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 |
|---|---|---|---|---|---|---|---|
| 2006-04-21 | 909-532-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | UPLAND | CA |
| 2006-04-21 | 909-532-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | UPLAND | CA |
| 2006-04-19 | 909-451-5XXX | 5000–5999 | Assigned | UTILITY TELECOM GROUP, LLC - CA | 9262 | CLAREMONT | CA |
| 2006-04-19 | 909-471-7XXX | 7000–7999 | Assigned | UTILITY TELECOM GROUP, LLC - CA | 9262 | FONTANA | CA |
| 2006-04-19 | 909-509-7XXX | 7000–7999 | Assigned | UTILITY TELECOM GROUP, LLC - CA | 9262 | ONTARIO | CA |
| 2006-04-19 | 909-533-3XXX | 3000–3999 | Assigned | UTILITY TELECOM GROUP, LLC - CA | 9262 | COLTON | CA |
| 2006-04-19 | 909-634-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | POMONA | CA |
| 2006-04-19 | 909-652-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | UPLAND | CA |
| 2006-04-19 | 909-652-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | UPLAND | CA |
| 2006-04-19 | 909-784-4XXX | 4000–4999 | Assigned | UTILITY TELECOM GROUP, LLC - CA | 9262 | POMONA | CA |
| 2006-04-19 | 909-859-6XXX | 6000–6999 | Assigned | UTILITY TELECOM GROUP, LLC - CA | 9262 | DIAMONDBAR | CA |
| 2006-04-19 | 909-963-7XXX | 7000–7999 | Assigned | UTILITY TELECOM GROUP, LLC - CA | 9262 | S BERNDINO | CA |
| 2006-04-19 | 909-965-7XXX | 7000–7999 | Assigned | METROPCS NETWORKS, LLC | 899D | S BERNDINO | CA |
| 2006-04-19 | 909-965-8XXX | 8000–8999 | Assigned | METROPCS NETWORKS, LLC | 899D | S BERNDINO | CA |
| 2006-04-18 | 909-963-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | S BERNDINO | CA |
| 2006-04-18 | 909-963-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | S BERNDINO | CA |
| 2006-04-18 | 909-963-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | S BERNDINO | CA |
| 2006-04-14 | 909-652-0XXX | 0000–0999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | UPLAND | CA |
| 2006-04-07 | 909-450-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | CLAREMONT | CA |
| 2006-04-05 | 909-275-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | FONTANA | CA |
| 2006-04-03 | 909-543-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | RIALTO | CA |
| 2006-03-31 | 909-971-6XXX | 6000–6999 | Assigned | PACIFIC BELL (COMPETITIVE) | 7480 | CLAREMONT | CA |
| 2006-03-30 | 909-573-8XXX | 8000–8999 | Assigned | METROPCS NETWORKS, LLC | 899D | CHINO | CA |
| 2006-03-24 | 909-297-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | UPLAND | CA |
| 2006-03-24 | 909-362-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | HIGHLAND | CA |
| 2006-03-24 | 909-509-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | ONTARIO | CA |
| 2006-03-22 | 909-287-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | CHINO | CA |
| 2006-03-22 | 909-471-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | FONTANA | CA |
| 2006-03-22 | 909-922-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | ETIWANDA | CA |
| 2006-03-22 | 909-993-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | CHINO | CA |
| 2006-03-21 | 909-567-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | S BERNDINO | CA |
| 2006-03-21 | 909-567-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | S BERNDINO | CA |
| 2006-03-21 | 909-763-6XXX | 6000–6999 | Assigned | METROPCS NETWORKS, LLC | 899D | S BERNDINO | CA |
| 2006-03-15 | 909-565-7XXX | 7000–7999 | Assigned | METROPCS NETWORKS, LLC | 899D | FONTANA | CA |
| 2006-03-15 | 909-565-8XXX | 8000–8999 | Assigned | METROPCS NETWORKS, LLC | 899D | FONTANA | CA |
| 2006-03-15 | 909-565-9XXX | 9000–9999 | Assigned | METROPCS NETWORKS, LLC | 899D | FONTANA | CA |
| 2006-03-14 | 909-509-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | ONTARIO | CA |
| 2006-03-14 | 909-509-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | ONTARIO | CA |
| 2006-03-13 | 909-803-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | ETIWANDA | CA |
| 2006-03-13 | 909-809-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | REDLANDS | CA |
| 2006-03-13 | 909-809-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | REDLANDS | CA |
| 2006-03-08 | 909-440-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | RIALTO | CA |
| 2006-03-08 | 909-440-2XXX | 2000–2999 | Assigned | IP HORIZON LLC | 515J | RIALTO | CA |
| 2006-02-28 | 909-287-7XXX | 7000–7999 | Assigned | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | CHINO | CA |
| 2006-02-28 | 909-568-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | CLAREMONT | CA |
| 2006-02-27 | 909-275-3XXX | 3000–3999 | Assigned | AT&T ENTERPRISES, LLC | 516C | FONTANA | CA |
| 2006-02-23 | 909-533-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | COLTON | CA |
| 2006-02-21 | 909-471-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | FONTANA | CA |
| 2006-02-21 | 909-471-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | FONTANA | CA |
| 2006-02-21 | 909-471-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | FONTANA | 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.