NumberResearchRecent thousands-block assignments
0 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, all time — NPA 310
New assignments by month
Sep 2026
Aug 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2017-07-19 | 310-642-8XXX | 8000–8999 | Assigned | METROPCS NETWORKS, LLC | 899D | INGLEWOOD | CA |
| 2012-12-31 | 310-879-3XXX | 3000–3999 | Assigned | METROPCS NETWORKS, LLC | 899D | CMTN GRDN | CA |
| 2012-12-31 | 310-879-7XXX | 7000–7999 | Assigned | METROPCS NETWORKS, LLC | 899D | CMTN GRDN | CA |
| 2012-06-20 | 310-857-0XXX | 0000–0999 | Assigned | METROPCS NETWORKS, LLC | 899D | SNMN SNMN | CA |
| 2012-05-25 | 310-912-5XXX | 5000–5999 | Assigned | METROPCS NETWORKS, LLC | 899D | INGLEWOOD | CA |
| 2011-03-21 | 310-921-0XXX | 0000–0999 | Assigned | METROPCS NETWORKS, LLC | 899D | REDONDO | CA |
| 2011-02-04 | 310-776-2XXX | 2000–2999 | Assigned | METROPCS NETWORKS, LLC | 899D | SNMN MRVS | CA |
| 2009-02-20 | 310-461-9XXX | 9000–9999 | Assigned | METROPCS NETWORKS, LLC | 899D | BEVERLYHLS | CA |
| 2009-01-07 | 310-272-0XXX | 0000–0999 | Assigned | METROPCS NETWORKS, LLC | 899D | BEVERLYHLS | CA |
| 2008-12-17 | 310-619-3XXX | 3000–3999 | Assigned | METROPCS NETWORKS, LLC | 899D | TORRANCE | CA |
| 2006-06-13 | 310-883-3XXX | 3000–3999 | Assigned | METROPCS NETWORKS, LLC | 899D | SNMN SNMN | CA |
| 2006-05-25 | 310-896-1XXX | 1000–1999 | Assigned | METROPCS NETWORKS, LLC | 899D | REDONDO | CA |
| 2005-12-14 | 310-988-6XXX | 6000–6999 | Assigned | METROPCS NETWORKS, LLC | 899D | INGLEWOOD | CA |
| 2005-10-04 | 310-988-3XXX | 3000–3999 | Assigned | METROPCS NETWORKS, LLC | 899D | INGLEWOOD | CA |
| 2005-08-30 | 310-982-8XXX | 8000–8999 | Assigned | METROPCS NETWORKS, LLC | 899D | SAN PEDRO | CA |
| 2005-08-30 | 310-982-9XXX | 9000–9999 | Assigned | METROPCS NETWORKS, LLC | 899D | SAN PEDRO | CA |
| 2005-08-05 | 310-776-1XXX | 1000–1999 | Assigned | METROPCS NETWORKS, LLC | 899D | SNMN MRVS | CA |
| 2005-07-21 | 310-947-9XXX | 9000–9999 | Assigned | METROPCS NETWORKS, LLC | 899D | REDONDO | CA |
| 2005-05-10 | 310-703-9XXX | 9000–9999 | Assigned | METROPCS NETWORKS, LLC | 899D | INGLEWOOD | CA |
| 2005-03-08 | 310-910-8XXX | 8000–8999 | Assigned | METROPCS NETWORKS, LLC | 899D | INGLEWOOD | CA |
| 2005-03-04 | 310-987-5XXX | 5000–5999 | Assigned | METROPCS NETWORKS, LLC | 899D | SAN PEDRO | CA |
| 2005-02-14 | 310-987-9XXX | 9000–9999 | Assigned | METROPCS NETWORKS, LLC | 899D | SAN PEDRO | CA |
| 2005-01-19 | 310-595-7XXX | 7000–7999 | Assigned | METROPCS NETWORKS, LLC | 899D | BEVERLYHLS | CA |
| 2004-12-17 | 310-984-0XXX | 0000–0999 | Assigned | METROPCS NETWORKS, LLC | 899D | SAN PEDRO | CA |
| 2004-12-17 | 310-984-9XXX | 9000–9999 | Assigned | METROPCS NETWORKS, LLC | 899D | SAN PEDRO | CA |
| 2004-11-08 | 310-654-9XXX | 9000–9999 | Assigned | METROPCS NETWORKS, LLC | 899D | INGLEWOOD | CA |
| 2004-10-15 | 310-966-7XXX | 7000–7999 | Assigned | METROPCS NETWORKS, LLC | 899D | W ANGELES | CA |
| 2004-09-28 | 310-876-7XXX | 7000–7999 | Assigned | METROPCS NETWORKS, LLC | 899D | CULVERCITY | CA |
| 2004-07-21 | 310-431-0XXX | 0000–0999 | Assigned | METROPCS NETWORKS, LLC | 899D | INGLEWOOD | CA |
| 2004-07-21 | 310-910-6XXX | 6000–6999 | Assigned | METROPCS NETWORKS, LLC | 899D | INGLEWOOD | CA |
| 2004-06-22 | 310-924-0XXX | 0000–0999 | Assigned | METROPCS NETWORKS, LLC | 899D | MALIBU | CA |
| 2004-06-22 | 310-924-4XXX | 4000–4999 | Assigned | METROPCS NETWORKS, LLC | 899D | MALIBU | CA |
| 2004-05-27 | 310-904-7XXX | 7000–7999 | Assigned | METROPCS NETWORKS, LLC | 899D | CULVERCITY | CA |
| 2004-03-09 | 310-904-4XXX | 4000–4999 | Assigned | METROPCS NETWORKS, LLC | 899D | CULVERCITY | CA |
| 2004-03-09 | 310-904-5XXX | 5000–5999 | Assigned | METROPCS NETWORKS, LLC | 899D | CULVERCITY | CA |
| 2004-03-07 | 310-971-1XXX | 1000–1999 | Assigned | METROPCS NETWORKS, LLC | 899D | SAN PEDRO | CA |
| 2004-02-17 | 310-971-8XXX | 8000–8999 | Assigned | METROPCS NETWORKS, LLC | 899D | SAN PEDRO | CA |
| 2004-01-19 | 310-242-1XXX | 1000–1999 | Assigned | METROPCS NETWORKS, LLC | 899D | INGLEWOOD | CA |
| 2004-01-15 | 310-957-0XXX | 0000–0999 | Assigned | METROPCS NETWORKS, LLC | 899D | INGLEWOOD | CA |
| 2004-01-15 | 310-957-7XXX | 7000–7999 | Assigned | METROPCS NETWORKS, LLC | 899D | INGLEWOOD | CA |
| 2004-01-08 | 310-971-0XXX | 0000–0999 | Assigned | METROPCS NETWORKS, LLC | 899D | SAN PEDRO | CA |
| 2003-11-11 | 310-242-0XXX | 0000–0999 | Assigned | METROPCS NETWORKS, LLC | 899D | INGLEWOOD | CA |
| 2003-09-11 | 310-924-7XXX | 7000–7999 | Assigned | METROPCS NETWORKS, LLC | 899D | MALIBU | CA |
| 2003-09-11 | 310-924-8XXX | 8000–8999 | Assigned | METROPCS NETWORKS, LLC | 899D | MALIBU | CA |
| 2003-09-09 | 310-492-1XXX | 1000–1999 | Assigned | METROPCS NETWORKS, LLC | 899D | BEVERLYHLS | CA |
| 2003-08-04 | 310-981-6XXX | 6000–6999 | Assigned | METROPCS NETWORKS, LLC | 899D | INGLEWOOD | CA |
| 2003-07-16 | 310-872-0XXX | 0000–0999 | Assigned | METROPCS NETWORKS, LLC | 899D | SAN PEDRO | CA |
| 2003-03-06 | 310-590-0XXX | 0000–0999 | Assigned | METROPCS NETWORKS, LLC | 899D | INGLEWOOD | CA |
| 2002-11-22 | 310-919-7XXX | 7000–7999 | Assigned | METROPCS NETWORKS, LLC | 899D | MALIBU | CA |
| 2002-11-09 | 310-754-9XXX | 9000–9999 | Assigned | METROPCS NETWORKS, LLC | 899D | SNMN MRVS | 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.