NumberResearchRecent thousands-block assignments
25 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 650
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 |
|---|---|---|---|---|---|---|---|
| 2008-09-30 | 650-754-5XXX | 5000–5999 | Assigned | ONVOY, LLC - CA | 649C | SSNFRNCSCO | CA |
| 2008-09-30 | 650-754-7XXX | 7000–7999 | Assigned | ONVOY, LLC - CA | 649C | SSNFRNCSCO | CA |
| 2008-09-17 | 650-730-5XXX | 5000–5999 | Assigned | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | SNCRL-BLMT | CA |
| 2008-09-09 | 650-513-1XXX | 1000–1999 | Assigned | COMCAST PHONE OF CALIFORNIA, LLC | 394L | SAN MATEO | CA |
| 2008-08-27 | 650-335-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | MT VIEW | CA |
| 2008-08-25 | 650-383-6XXX | 6000–6999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | LOS ALTOS | CA |
| 2008-08-19 | 650-393-7XXX | 7000–7999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | SAN MATEO | CA |
| 2008-08-19 | 650-739-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PALO ALTO | CA |
| 2008-08-18 | 650-520-2XXX | 2000–2999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | SAN MATEO | CA |
| 2008-08-12 | 650-550-3XXX | 3000–3999 | Assigned | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | SNFC JUNPR | CA |
| 2008-08-12 | 650-690-7XXX | 7000–7999 | Assigned | ONVOY, LLC - CA | 649C | PALO ALTO | CA |
| 2008-08-12 | 650-690-8XXX | 8000–8999 | Assigned | ONVOY, LLC - CA | 649C | PALO ALTO | CA |
| 2008-08-12 | 650-847-5XXX | 5000–5999 | Assigned | ONVOY, LLC - CA | 649C | PALO ALTO | CA |
| 2008-08-07 | 650-690-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | PALO ALTO | CA |
| 2008-08-05 | 650-393-8XXX | 8000–8999 | Assigned | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | SAN MATEO | CA |
| 2008-07-30 | 650-396-8XXX | 8000–8999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | MT VIEW | CA |
| 2008-07-30 | 650-729-3XXX | 3000–3999 | Assigned | AT&T ENTERPRISES, LLC | 516C | HALFMOONBY | CA |
| 2008-07-29 | 650-389-3XXX | 3000–3999 | Assigned | METROPCS, INC. | 5562 | SAN MATEO | CA |
| 2008-07-24 | 650-417-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | MT VIEW | CA |
| 2008-07-24 | 650-839-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | REDWOOD CY | CA |
| 2008-07-23 | 650-771-8XXX | 8000–8999 | Assigned | METROPCS, INC. | 5562 | REDWOOD CY | CA |
| 2008-07-11 | 650-763-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | SSNFRNCSCO | CA |
| 2008-07-11 | 650-763-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | SSNFRNCSCO | CA |
| 2008-07-08 | 650-534-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SSNFRNCSCO | CA |
| 2008-07-08 | 650-763-1XXX | 1000–1999 | Assigned | COMCAST PHONE OF CALIFORNIA, LLC | 394L | SSNFRNCSCO | CA |
| 2008-07-02 | 650-395-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7145 | REDWOOD CY | CA |
| 2008-06-23 | 650-713-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | HALFMOONBY | CA |
| 2008-06-23 | 650-946-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | LOS ALTOS | CA |
| 2008-06-06 | 650-390-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | MT VIEW | CA |
| 2008-05-23 | 650-681-8XXX | 8000–8999 | Assigned | ONVOY, LLC - CA | 649C | PALO ALTO | CA |
| 2008-05-21 | 650-318-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | MT VIEW | CA |
| 2008-05-14 | 650-213-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PALO ALTO | CA |
| 2008-05-14 | 650-319-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PALO ALTO | CA |
| 2008-05-14 | 650-353-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PALO ALTO | CA |
| 2008-05-09 | 650-305-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | LOS ALTOS | CA |
| 2008-05-05 | 650-477-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | SAN MATEO | CA |
| 2008-05-05 | 650-477-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | SAN MATEO | CA |
| 2008-05-05 | 650-477-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | SAN MATEO | CA |
| 2008-05-02 | 650-284-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | HALFMOONBY | CA |
| 2008-05-02 | 650-295-9XXX | 9000–9999 | Assigned | METROPCS, INC. | 5562 | SAN MATEO | CA |
| 2008-05-02 | 650-752-4XXX | 4000–4999 | Assigned | ONVOY, LLC - CA | 649C | PALO ALTO | CA |
| 2008-05-02 | 650-855-4XXX | 4000–4999 | Assigned | ONVOY, LLC - CA | 649C | PALO ALTO | CA |
| 2008-04-14 | 650-386-1XXX | 1000–1999 | Assigned | COMCAST PHONE OF CALIFORNIA, LLC | 394L | MT VIEW | CA |
| 2008-04-14 | 650-477-2XXX | 2000–2999 | Assigned | COMCAST PHONE OF CALIFORNIA, LLC | 394L | SAN MATEO | CA |
| 2008-04-08 | 650-931-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | SAN MATEO | CA |
| 2008-04-07 | 650-228-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | SSNFRNCSCO | CA |
| 2008-04-07 | 650-228-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | SSNFRNCSCO | CA |
| 2008-03-25 | 650-995-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | REDWOOD CY | CA |
| 2008-03-25 | 650-995-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | REDWOOD CY | CA |
| 2008-03-18 | 650-919-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | MT VIEW | CA |
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.