NumberResearchRecent thousands-block assignments
0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026
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 409
New assignments by month
Sep 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2025-02-04 | 409-213-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | SABINEPASS | TX |
| 2025-02-04 | 409-285-7XXX | 7000–7999 | Assigned | IP HORIZON LLC | 515J | WOODVILLE | TX |
| 2025-02-04 | 409-314-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | SILSBEE | TX |
| 2025-02-04 | 409-323-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | WARREN | TX |
| 2025-02-04 | 409-334-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | TXSCYMARQU | TX |
| 2025-02-04 | 409-334-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | TXSCYMARQU | TX |
| 2025-02-04 | 409-357-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | CHINA | TX |
| 2025-02-04 | 409-358-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | DEWEYVILLE | TX |
| 2025-02-04 | 409-360-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | GALVESTON | TX |
| 2025-02-04 | 409-360-2XXX | 2000–2999 | Assigned | IP HORIZON LLC | 515J | GALVESTON | TX |
| 2025-02-04 | 409-445-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | SOUR LAKE | TX |
| 2025-02-04 | 409-498-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | VIDOR | TX |
| 2025-02-04 | 409-546-2XXX | 2000–2999 | Assigned | IP HORIZON LLC | 515J | PORTARTHUR | TX |
| 2025-02-04 | 409-742-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | SOUTHVIDOR | TX |
| 2025-02-04 | 409-946-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | PT BOLIVAR | TX |
| 2025-02-03 | 409-279-2XXX | 2000–2999 | Assigned | IP HORIZON LLC | 515J | KIRBYVILLE | TX |
| 2025-02-03 | 409-308-7XXX | 7000–7999 | Assigned | IP HORIZON LLC | 515J | BRIDGECITY | TX |
| 2025-02-03 | 409-326-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | KOUNTZE | TX |
| 2025-02-03 | 409-327-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | LA BELLE | TX |
| 2025-02-03 | 409-329-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | MAURICEVL | TX |
| 2025-02-03 | 409-339-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | LUMBERTON | TX |
| 2025-02-03 | 409-449-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | EVADALE | TX |
| 2025-02-03 | 409-699-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | BUNA | TX |
| 2025-02-03 | 409-794-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | FANNETT | TX |
| 2023-12-05 | 409-302-2XXX | 2000–2999 | Assigned | IP HORIZON LLC | 515J | TXSCYMARQU | TX |
| 2022-10-28 | 409-249-3XXX | 3000–3999 | Assigned | IP HORIZON LLC | 515J | BEAUMONT | TX |
| 2022-10-28 | 409-249-4XXX | 4000–4999 | Assigned | IP HORIZON LLC | 515J | BEAUMONT | TX |
| 2020-09-29 | 409-259-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | BEAUMONT | TX |
| 2019-04-19 | 409-443-2XXX | 2000–2999 | Assigned | IP HORIZON LLC | 515J | GALVESTON | TX |
| 2019-04-19 | 409-443-3XXX | 3000–3999 | Assigned | IP HORIZON LLC | 515J | GALVESTON | TX |
| 2016-03-02 | 409-218-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | HTCHCCKSNF | TX |
| 2016-03-02 | 409-359-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | TXSCYMARQU | TX |
| 2016-03-02 | 409-632-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | GALVESTON | TX |
| 2016-03-02 | 409-632-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | GALVESTON | TX |
| 2015-02-26 | 409-316-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | HTCHCCKSNF | TX |
| 2013-07-31 | 409-737-6XXX | 6000–6999 | Assigned | IP HORIZON LLC | 515J | GALVESTON | TX |
| 2013-07-31 | 409-908-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | TXSCYMARQU | TX |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.