | 2013-06-26 | Yes |
| 872-244 | CHICGOZN07 | 516C | 2011-07-01 | Yes |
| 872-245 | CHICGOZN04 | 597F | 2019-01-24 | Yes |
| 872-246 | CHICGOZN06 | 7136 | 2019-02-13 | Yes |
| 872-247 | CHICGOZN07 | 9329 | 2010-01-07 | Yes |
| 872-248 | CHICGOZN08 | 984E | 2019-05-23 | Yes |
| 872-249 | CHICGOZN01 | 6115 | 2019-09-12 | Yes |
| 872-250 | CHICGOZN01 | 224C | 2019-11-04 | Yes |
| 872-251 | CHICGOZN08 | 6529 | 2014-03-17 | Yes |
| 872-252 | CHICGOZN08 | 6529 | 2014-03-17 | Yes |
| 872-253 | CHICGOZN08 | 224C | 2012-11-20 | Yes |
| 872-254 | CHICGOZN08 | 6529 | 2014-05-15 | Yes |
| 872-255 | CHICGOZN04 | 197D | 2019-11-29 | Yes |
| 872-256 | CHICGOZN05 | 984E | 2014-05-05 | Yes |
| 872-257 | CHICGOZN05 | 6534 | 2019-12-12 | Yes |
| 872-258 | CHICGOZN01 | 6529 | 2020-01-08 | Yes |
| 872-259 | CHICGOZN01 | 6115 | 2020-01-09 | Yes |
| 872-260 | CHICGOZN01 | 6534 | 2020-01-09 | Yes |
| 872-261 | CHICGOZN10 | 6534 | 2020-03-13 | Yes |
| 872-262 | CHICGOZN09 | 7421 | 2020-03-19 | Yes |
| 872-263 | CHICGOZN01 | 6115 | 2020-05-14 | Yes |
| 872-264 | CHICGOZN01 | 984E | 2020-05-18 | Yes |
| 872-265 | CHICGOZN10 | 6534 | 2020-06-08 | Yes |
| 872-266 | CHICGOZN08 | 224C | 2017-08-22 | Yes |
| 872-267 | CHICGOZN08 | 516C | 2014-10-07 | Yes |
| 872-268 | CHICGOZN01 | 321J | 2020-08-11 | Yes |
| 872-269 | CHICGOZN08 | 984E | 2020-08-26 | Yes |
| 872-270 | CHICGOZN01 | 224C | 2021-01-08 | Yes |
| 872-271 | CHICGOZN03 | 6534 | — | Yes |
| 872-272 | CHICGOZN04 | 495J | 2020-09-09 | Yes |
| 872-273 | CHICGOZN03 | 197D | 2020-09-17 | Yes |
| 872-274 | CHICGOZN04 | 515J | 2020-10-02 | Yes |
| 872-275 | CHICGOZN01 | 939H | — | Yes |
| 872-276 | CHICGOZN06 | 6333 | 2014-09-30 | Yes |
| 872-277 | CHICGOZN05 | 984E | 2020-10-26 | Yes |
| 872-278 | CHICGOZN01 | 224C | 2020-03-31 | Yes |
| 872-279 | CHICGOZN01 | 534J | 2021-01-18 | Yes |
| 872-280 | CHICGOZN04 | 939H | — | Yes |
| 872-281 | CHICGOZN06 | 516C | 2014-10-06 | Yes |
| 872-282 | CHICGOZN01 | 224C | 2020-04-16 | Yes |
| 872-283 | CHICGOZN07 | 624H | 2021-03-30 | Yes |
| 872-284 | CHICGOZN05 | 321J | 2021-05-19 | Yes |
| 872-285 | CHICGOZN08 | 224C | 2021-07-14 | Yes |
| 872-286 | CHICGOZN09 | 984E | 2021-07-28 | Yes |
| 872-287 | CHICGOZN03 | 6529 | 2021-08-03 | Yes |
| 872-288 | CHICGOZN01 | 622J | 2021-09-10 | Yes |
| 872-289 | CHICGOZN01 | 7136 | 2021-09-20 | Yes |
| 872-290 | CHICGOZN10 | 984E | 2021-09-27 | Yes |
| 872-291 | CHICGOZN08 | 6529 | 2021-09-29 | Yes |
| 872-292 | CHICGOZN10 | 6529 | 2021-09-29 | Yes |
| 872-293 | CHICGOZN03 | 6529 | 2021-10-11 | Yes |
| 872-294 | CHICGOZN04 | 6529 | 2021-10-11 | Yes |
| 872-295 | CHICGOZN03 | 984E | 2021-10-28 | Yes |
| 872-296 | CHICGOZN03 | 224C | 2021-10-28 | Yes |
| 872-297 | CHICGOZN07 | 6529 | 2021-11-04 | Yes |
| 872-298 | CHICGOZN01 | 073H | — | Yes |
| 872-299 | CHICGOZN01 | 829J | 2022-03-14 | 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.