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 |
|---|---|---|---|---|---|---|---|
| 2005-05-22 | 909-804-7XXX | 7000–7999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | MARSHALL | CA |
| 2005-05-18 | 909-575-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | CLAREMONT | CA |
| 2005-05-18 | 909-575-4XXX | 4000–4999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | CLAREMONT | CA |
| 2005-05-18 | 909-575-6XXX | 6000–6999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | CLAREMONT | CA |
| 2005-05-18 | 909-962-2XXX | 2000–2999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | CLAREMONT | CA |
| 2005-05-18 | 909-962-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | CLAREMONT | CA |
| 2005-05-18 | 909-962-4XXX | 4000–4999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | CLAREMONT | CA |
| 2005-05-17 | 909-803-5XXX | 5000–5999 | Assigned | FRONTIER CALIFORNIA INC. | 2319 | ETIWANDA | CA |
| 2005-05-13 | 909-520-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | S BERNDINO | CA |
| 2005-05-13 | 909-520-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | S BERNDINO | CA |
| 2005-05-12 | 909-580-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | COLTON | CA |
| 2005-05-12 | 909-746-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | RIALTO | CA |
| 2005-05-12 | 909-746-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | RIALTO | CA |
| 2005-05-12 | 909-835-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | COLTON | CA |
| 2005-05-10 | 909-546-2XXX | 2000–2999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | RIALTO | CA |
| 2005-05-10 | 909-546-6XXX | 6000–6999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | RIALTO | CA |
| 2005-05-03 | 909-354-8XXX | 8000–8999 | Assigned | PAETEC ITEL, LLC | 829J | ONTARIO | CA |
| 2005-05-02 | 909-609-0XXX | 0000–0999 | Assigned | METROPCS NETWORKS, LLC | 899D | FONTANA | CA |
| 2005-05-02 | 909-609-7XXX | 7000–7999 | Assigned | METROPCS NETWORKS, LLC | 899D | FONTANA | CA |
| 2005-05-02 | 909-609-8XXX | 8000–8999 | Assigned | METROPCS NETWORKS, LLC | 899D | FONTANA | CA |
| 2005-05-02 | 909-609-9XXX | 9000–9999 | Assigned | METROPCS NETWORKS, LLC | 899D | FONTANA | CA |
| 2005-04-27 | 909-539-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | CHINO | CA |
| 2005-04-27 | 909-539-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | CHINO | CA |
| 2005-04-20 | 909-380-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | S BERNDINO | CA |
| 2005-04-20 | 909-659-2XXX | 2000–2999 | Assigned | METROPCS NETWORKS, LLC | 899D | S BERNDINO | CA |
| 2005-04-15 | 909-659-1XXX | 1000–1999 | Assigned | METROPCS NETWORKS, LLC | 899D | S BERNDINO | CA |
| 2005-04-13 | 909-684-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | FONTANA | CA |
| 2005-04-13 | 909-684-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | FONTANA | CA |
| 2005-04-08 | 909-659-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | S BERNDINO | CA |
| 2005-04-08 | 909-659-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | S BERNDINO | CA |
| 2005-04-08 | 909-659-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | S BERNDINO | CA |
| 2005-04-08 | 909-747-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | REDLANDS | CA |
| 2005-04-08 | 909-747-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | REDLANDS | CA |
| 2005-04-08 | 909-747-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | REDLANDS | CA |
| 2005-04-08 | 909-837-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | POMONA | CA |
| 2005-04-08 | 909-837-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | POMONA | CA |
| 2005-04-08 | 909-837-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | POMONA | CA |
| 2005-04-08 | 909-915-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | S BERNDINO | CA |
| 2005-04-06 | 909-684-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | FONTANA | CA |
| 2005-04-06 | 909-684-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | FONTANA | CA |
| 2005-04-06 | 909-684-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | FONTANA | CA |
| 2005-04-05 | 909-837-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | POMONA | CA |
| 2005-04-01 | 909-435-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | REDLANDS | CA |
| 2005-04-01 | 909-569-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | DIAMONDBAR | CA |
| 2005-04-01 | 909-758-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | UPLAND | CA |
| 2005-04-01 | 909-939-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | RUNNINGSPG | CA |
| 2005-04-01 | 909-939-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | RUNNINGSPG | CA |
| 2005-03-30 | 909-684-8XXX | 8000–8999 | Assigned | METROPCS NETWORKS, LLC | 899D | FONTANA | CA |
| 2005-03-30 | 909-684-9XXX | 9000–9999 | Assigned | METROPCS NETWORKS, LLC | 899D | FONTANA | CA |
| 2005-03-24 | 909-801-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | REDLANDS | 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.