NumberResearchRecent thousands-block assignments
5 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 520
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 |
|---|---|---|---|---|---|---|---|
| 2022-02-18 | 520-929-2XXX | 2000–2999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | WILLCOX | AZ |
| 2022-02-18 | 520-980-4XXX | 4000–4999 | Assigned | PEERLESS NETWORK OF ARIZONA, LLC - AZ | 579F | NOGALES | AZ |
| 2022-02-18 | 520-994-4XXX | 4000–4999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | SASABE | AZ |
| 2022-02-16 | 520-522-7XXX | 7000–7999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | CASABLANCA | AZ |
| 2022-02-16 | 520-966-3XXX | 3000–3999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | SILVERBELL | AZ |
| 2022-02-10 | 520-607-2XXX | 2000–2999 | Assigned | ONVOY, LLC - AZ | 630E | CASAGRANDE | AZ |
| 2022-02-10 | 520-980-8XXX | 8000–8999 | Assigned | ONVOY, LLC - AZ | 630E | NOGALES | AZ |
| 2022-02-06 | 520-592-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | NOGALES | AZ |
| 2022-02-06 | 520-592-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | NOGALES | AZ |
| 2022-02-06 | 520-592-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | NOGALES | AZ |
| 2022-02-06 | 520-630-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | WILLCOX | AZ |
| 2022-02-06 | 520-630-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | WILLCOX | AZ |
| 2022-02-06 | 520-630-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | WILLCOX | AZ |
| 2022-02-06 | 520-630-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | WILLCOX | AZ |
| 2022-02-06 | 520-630-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | WILLCOX | AZ |
| 2022-02-06 | 520-630-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | WILLCOX | AZ |
| 2022-01-25 | 520-567-9XXX | 9000–9999 | Assigned | ONVOY, LLC - AZ | 630E | HAYDEN | AZ |
| 2022-01-25 | 520-581-7XXX | 7000–7999 | Assigned | ONVOY, LLC - AZ | 630E | TOMBSTONE | AZ |
| 2022-01-25 | 520-581-8XXX | 8000–8999 | Assigned | ONVOY, LLC - AZ | 630E | TOMBSTONE | AZ |
| 2022-01-25 | 520-590-4XXX | 4000–4999 | Assigned | ONVOY, LLC - AZ | 630E | BISBEE | AZ |
| 2022-01-25 | 520-590-5XXX | 5000–5999 | Assigned | ONVOY, LLC - AZ | 630E | BISBEE | AZ |
| 2022-01-25 | 520-608-2XXX | 2000–2999 | Assigned | ONVOY, LLC - AZ | 630E | SAN MANUEL | AZ |
| 2022-01-25 | 520-608-3XXX | 3000–3999 | Assigned | ONVOY, LLC - AZ | 630E | SAN MANUEL | AZ |
| 2022-01-25 | 520-608-4XXX | 4000–4999 | Assigned | ONVOY, LLC - AZ | 630E | SAN MANUEL | AZ |
| 2022-01-25 | 520-608-5XXX | 5000–5999 | Assigned | ONVOY, LLC - AZ | 630E | SAN MANUEL | AZ |
| 2022-01-25 | 520-608-7XXX | 7000–7999 | Assigned | ONVOY, LLC - AZ | 630E | SAN MANUEL | AZ |
| 2022-01-25 | 520-699-2XXX | 2000–2999 | Assigned | ONVOY, LLC - AZ | 630E | SIERRAVIST | AZ |
| 2022-01-25 | 520-699-3XXX | 3000–3999 | Assigned | ONVOY, LLC - AZ | 630E | SIERRAVIST | AZ |
| 2022-01-25 | 520-772-3XXX | 3000–3999 | Assigned | ONVOY, LLC - AZ | 630E | SUPERIOR | AZ |
| 2022-01-25 | 520-772-4XXX | 4000–4999 | Assigned | ONVOY, LLC - AZ | 630E | SUPERIOR | AZ |
| 2022-01-25 | 520-772-9XXX | 9000–9999 | Assigned | PEERLESS NETWORK OF ARIZONA, LLC - AZ | 579F | SUPERIOR | AZ |
| 2022-01-24 | 520-630-9XXX | 9000–9999 | Assigned | PEERLESS NETWORK OF ARIZONA, LLC - AZ | 579F | WILLCOX | AZ |
| 2022-01-24 | 520-702-9XXX | 9000–9999 | Assigned | PEERLESS NETWORK OF ARIZONA, LLC - AZ | 579F | DOUGLAS | AZ |
| 2022-01-19 | 520-613-0XXX | 0000–0999 | Assigned | ONVOY, LLC - AZ | 630E | TUCSON | AZ |
| 2022-01-19 | 520-613-1XXX | 1000–1999 | Assigned | ONVOY, LLC - AZ | 630E | TUCSON | AZ |
| 2022-01-19 | 520-613-2XXX | 2000–2999 | Assigned | ONVOY, LLC - AZ | 630E | TUCSON | AZ |
| 2022-01-19 | 520-613-3XXX | 3000–3999 | Assigned | ONVOY, LLC - AZ | 630E | TUCSON | AZ |
| 2022-01-18 | 520-613-5XXX | 5000–5999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - AZ | 7217 | TUCSON | AZ |
| 2022-01-18 | 520-627-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | TUCSON | AZ |
| 2022-01-18 | 520-627-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | TUCSON | AZ |
| 2022-01-18 | 520-627-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | TUCSON | AZ |
| 2022-01-18 | 520-627-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | TUCSON | AZ |
| 2022-01-18 | 520-627-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | TUCSON | AZ |
| 2022-01-18 | 520-627-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | TUCSON | AZ |
| 2022-01-18 | 520-627-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | TUCSON | AZ |
| 2022-01-18 | 520-627-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | TUCSON | AZ |
| 2022-01-18 | 520-627-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | TUCSON | AZ |
| 2022-01-18 | 520-627-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | TUCSON | AZ |
| 2022-01-14 | 520-702-2XXX | 2000–2999 | Assigned | ONVOY, LLC - AZ | 630E | DOUGLAS | AZ |
| 2022-01-14 | 520-702-3XXX | 3000–3999 | Assigned | ONVOY, LLC - AZ | 630E | DOUGLAS | 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.