NumberResearchRecent thousands-block assignments
9 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 909
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 |
|---|---|---|---|---|---|---|---|
| 2005-09-08 | 909-538-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | POMONA | CA |
| 2005-09-06 | 909-348-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | DIAMONDBAR | CA |
| 2005-09-06 | 909-348-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | DIAMONDBAR | CA |
| 2005-09-06 | 909-573-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | CHINO | CA |
| 2005-08-29 | 909-297-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | UPLAND | CA |
| 2005-08-26 | 909-539-9XXX | 9000–9999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | CHINO | CA |
| 2005-08-26 | 909-647-9XXX | 9000–9999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | HIGHLAND | CA |
| 2005-08-26 | 909-748-1XXX | 1000–1999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | REDLANDS | CA |
| 2005-08-26 | 909-748-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | REDLANDS | CA |
| 2005-08-26 | 909-803-9XXX | 9000–9999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | ETIWANDA | CA |
| 2005-08-26 | 909-992-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | POMONA | CA |
| 2005-08-26 | 909-992-4XXX | 4000–4999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | POMONA | CA |
| 2005-08-25 | 909-538-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | POMONA | CA |
| 2005-08-25 | 909-538-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | POMONA | CA |
| 2005-08-25 | 909-538-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | POMONA | CA |
| 2005-08-24 | 909-748-8XXX | 8000–8999 | Assigned | FRONTIER CALIFORNIA INC. | 2319 | REDLANDS | CA |
| 2005-08-23 | 909-543-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | RIALTO | CA |
| 2005-08-23 | 909-979-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | DIAMONDBAR | CA |
| 2005-08-18 | 909-801-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | REDLANDS | CA |
| 2005-08-18 | 909-801-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | REDLANDS | CA |
| 2005-08-18 | 909-912-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | UPLAND | CA |
| 2005-08-18 | 909-912-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | UPLAND | CA |
| 2005-08-18 | 909-912-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | UPLAND | CA |
| 2005-08-17 | 909-723-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | S BERNDINO | CA |
| 2005-08-17 | 909-723-6XXX | 6000–6999 | Assigned | METROPCS NETWORKS, LLC | 899D | S BERNDINO | CA |
| 2005-08-17 | 909-723-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | S BERNDINO | CA |
| 2005-08-17 | 909-993-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | CHINO | CA |
| 2005-08-17 | 909-993-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | CHINO | CA |
| 2005-08-16 | 909-503-4XXX | 4000–4999 | Assigned | ONVOY, LLC - CA | 649C | COLTON | CA |
| 2005-08-16 | 909-746-4XXX | 4000–4999 | Assigned | ONVOY, LLC - CA | 649C | RIALTO | CA |
| 2005-08-11 | 909-723-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | S BERNDINO | CA |
| 2005-08-11 | 909-723-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | S BERNDINO | CA |
| 2005-08-05 | 909-786-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | ONTARIO | CA |
| 2005-08-05 | 909-786-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | ONTARIO | CA |
| 2005-08-05 | 909-786-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | ONTARIO | CA |
| 2005-08-05 | 909-786-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | ONTARIO | CA |
| 2005-08-04 | 909-723-1XXX | 1000–1999 | Assigned | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | S BERNDINO | CA |
| 2005-08-03 | 909-446-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | CALIMESA | CA |
| 2005-08-03 | 909-895-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | DIAMONDBAR | CA |
| 2005-07-29 | 909-538-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | POMONA | CA |
| 2005-07-29 | 909-538-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | POMONA | CA |
| 2005-07-27 | 909-435-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | REDLANDS | CA |
| 2005-07-27 | 909-786-0XXX | 0000–0999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | ONTARIO | CA |
| 2005-07-25 | 909-480-7XXX | 7000–7999 | Assigned | LEVEL 3 TELECOM OF CALIFORNIA, LP - CA | 7718 | CLAREMONT | CA |
| 2005-07-21 | 909-583-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | REDLANDS | CA |
| 2005-07-21 | 909-803-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | ETIWANDA | CA |
| 2005-07-19 | 909-744-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | ARROWHEAD | CA |
| 2005-07-15 | 909-579-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | UPLAND | CA |
| 2005-07-13 | 909-954-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | COLTON | CA |
| 2005-07-13 | 909-954-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | COLTON | 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.