NumberResearchRecent thousands-block assignments
0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/21/2026
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 713
New assignments by month
Sep 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2005-03-17 | 713-429-1XXX | 1000–1999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | HOUSTON | TX |
| 2005-03-17 | 713-429-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | HOUSTON | TX |
| 2005-03-08 | 713-232-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | HOUSTON | TX |
| 2005-03-08 | 713-259-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | HOUSTON | TX |
| 2005-03-08 | 713-292-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | HOUSTON | TX |
| 2005-03-08 | 713-292-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | HOUSTON | TX |
| 2005-03-08 | 713-292-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | HOUSTON | TX |
| 2005-03-08 | 713-492-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | HOUSTON | TX |
| 2005-03-04 | 713-344-0XXX | 0000–0999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | HOUSTON | TX |
| 2005-03-04 | 713-344-1XXX | 1000–1999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | HOUSTON | TX |
| 2005-02-15 | 713-591-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | HOUSTON | TX |
| 2005-02-15 | 713-591-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | HOUSTON | TX |
| 2005-02-15 | 713-591-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | HOUSTON | TX |
| 2005-02-15 | 713-591-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | HOUSTON | TX |
| 2005-02-02 | 713-357-4XXX | 4000–4999 | Assigned | ONVOY, LLC - TX | 903C | HOUSTON | TX |
| 2005-02-02 | 713-357-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | HOUSTON | TX |
| 2005-02-02 | 713-357-6XXX | 6000–6999 | Assigned | ONVOY, LLC - TX | 903C | HOUSTON | TX |
| 2005-02-02 | 713-357-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | HOUSTON | TX |
| 2005-02-02 | 713-357-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | HOUSTON | TX |
| 2005-01-20 | 713-344-8XXX | 8000–8999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | HOUSTON | TX |
| 2005-01-20 | 713-874-7XXX | 7000–7999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | HOUSTON | TX |
| 2005-01-19 | 713-576-9XXX | 9000–9999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | HOUSTON | TX |
| 2005-01-19 | 713-577-9XXX | 9000–9999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | HOUSTON | TX |
| 2005-01-19 | 713-834-4XXX | 4000–4999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | HOUSTON | TX |
| 2005-01-19 | 713-834-5XXX | 5000–5999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | HOUSTON | TX |
| 2005-01-19 | 713-885-9XXX | 9000–9999 | Assigned | ONVOY, LLC - TX | 903C | HOUSTON | TX |
| 2005-01-19 | 713-966-0XXX | 0000–0999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | HOUSTON | TX |
| 2005-01-19 | 713-966-9XXX | 9000–9999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | HOUSTON | TX |
| 2005-01-19 | 713-972-4XXX | 4000–4999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | HOUSTON | TX |
| 2005-01-19 | 713-972-5XXX | 5000–5999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | HOUSTON | TX |
| 2005-01-12 | 713-893-1XXX | 1000–1999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | LEAGUECITY | TX |
| 2005-01-07 | 713-456-0XXX | 0000–0999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | HOUSTON | TX |
| 2005-01-07 | 713-513-0XXX | 0000–0999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | HOUSTON | TX |
| 2005-01-07 | 713-548-7XXX | 7000–7999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | HOUSTON | TX |
| 2005-01-07 | 713-979-6XXX | 6000–6999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | HOUSTON | TX |
| 2005-01-07 | 713-979-7XXX | 7000–7999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | HOUSTON | TX |
| 2005-01-07 | 713-979-8XXX | 8000–8999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | HOUSTON | TX |
| 2005-01-07 | 713-985-9XXX | 9000–9999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | HOUSTON | TX |
| 2005-01-03 | 713-423-4XXX | 4000–4999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | HOUSTON | TX |
| 2005-01-03 | 713-591-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | HOUSTON | TX |
| 2005-01-03 | 713-591-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | HOUSTON | TX |
| 2005-01-03 | 713-591-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | HOUSTON | TX |
| 2005-01-03 | 713-893-0XXX | 0000–0999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | LEAGUECITY | TX |
| 2004-12-15 | 713-583-0XXX | 0000–0999 | Assigned | LEVEL 3 OF TELECOM OF TEXAS, LLC - TX | 7074 | HOUSTON | TX |
| 2004-12-15 | 713-583-1XXX | 1000–1999 | Assigned | LEVEL 3 OF TELECOM OF TEXAS, LLC - TX | 7074 | HOUSTON | TX |
| 2004-12-15 | 713-583-2XXX | 2000–2999 | Assigned | LEVEL 3 OF TELECOM OF TEXAS, LLC - TX | 7074 | HOUSTON | TX |
| 2004-12-15 | 713-583-3XXX | 3000–3999 | Assigned | LEVEL 3 OF TELECOM OF TEXAS, LLC - TX | 7074 | HOUSTON | TX |
| 2004-12-15 | 713-583-4XXX | 4000–4999 | Assigned | LEVEL 3 OF TELECOM OF TEXAS, LLC - TX | 7074 | HOUSTON | TX |
| 2004-12-15 | 713-583-5XXX | 5000–5999 | Assigned | LEVEL 3 OF TELECOM OF TEXAS, LLC - TX | 7074 | HOUSTON | TX |
| 2004-12-15 | 713-583-6XXX | 6000–6999 | Assigned | LEVEL 3 OF TELECOM OF TEXAS, LLC - TX | 7074 | HOUSTON | TX |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/21/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.