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 909
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 |
|---|---|---|---|---|---|---|---|
| 2017-12-19 | 909-995-0XXX | 0000–0999 | Assigned | UTILITY TELECOM GROUP, LLC - CA | 9262 | ONTARIO | CA |
| 2017-12-19 | 909-995-1XXX | 1000–1999 | Assigned | UTILITY TELECOM GROUP, LLC - CA | 9262 | ONTARIO | CA |
| 2017-12-19 | 909-995-2XXX | 2000–2999 | Assigned | UTILITY TELECOM GROUP, LLC - CA | 9262 | ONTARIO | CA |
| 2017-12-19 | 909-995-3XXX | 3000–3999 | Assigned | UTILITY TELECOM GROUP, LLC - CA | 9262 | ONTARIO | CA |
| 2017-11-29 | 909-807-2XXX | 2000–2999 | Assigned | UTILITY TELECOM GROUP, LLC - CA | 9262 | COLTON | CA |
| 2017-11-29 | 909-807-3XXX | 3000–3999 | Assigned | UTILITY TELECOM GROUP, LLC - CA | 9262 | COLTON | CA |
| 2017-11-29 | 909-807-4XXX | 4000–4999 | Assigned | UTILITY TELECOM GROUP, LLC - CA | 9262 | COLTON | CA |
| 2017-11-29 | 909-807-5XXX | 5000–5999 | Assigned | UTILITY TELECOM GROUP, LLC - CA | 9262 | COLTON | CA |
| 2017-11-29 | 909-807-6XXX | 6000–6999 | Assigned | UTILITY TELECOM GROUP, LLC - CA | 9262 | COLTON | CA |
| 2017-11-29 | 909-807-7XXX | 7000–7999 | Assigned | UTILITY TELECOM GROUP, LLC - CA | 9262 | COLTON | CA |
| 2017-05-24 | 909-317-5XXX | 5000–5999 | Assigned | UTILITY TELECOM GROUP, LLC - CA | 9262 | ETIWANDA | CA |
| 2015-01-15 | 909-662-0XXX | 0000–0999 | Assigned | UTILITY TELECOM GROUP, LLC - CA | 9262 | CHINO | CA |
| 2012-06-27 | 909-543-3XXX | 3000–3999 | Assigned | UTILITY TELECOM GROUP, LLC - CA | 9262 | RIALTO | CA |
| 2012-06-05 | 909-353-6XXX | 6000–6999 | Assigned | UTILITY TELECOM GROUP, LLC - CA | 9262 | REDLANDS | CA |
| 2012-05-30 | 909-878-9XXX | 9000–9999 | Assigned | UTILITY TELECOM GROUP, LLC - CA | 9262 | BIGBEAR LK | CA |
| 2006-06-13 | 909-532-7XXX | 7000–7999 | Assigned | UTILITY TELECOM GROUP, LLC - CA | 9262 | 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 | 909-784-4XXX | 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 |
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.