NumberResearchRecent thousands-block assignments
2 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 623
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 |
|---|---|---|---|---|---|---|---|
| 2022-10-13 | 623-291-6XXX | 6000–6999 | Assigned | COMMIO, LLC | 939H | PHOENIX | AZ |
| 2022-10-13 | 623-291-7XXX | 7000–7999 | Assigned | COMMIO, LLC | 939H | PHOENIX | AZ |
| 2022-10-04 | 623-352-0XXX | 0000–0999 | Assigned | ONVOY, LLC - AZ | 630E | PHOENIX | AZ |
| 2022-10-04 | 623-352-1XXX | 1000–1999 | Assigned | ONVOY, LLC - AZ | 630E | PHOENIX | AZ |
| 2022-10-04 | 623-352-2XXX | 2000–2999 | Assigned | ONVOY, LLC - AZ | 630E | PHOENIX | AZ |
| 2022-10-04 | 623-352-3XXX | 3000–3999 | Assigned | ONVOY, LLC - AZ | 630E | PHOENIX | AZ |
| 2022-10-04 | 623-352-4XXX | 4000–4999 | Assigned | ONVOY, LLC - AZ | 630E | PHOENIX | AZ |
| 2022-10-04 | 623-352-5XXX | 5000–5999 | Assigned | ONVOY, LLC - AZ | 630E | PHOENIX | AZ |
| 2022-10-04 | 623-352-6XXX | 6000–6999 | Assigned | ONVOY, LLC - AZ | 630E | PHOENIX | AZ |
| 2022-10-04 | 623-352-7XXX | 7000–7999 | Assigned | ONVOY, LLC - AZ | 630E | PHOENIX | AZ |
| 2022-10-04 | 623-352-8XXX | 8000–8999 | Assigned | ONVOY, LLC - AZ | 630E | PHOENIX | AZ |
| 2022-10-04 | 623-352-9XXX | 9000–9999 | Assigned | ONVOY, LLC - AZ | 630E | PHOENIX | AZ |
| 2022-09-23 | 623-301-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | PHOENIX | AZ |
| 2022-09-23 | 623-301-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | PHOENIX | AZ |
| 2022-09-23 | 623-301-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | PHOENIX | AZ |
| 2022-09-23 | 623-301-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | PHOENIX | AZ |
| 2022-09-21 | 623-291-1XXX | 1000–1999 | Assigned | NUSO, LLC | 732J | PHOENIX | AZ |
| 2022-09-20 | 623-320-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | PHOENIX | AZ |
| 2022-09-20 | 623-320-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | PHOENIX | AZ |
| 2022-09-20 | 623-320-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | PHOENIX | AZ |
| 2022-09-20 | 623-320-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | PHOENIX | AZ |
| 2022-09-20 | 623-320-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | PHOENIX | AZ |
| 2022-09-16 | 623-286-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | PHOENIX | AZ |
| 2022-09-16 | 623-286-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | PHOENIX | AZ |
| 2022-09-16 | 623-286-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | PHOENIX | AZ |
| 2022-09-16 | 623-445-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | PHOENIX | AZ |
| 2022-09-16 | 623-707-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | PHOENIX | AZ |
| 2022-09-01 | 623-343-0XXX | 0000–0999 | Assigned | ONVOY, LLC - AZ | 630E | PHOENIX | AZ |
| 2022-09-01 | 623-343-1XXX | 1000–1999 | Assigned | ONVOY, LLC - AZ | 630E | PHOENIX | AZ |
| 2022-09-01 | 623-343-2XXX | 2000–2999 | Assigned | ONVOY, LLC - AZ | 630E | PHOENIX | AZ |
| 2022-09-01 | 623-343-3XXX | 3000–3999 | Assigned | ONVOY, LLC - AZ | 630E | PHOENIX | AZ |
| 2022-09-01 | 623-343-4XXX | 4000–4999 | Assigned | ONVOY, LLC - AZ | 630E | PHOENIX | AZ |
| 2022-09-01 | 623-343-5XXX | 5000–5999 | Assigned | ONVOY, LLC - AZ | 630E | PHOENIX | AZ |
| 2022-09-01 | 623-343-6XXX | 6000–6999 | Assigned | ONVOY, LLC - AZ | 630E | PHOENIX | AZ |
| 2022-09-01 | 623-343-7XXX | 7000–7999 | Assigned | ONVOY, LLC - AZ | 630E | PHOENIX | AZ |
| 2022-09-01 | 623-343-8XXX | 8000–8999 | Assigned | ONVOY, LLC - AZ | 630E | PHOENIX | AZ |
| 2022-09-01 | 623-343-9XXX | 9000–9999 | Assigned | ONVOY, LLC - AZ | 630E | PHOENIX | AZ |
| 2022-09-01 | 623-462-0XXX | 0000–0999 | Assigned | ONVOY, LLC - AZ | 630E | PHOENIX | AZ |
| 2022-09-01 | 623-462-1XXX | 1000–1999 | Assigned | ONVOY, LLC - AZ | 630E | PHOENIX | AZ |
| 2022-09-01 | 623-462-2XXX | 2000–2999 | Assigned | ONVOY, LLC - AZ | 630E | PHOENIX | AZ |
| 2022-09-01 | 623-462-3XXX | 3000–3999 | Assigned | ONVOY, LLC - AZ | 630E | PHOENIX | AZ |
| 2022-09-01 | 623-462-4XXX | 4000–4999 | Assigned | ONVOY, LLC - AZ | 630E | PHOENIX | AZ |
| 2022-09-01 | 623-462-5XXX | 5000–5999 | Assigned | ONVOY, LLC - AZ | 630E | PHOENIX | AZ |
| 2022-09-01 | 623-462-6XXX | 6000–6999 | Assigned | ONVOY, LLC - AZ | 630E | PHOENIX | AZ |
| 2022-09-01 | 623-462-7XXX | 7000–7999 | Assigned | ONVOY, LLC - AZ | 630E | PHOENIX | AZ |
| 2022-09-01 | 623-462-8XXX | 8000–8999 | Assigned | ONVOY, LLC - AZ | 630E | PHOENIX | AZ |
| 2022-09-01 | 623-462-9XXX | 9000–9999 | Assigned | ONVOY, LLC - AZ | 630E | PHOENIX | AZ |
| 2022-08-31 | 623-324-0XXX | 0000–0999 | Assigned | ONVOY SPECTRUM, LLC | 624H | PHOENIX | AZ |
| 2022-08-31 | 623-324-1XXX | 1000–1999 | Assigned | ONVOY SPECTRUM, LLC | 624H | PHOENIX | AZ |
| 2022-08-31 | 623-324-2XXX | 2000–2999 | Assigned | ONVOY SPECTRUM, LLC | 624H | PHOENIX | AZ |
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.