NumberResearchRecent thousands-block assignments
9 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026
Most carrier growth happens here, not at the prefix level: under number pooling, carriers receive individual 1,000-number blocks (e.g. 626-470-0XXX) within already-assigned prefixes. Assignments are initial assignments — the current serving carrier of individual numbers may differ due to portability.
Most active assignees, last 30 days — NPA 515
New assignments by month
Sep 2026
Aug 2026
Jul 2026
Jun 2026
May 2026
Apr 2026
Mar 2026
Feb 2026
Jan 2026
Dec 2025
Nov 2025
Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2022-11-25 | 515-762-4XXX | 4000–4999 | Assigned | ONVOY, LLC - IA | 221F | RUNNELLS | IA |
| 2022-11-22 | 515-916-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | AMES | IA |
| 2022-11-22 | 515-916-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | AMES | IA |
| 2022-11-22 | 515-916-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | AMES | IA |
| 2022-11-22 | 515-916-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | AMES | IA |
| 2022-11-17 | 515-582-0XXX | 0000–0999 | Assigned | METROPCS, INC. | 5562 | MADRID | IA |
| 2022-11-17 | 515-916-5XXX | 5000–5999 | Assigned | ONVOY, LLC - IA | 221F | AMES | IA |
| 2022-11-09 | 515-588-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - IA | 9877 | EAGLEGROVE | IA |
| 2022-11-07 | 515-391-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - IA | 9877 | JEFFERSON | IA |
| 2022-11-07 | 515-550-6XXX | 6000–6999 | Assigned | ONVOY, LLC - IA | 221F | BRADGATE | IA |
| 2022-11-07 | 515-659-9XXX | 9000–9999 | Assigned | METROPCS, INC. | 5562 | HUXLEY | IA |
| 2022-11-07 | 515-788-9XXX | 9000–9999 | Assigned | UNITED STATES CELLULAR - IA | 6266 | PERRY | IA |
| 2022-10-21 | 515-858-4XXX | 4000–4999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | DES MOINES | IA |
| 2022-10-20 | 515-622-3XXX | 3000–3999 | Assigned | ONVOY, LLC - IA | 221F | GILMORE CY | IA |
| 2022-10-20 | 515-862-2XXX | 2000–2999 | Assigned | ONVOY, LLC - IA | 221F | STORY CITY | IA |
| 2022-10-20 | 515-862-8XXX | 8000–8999 | Assigned | ONVOY, LLC - IA | 221F | STORY CITY | IA |
| 2022-10-19 | 515-858-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | DES MOINES | IA |
| 2022-10-19 | 515-858-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | DES MOINES | IA |
| 2022-10-19 | 515-858-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | DES MOINES | IA |
| 2022-10-19 | 515-858-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | DES MOINES | IA |
| 2022-10-13 | 515-370-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | JEFFERSON | IA |
| 2022-10-12 | 515-671-4XXX | 4000–4999 | Assigned | ONVOY SPECTRUM, LLC | 624H | DES MOINES | IA |
| 2022-10-12 | 515-671-5XXX | 5000–5999 | Assigned | ONVOY SPECTRUM, LLC | 624H | DES MOINES | IA |
| 2022-10-12 | 515-671-7XXX | 7000–7999 | Assigned | ONVOY SPECTRUM, LLC | 624H | DES MOINES | IA |
| 2022-10-12 | 515-671-8XXX | 8000–8999 | Assigned | ONVOY SPECTRUM, LLC | 624H | DES MOINES | IA |
| 2022-10-12 | 515-671-9XXX | 9000–9999 | Assigned | ONVOY SPECTRUM, LLC | 624H | DES MOINES | IA |
| 2022-10-07 | 515-351-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA | 6570 | GOWRIE | IA |
| 2022-09-30 | 515-515-0XXX | 0000–0999 | Assigned | ONVOY, LLC - IA | 221F | FORT DODGE | IA |
| 2022-09-30 | 515-515-1XXX | 1000–1999 | Assigned | ONVOY, LLC - IA | 221F | FORT DODGE | IA |
| 2022-09-30 | 515-515-2XXX | 2000–2999 | Assigned | ONVOY, LLC - IA | 221F | FORT DODGE | IA |
| 2022-09-30 | 515-515-3XXX | 3000–3999 | Assigned | ONVOY, LLC - IA | 221F | FORT DODGE | IA |
| 2022-09-30 | 515-515-4XXX | 4000–4999 | Assigned | ONVOY, LLC - IA | 221F | FORT DODGE | IA |
| 2022-09-30 | 515-515-5XXX | 5000–5999 | Assigned | ONVOY, LLC - IA | 221F | FORT DODGE | IA |
| 2022-09-30 | 515-515-6XXX | 6000–6999 | Assigned | ONVOY, LLC - IA | 221F | FORT DODGE | IA |
| 2022-09-30 | 515-515-7XXX | 7000–7999 | Assigned | ONVOY, LLC - IA | 221F | FORT DODGE | IA |
| 2022-09-30 | 515-515-8XXX | 8000–8999 | Assigned | ONVOY, LLC - IA | 221F | FORT DODGE | IA |
| 2022-09-30 | 515-515-9XXX | 9000–9999 | Assigned | ONVOY, LLC - IA | 221F | FORT DODGE | IA |
| 2022-09-28 | 515-435-5XXX | 5000–5999 | Assigned | ONVOY, LLC - IA | 221F | ROLAND | IA |
| 2022-09-16 | 515-415-5XXX | 5000–5999 | Assigned | COMMIO, LLC | 939H | DES MOINES | IA |
| 2022-09-16 | 515-916-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | AMES | IA |
| 2022-09-16 | 515-916-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | AMES | IA |
| 2022-09-15 | 515-337-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | AMES | IA |
| 2022-09-06 | 515-655-7XXX | 7000–7999 | Assigned | ONVOY, LLC - IA | 221F | DES MOINES | IA |
| 2022-09-06 | 515-655-8XXX | 8000–8999 | Assigned | ONVOY, LLC - IA | 221F | DES MOINES | IA |
| 2022-09-01 | 515-391-8XXX | 8000–8999 | Assigned | METROPCS, INC. | 5562 | JEFFERSON | IA |
| 2022-08-29 | 515-902-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | HUMBOLDT | IA |
| 2022-08-26 | 515-417-5XXX | 5000–5999 | Assigned | ONVOY, LLC - IA | 221F | FORT DODGE | IA |
| 2022-08-26 | 515-904-0XXX | 0000–0999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - IA | 8344 | DES MOINES | IA |
| 2022-08-04 | 515-912-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - IA | 985E | INDIANOLA | IA |
| 2022-08-03 | 515-303-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - IA | 985E | INDIANOLA | IA |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.