NumberResearchRecent thousands-block assignments
1 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/21/2026
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 209
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 |
|---|---|---|---|---|---|---|---|
| 2015-09-16 | 209-637-5XXX | 5000–5999 | Assigned | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | TRACY | CA |
| 2015-09-11 | 209-285-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | MERCED | CA |
| 2015-09-11 | 209-285-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | MERCED | CA |
| 2015-09-11 | 209-285-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | MERCED | CA |
| 2015-09-11 | 209-561-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | STOCKTON | CA |
| 2015-09-11 | 209-561-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | STOCKTON | CA |
| 2015-09-11 | 209-561-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | STOCKTON | CA |
| 2015-09-11 | 209-561-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | STOCKTON | CA |
| 2015-09-11 | 209-561-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | STOCKTON | CA |
| 2015-09-11 | 209-561-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | STOCKTON | CA |
| 2015-09-08 | 209-270-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | LOS BANOS | CA |
| 2015-09-08 | 209-281-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | MODESTO | CA |
| 2015-09-08 | 209-281-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | MODESTO | CA |
| 2015-09-08 | 209-289-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | MODESTO | CA |
| 2015-09-08 | 209-400-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | LODI | CA |
| 2015-09-08 | 209-635-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | ATWATER | CA |
| 2015-09-08 | 209-635-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | ATWATER | CA |
| 2015-09-08 | 209-635-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | ATWATER | CA |
| 2015-09-03 | 209-701-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | ESCALON | CA |
| 2015-08-25 | 209-452-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | LODI | CA |
| 2015-08-20 | 209-635-5XXX | 5000–5999 | Assigned | COMCAST PHONE OF CALIFORNIA, LLC | 394L | ATWATER | CA |
| 2015-08-06 | 209-881-5XXX | 5000–5999 | Assigned | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | KNIGHTFRRY | CA |
| 2015-08-06 | 209-894-4XXX | 4000–4999 | Assigned | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | PATTERSON | CA |
| 2015-08-05 | 209-843-2XXX | 2000–2999 | Assigned | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | GALT | CA |
| 2015-08-03 | 209-281-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | MODESTO | CA |
| 2015-08-03 | 209-281-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | MODESTO | CA |
| 2015-08-03 | 209-281-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | MODESTO | CA |
| 2015-08-03 | 209-281-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | MODESTO | CA |
| 2015-08-03 | 209-281-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | MODESTO | CA |
| 2015-07-31 | 209-448-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | HUGHSON | CA |
| 2015-07-31 | 209-635-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | ATWATER | CA |
| 2015-07-31 | 209-635-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | ATWATER | CA |
| 2015-07-31 | 209-635-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | ATWATER | CA |
| 2015-07-30 | 209-291-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | MERCED | CA |
| 2015-07-30 | 209-291-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | MERCED | CA |
| 2015-07-24 | 209-636-0XXX | 0000–0999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | STOCKTON | CA |
| 2015-07-21 | 209-273-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | JACKSON | CA |
| 2015-07-21 | 209-497-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | MODESTO | CA |
| 2015-07-16 | 209-772-4XXX | 4000–4999 | Assigned | COMCAST PHONE OF CALIFORNIA, LLC | 394L | VALLEY SPG | CA |
| 2015-07-15 | 209-328-1XXX | 1000–1999 | Assigned | COMCAST PHONE OF CALIFORNIA, LLC | 394L | MANTECA | CA |
| 2015-07-13 | 209-636-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | STOCKTON | CA |
| 2015-07-13 | 209-636-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | STOCKTON | CA |
| 2015-07-07 | 209-291-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | MERCED | CA |
| 2015-07-06 | 209-253-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | RIPON | CA |
| 2015-07-06 | 209-398-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | LIVINGSTON | CA |
| 2015-07-06 | 209-502-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | RIVERBANK | CA |
| 2015-07-06 | 209-677-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SNRA JUNO | CA |
| 2015-07-06 | 209-701-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | ESCALON | CA |
| 2015-07-06 | 209-764-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | OAKDALE | CA |
| 2015-07-06 | 209-895-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PATTERSON | CA |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/21/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.