NumberResearchRecent thousands-block assignments
31 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/22/2026
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 657
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 |
|---|---|---|---|---|---|---|---|
| 2022-01-13 | 657-639-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | HUNTITNBCH | CA |
| 2022-01-13 | 657-639-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | HUNTITNBCH | CA |
| 2022-01-13 | 657-639-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | HUNTITNBCH | CA |
| 2022-01-13 | 657-639-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | HUNTITNBCH | CA |
| 2022-01-13 | 657-639-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | HUNTITNBCH | CA |
| 2022-01-13 | 657-639-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | HUNTITNBCH | CA |
| 2022-01-13 | 657-639-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | HUNTITNBCH | CA |
| 2022-01-13 | 657-639-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | HUNTITNBCH | CA |
| 2022-01-13 | 657-688-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | PLACENTIA | CA |
| 2022-01-12 | 657-832-4XXX | 4000–4999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | SILVERADO | CA |
| 2022-01-11 | 657-547-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | HUNTITNBCH | CA |
| 2022-01-11 | 657-547-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | HUNTITNBCH | CA |
| 2022-01-11 | 657-547-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | HUNTITNBCH | CA |
| 2022-01-11 | 657-547-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | HUNTITNBCH | CA |
| 2022-01-11 | 657-547-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | HUNTITNBCH | CA |
| 2022-01-11 | 657-547-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | HUNTITNBCH | CA |
| 2022-01-11 | 657-547-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | HUNTITNBCH | CA |
| 2022-01-11 | 657-547-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | HUNTITNBCH | CA |
| 2022-01-11 | 657-547-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | HUNTITNBCH | CA |
| 2022-01-11 | 657-547-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | HUNTITNBCH | CA |
| 2022-01-11 | 657-693-7XXX | 7000–7999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | SANTA ANA | CA |
| 2022-01-11 | 657-746-8XXX | 8000–8999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | WESTMINSTR | CA |
| 2022-01-11 | 657-767-8XXX | 8000–8999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | FULLERTON | CA |
| 2022-01-10 | 657-540-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | HUNTITNBCH | CA |
| 2022-01-10 | 657-540-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | HUNTITNBCH | CA |
| 2022-01-10 | 657-540-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | HUNTITNBCH | CA |
| 2022-01-10 | 657-543-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | SANTA ANA | CA |
| 2022-01-10 | 657-543-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | SANTA ANA | CA |
| 2022-01-10 | 657-543-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | SANTA ANA | CA |
| 2022-01-10 | 657-543-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | SANTA ANA | CA |
| 2022-01-10 | 657-543-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | SANTA ANA | CA |
| 2022-01-10 | 657-543-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | SANTA ANA | CA |
| 2022-01-10 | 657-543-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | SANTA ANA | CA |
| 2022-01-10 | 657-546-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | ANAHEIM | CA |
| 2022-01-10 | 657-546-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | ANAHEIM | CA |
| 2022-01-10 | 657-546-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | ANAHEIM | CA |
| 2022-01-10 | 657-546-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | ANAHEIM | CA |
| 2022-01-10 | 657-546-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | ANAHEIM | CA |
| 2022-01-10 | 657-546-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | ANAHEIM | CA |
| 2022-01-10 | 657-546-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | ANAHEIM | CA |
| 2022-01-10 | 657-546-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | ANAHEIM | CA |
| 2022-01-10 | 657-546-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | ANAHEIM | CA |
| 2022-01-10 | 657-546-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | ANAHEIM | CA |
| 2022-01-10 | 657-837-4XXX | 4000–4999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | BUENA PARK | CA |
| 2022-01-07 | 657-536-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | ANAHEIM | CA |
| 2022-01-07 | 657-536-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | ANAHEIM | CA |
| 2022-01-07 | 657-536-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | ANAHEIM | CA |
| 2022-01-07 | 657-536-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | ANAHEIM | CA |
| 2022-01-07 | 657-536-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | ANAHEIM | CA |
| 2022-01-07 | 657-536-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | ANAHEIM | CA |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/22/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.