NumberResearchRecent thousands-block assignments
9 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/20/2026
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 |
|---|---|---|---|---|---|---|---|
| 2016-03-09 | 515-454-2XXX | 2000–2999 | Assigned | ONVOY, LLC - IA | 221F | STUART | IA |
| 2016-03-09 | 515-497-8XXX | 8000–8999 | Assigned | ONVOY, LLC - IA | 221F | PRAIRIE CY | IA |
| 2016-03-09 | 515-497-9XXX | 9000–9999 | Assigned | ONVOY, LLC - IA | 221F | PRAIRIE CY | IA |
| 2016-03-09 | 515-517-1XXX | 1000–1999 | Assigned | ONVOY, LLC - IA | 221F | EARLHAM | IA |
| 2016-03-09 | 515-517-2XXX | 2000–2999 | Assigned | ONVOY, LLC - IA | 221F | EARLHAM | IA |
| 2016-03-09 | 515-519-7XXX | 7000–7999 | Assigned | ONVOY, LLC - IA | 221F | RUNNELLS | IA |
| 2016-03-09 | 515-519-8XXX | 8000–8999 | Assigned | ONVOY, LLC - IA | 221F | RUNNELLS | IA |
| 2016-03-09 | 515-585-1XXX | 1000–1999 | Assigned | ONVOY, LLC - IA | 221F | VAN METER | IA |
| 2016-03-09 | 515-585-2XXX | 2000–2999 | Assigned | ONVOY, LLC - IA | 221F | VAN METER | IA |
| 2016-03-09 | 515-606-0XXX | 0000–0999 | Assigned | ONVOY, LLC - IA | 221F | WEBSTER CY | IA |
| 2016-03-09 | 515-606-1XXX | 1000–1999 | Assigned | ONVOY, LLC - IA | 221F | WEBSTER CY | IA |
| 2016-03-09 | 515-717-6XXX | 6000–6999 | Assigned | ONVOY, LLC - IA | 221F | DALLAS CTR | IA |
| 2016-03-09 | 515-717-8XXX | 8000–8999 | Assigned | ONVOY, LLC - IA | 221F | DALLAS CTR | IA |
| 2016-03-09 | 515-808-5XXX | 5000–5999 | Assigned | ONVOY, LLC - IA | 221F | INDIANOLA | IA |
| 2016-03-09 | 515-808-7XXX | 7000–7999 | Assigned | ONVOY, LLC - IA | 221F | INDIANOLA | IA |
| 2016-03-09 | 515-827-0XXX | 0000–0999 | Assigned | ONVOY, LLC - IA | 221F | JEWELL | IA |
| 2016-03-09 | 515-827-2XXX | 2000–2999 | Assigned | ONVOY, LLC - IA | 221F | JEWELL | IA |
| 2016-03-08 | 515-603-0XXX | 0000–0999 | Assigned | ONVOY, LLC - IA | 221F | EAGLEGROVE | IA |
| 2016-03-08 | 515-603-1XXX | 1000–1999 | Assigned | ONVOY, LLC - IA | 221F | EAGLEGROVE | IA |
| 2016-03-02 | 515-325-4XXX | 4000–4999 | Assigned | ONVOY, LLC - IA | 221F | BLAIRSBURG | IA |
| 2016-03-02 | 515-325-8XXX | 8000–8999 | Assigned | ONVOY, LLC - IA | 221F | BLAIRSBURG | IA |
| 2016-03-02 | 515-776-6XXX | 6000–6999 | Assigned | UNITED STATES CELLULAR - IA | 6266 | DES MOINES | IA |
| 2016-02-29 | 515-368-7XXX | 7000–7999 | Assigned | ONVOY, LLC - IA | 221F | HUMBOLDT | IA |
| 2016-02-29 | 515-890-6XXX | 6000–6999 | Assigned | ONVOY, LLC - IA | 221F | HUMBOLDT | IA |
| 2016-02-24 | 515-298-5XXX | 5000–5999 | Assigned | ONVOY, LLC - IA | 221F | BOONE | IA |
| 2016-02-24 | 515-298-6XXX | 6000–6999 | Assigned | ONVOY, LLC - IA | 221F | BOONE | IA |
| 2016-02-24 | 515-705-5XXX | 5000–5999 | Assigned | ONVOY, LLC - IA | 221F | WINTERSET | IA |
| 2016-02-24 | 515-705-6XXX | 6000–6999 | Assigned | ONVOY, LLC - IA | 221F | WINTERSET | IA |
| 2016-02-16 | 515-686-2XXX | 2000–2999 | Assigned | ONVOY, LLC - IA | 221F | AMES | IA |
| 2016-02-16 | 515-686-3XXX | 3000–3999 | Assigned | ONVOY, LLC - IA | 221F | AMES | IA |
| 2016-02-09 | 515-805-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - IA | 9877 | DES MOINES | IA |
| 2016-02-09 | 515-805-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - IA | 9877 | DES MOINES | IA |
| 2016-01-22 | 515-776-4XXX | 4000–4999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | DES MOINES | IA |
| 2016-01-15 | 515-776-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA | 6570 | DES MOINES | IA |
| 2016-01-15 | 515-776-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA | 6570 | DES MOINES | IA |
| 2016-01-15 | 515-776-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA | 6570 | DES MOINES | IA |
| 2016-01-11 | 515-336-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA | 6570 | DES MOINES | IA |
| 2015-12-29 | 515-206-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - IA | 9877 | FORT DODGE | IA |
| 2015-12-28 | 515-336-3XXX | 3000–3999 | Assigned | UNITED STATES CELLULAR - IA | 6266 | DES MOINES | IA |
| 2015-12-17 | 515-219-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | ADEL | IA |
| 2015-12-17 | 515-808-4XXX | 4000–4999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | INDIANOLA | IA |
| 2015-12-08 | 515-336-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA | 6570 | DES MOINES | IA |
| 2015-12-08 | 515-336-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA | 6570 | DES MOINES | IA |
| 2015-12-08 | 515-336-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA | 6570 | DES MOINES | IA |
| 2015-12-08 | 515-336-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA | 6570 | DES MOINES | IA |
| 2015-12-01 | 515-478-6XXX | 6000–6999 | Assigned | UNITED STATES CELLULAR - IA | 6266 | ADEL | IA |
| 2015-11-25 | 515-499-9XXX | 9000–9999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - IA | 9877 | DES MOINES | IA |
| 2015-11-25 | 515-639-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - IA | 9877 | DES MOINES | IA |
| 2015-11-25 | 515-985-0XXX | 0000–0999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - IA | 9877 | DES MOINES | IA |
| 2015-11-24 | 515-499-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | DES MOINES | IA |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.