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41 prefixes in 616 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 616-201 | GRANDHAVEN | 543C | 2016-02-24 | Yes |
| 616-207 | LOWELL | 543C | 2016-03-02 | Yes |
| 616-221 | GRAND RPDS | 543C | 2023-06-26 | Yes |
| 616-253 | MOLINE | 543C | 2013-03-16 | Yes |
| 616-282 | LOWELL | 543C | 2021-06-15 | Yes |
| 616-297 | LOWELL | 543C | 2023-07-06 | Yes |
| 616-305 | BYRON CTR | 543C | 2023-07-14 | Yes |
| 616-314 | ADA | 543C | 2021-07-20 | Yes |
| 616-319 | LOWELL | 543C | 2010-12-23 | Yes |
| 616-323 | GRAND RPDS | 543C | 2012-10-22 | Yes |
| 616-326 | ROCKFORD | 543C | 2011-08-11 | Yes |
| 616-333 | GRAND RPDS | 543C | 2015-08-17 | Yes |
| 616-342 | HUDSONVL | 543C | 2021-10-29 | Yes |
| 616-344 | HOLLAND | 543C | — | Yes |
| 616-345 | BYRON CTR | 543C | — | Yes |
| 616-346 | HOLLAND | 543C | — | Yes |
| 616-354 | GREENVILLE | 543C | 2021-11-18 | Yes |
| 616-360 | DUTTON | 543C | 2023-07-28 | Yes |
| 616-369 | GRAND RPDS | 543C | 2015-11-23 | Yes |
| 616-372 | COOPERSVL | 543C | 2022-01-21 | Yes |
| 616-404 | CASNOVIA | 543C | 2014-10-06 | Yes |
| 616-420 | ALTO | 543C | 2009-02-06 | Yes |
| 616-438 | GRAND RPDS | 543C | 2010-02-16 | Yes |
| 616-441 | LAKEODESSA | 543C | 2015-08-18 | Yes |
| 616-580 | DORR | 543C | 2016-03-03 | Yes |
| 616-585 | CEDAR SPG | 543C | 2018-08-22 | Yes |
| 616-600 | GRAND RPDS | 543C | 2017-10-04 | Yes |
| 616-612 | GRANDHAVEN | 543C | 2020-06-24 | Yes |
| 616-616 | GRAND RPDS | 543C | 2022-09-27 | Yes |
| 616-625 | CONKLIN | 543C | 2016-06-30 | Yes |
| 616-626 | BYRON CTR | 543C | — | Yes |
| 616-726 | GRAND RPDS | 543C | — | Yes |
| 616-727 | ADA | 543C | 2016-02-12 | Yes |
| 616-737 | SARANAC | 543C | 2016-03-04 | Yes |
| 616-739 | CLARKSVL | 543C | — | Yes |
| 616-747 | ROCKFORD | 543C | 2016-02-29 | Yes |
| 616-779 | GRATTAN | 543C | 2016-03-03 | Yes |
| 616-796 | HOLLAND | 543C | — | Yes |
| 616-888 | GRAND RPDS | 543C | 2015-06-16 | Yes |
| 616-947 | MARNE | 543C | 2008-10-28 | Yes |
| 616-965 | GRAND RPDS | 543C | 2010-04-02 | 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.