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 213
New assignments by month
Sep 2026
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| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2020-02-13 | 213-947-2XXX | 2000–2999 | Assigned | UTILITY TELECOM GROUP, LLC - CA | 9262 | LSAN DA 01 | CA |
| 2020-02-13 | 213-947-8XXX | 8000–8999 | Assigned | UTILITY TELECOM GROUP, LLC - CA | 9262 | LSAN DA 01 | CA |
| 2019-07-29 | 213-462-0XXX | 0000–0999 | Assigned | UTILITY TELECOM GROUP, LLC - CA | 9262 | LSAN DA 01 | CA |
| 2017-12-15 | 213-901-6XXX | 6000–6999 | Assigned | UTILITY TELECOM GROUP, LLC - CA | 9262 | LSAN DA 01 | CA |
| 2017-12-15 | 213-901-7XXX | 7000–7999 | Assigned | UTILITY TELECOM GROUP, LLC - CA | 9262 | LSAN DA 01 | CA |
| 2017-12-08 | 213-966-1XXX | 1000–1999 | Assigned | UTILITY TELECOM GROUP, LLC - CA | 9262 | LSAN DA 07 | CA |
| 2017-12-06 | 213-888-1XXX | 1000–1999 | Assigned | UTILITY TELECOM GROUP, LLC - CA | 9262 | LSAN DA 10 | CA |
| 2017-12-06 | 213-888-2XXX | 2000–2999 | Assigned | UTILITY TELECOM GROUP, LLC - CA | 9262 | LSAN DA 10 | CA |
| 2017-12-06 | 213-888-3XXX | 3000–3999 | Assigned | UTILITY TELECOM GROUP, LLC - CA | 9262 | LSAN DA 10 | CA |
| 2017-12-06 | 213-888-4XXX | 4000–4999 | Assigned | UTILITY TELECOM GROUP, LLC - CA | 9262 | LSAN DA 10 | CA |
| 2017-11-30 | 213-888-0XXX | 0000–0999 | Assigned | UTILITY TELECOM GROUP, LLC - CA | 9262 | LSAN DA 10 | CA |
| 2017-11-30 | 213-888-8XXX | 8000–8999 | Assigned | UTILITY TELECOM GROUP, LLC - CA | 9262 | LSAN DA 10 | CA |
| 2017-11-29 | 213-777-0XXX | 0000–0999 | Assigned | UTILITY TELECOM GROUP, LLC - CA | 9262 | LSAN DA 01 | CA |
| 2017-11-29 | 213-777-2XXX | 2000–2999 | Assigned | UTILITY TELECOM GROUP, LLC - CA | 9262 | LSAN DA 01 | CA |
| 2017-11-29 | 213-901-1XXX | 1000–1999 | Assigned | UTILITY TELECOM GROUP, LLC - CA | 9262 | LSAN DA 01 | CA |
| 2017-11-29 | 213-901-4XXX | 4000–4999 | Assigned | UTILITY TELECOM GROUP, LLC - CA | 9262 | LSAN DA 01 | CA |
| 2007-07-16 | 213-454-5XXX | 5000–5999 | Assigned | UTILITY TELECOM GROUP, LLC - CA | 9262 | LSAN DA 01 | CA |
| 2006-05-12 | 213-839-5XXX | 5000–5999 | Assigned | UTILITY TELECOM GROUP, LLC - CA | 9262 | LSAN DA 07 | CA |
| 2006-05-12 | 213-858-4XXX | 4000–4999 | Assigned | UTILITY TELECOM GROUP, LLC - CA | 9262 | LSAN DA 10 | CA |
| 2005-03-07 | 213-454-4XXX | 4000–4999 | Assigned | UTILITY TELECOM GROUP, LLC - CA | 9262 | LSAN DA 01 | 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.