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 |
|---|---|---|---|---|---|---|---|
| 2003-07-03 | 909-331-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | ONTARIO | CA |
| 2003-07-03 | 909-724-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | ONTARIO | CA |
| 2003-07-03 | 909-724-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | ONTARIO | CA |
| 2003-07-03 | 909-843-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | ONTARIO | CA |
| 2003-07-03 | 909-843-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | ONTARIO | CA |
| 2003-07-03 | 909-952-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | ONTARIO | CA |
| 2003-07-03 | 909-972-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | ONTARIO | CA |
| 2003-07-03 | 909-974-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | ONTARIO | CA |
| 2003-07-01 | 909-200-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | FONTANA | CA |
| 2003-06-25 | 909-630-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | POMONA | CA |
| 2003-06-25 | 909-802-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | POMONA | CA |
| 2003-06-25 | 909-802-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | POMONA | CA |
| 2003-06-11 | 909-728-4XXX | 4000–4999 | Assigned | PAETEC ITEL, LLC | 829J | FONTANA | CA |
| 2003-06-03 | 909-728-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | FONTANA | CA |
| 2003-06-03 | 909-728-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | FONTANA | CA |
| 2003-06-03 | 909-728-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | FONTANA | CA |
| 2003-06-03 | 909-728-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | FONTANA | CA |
| 2003-06-03 | 909-831-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | S BERNDINO | CA |
| 2003-06-03 | 909-831-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | S BERNDINO | CA |
| 2003-06-03 | 909-831-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | S BERNDINO | CA |
| 2003-06-03 | 909-831-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | S BERNDINO | CA |
| 2003-06-03 | 909-831-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | S BERNDINO | CA |
| 2003-06-03 | 909-831-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | S BERNDINO | CA |
| 2003-06-03 | 909-831-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | S BERNDINO | CA |
| 2003-05-22 | 909-297-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | UPLAND | CA |
| 2003-05-21 | 909-282-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | POMONA | CA |
| 2003-05-21 | 909-380-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | S BERNDINO | CA |
| 2003-05-21 | 909-525-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | POMONA | CA |
| 2003-05-21 | 909-525-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | POMONA | CA |
| 2003-05-21 | 909-618-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | POMONA | CA |
| 2003-05-21 | 909-618-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | POMONA | CA |
| 2003-05-21 | 909-618-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | POMONA | CA |
| 2003-05-21 | 909-708-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | S BERNDINO | CA |
| 2003-05-19 | 909-438-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | CHINO | CA |
| 2003-05-19 | 909-446-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | CALIMESA | CA |
| 2003-05-16 | 909-463-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | ETIWANDA | CA |
| 2003-05-16 | 909-480-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | CLAREMONT | CA |
| 2003-05-16 | 909-569-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | DIAMONDBAR | CA |
| 2003-05-12 | 909-349-5XXX | 5000–5999 | Assigned | METROPCS NETWORKS, LLC | 899D | FONTANA | CA |
| 2003-05-12 | 909-349-9XXX | 9000–9999 | Assigned | METROPCS NETWORKS, LLC | 899D | FONTANA | CA |
| 2003-05-12 | 909-770-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | FONTANA | CA |
| 2003-05-12 | 909-770-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | FONTANA | CA |
| 2003-04-28 | 909-753-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | CLAREMONT | CA |
| 2003-04-15 | 909-363-4XXX | 4000–4999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | REDLANDS | CA |
| 2003-04-15 | 909-438-2XXX | 2000–2999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | CHINO | CA |
| 2003-04-15 | 909-467-8XXX | 8000–8999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | ONTARIO | CA |
| 2003-04-15 | 909-498-2XXX | 2000–2999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | COLTON | CA |
| 2003-04-15 | 909-546-7XXX | 7000–7999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | RIALTO | CA |
| 2003-04-15 | 909-579-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | UPLAND | CA |
| 2003-04-15 | 909-708-8XXX | 8000–8999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | S BERNDINO | 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.