NumberResearchRecent thousands-block assignments
0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/22/2026
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 281
New assignments by month
Sep 2026
Aug 2026
Jul 2026
Jun 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2025-08-12 | 281-609-5XXX | 5000–5999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7148 | SHELDON | TX |
| 2024-05-09 | 281-602-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7138 | SPRING | TX |
| 2019-09-06 | 281-529-2XXX | 2000–2999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7138 | HSTNSUBURB | TX |
| 2019-03-29 | 281-505-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7138 | KATY | TX |
| 2019-01-10 | 281-562-2XXX | 2000–2999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7138 | BAMMEL | TX |
| 2019-01-10 | 281-562-3XXX | 3000–3999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7138 | BAMMEL | TX |
| 2019-01-10 | 281-562-4XXX | 4000–4999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7138 | BAMMEL | TX |
| 2019-01-10 | 281-562-5XXX | 5000–5999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7138 | BAMMEL | TX |
| 2019-01-10 | 281-562-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7138 | BAMMEL | TX |
| 2017-07-18 | 281-595-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7138 | ROSHARON | TX |
| 2017-02-27 | 281-982-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7138 | WESTFIELD | TX |
| 2016-07-19 | 281-672-1XXX | 1000–1999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7138 | LEAGUECITY | TX |
| 2016-01-05 | 281-666-5XXX | 5000–5999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7138 | CROSBY | TX |
| 2014-10-03 | 281-982-7XXX | 7000–7999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7138 | WESTFIELD | TX |
| 2014-05-23 | 281-503-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7138 | PORTER HTS | TX |
| 2012-04-16 | 281-254-7XXX | 7000–7999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7138 | HOUSTON | TX |
| 2012-04-16 | 281-254-8XXX | 8000–8999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7138 | HOUSTON | TX |
| 2010-08-27 | 281-742-7XXX | 7000–7999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7138 | WESTFIELD | TX |
| 2009-09-08 | 281-640-7XXX | 7000–7999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7138 | SATSUMA | TX |
| 2009-07-15 | 281-305-7XXX | 7000–7999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7138 | PINEHURST | TX |
| 2009-06-22 | 281-846-7XXX | 7000–7999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7138 | HOUSTON | TX |
| 2009-04-06 | 281-968-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7138 | ALVIN | TX |
| 2009-02-24 | 281-836-9XXX | 9000–9999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7138 | BAMMEL | TX |
| 2008-10-02 | 281-402-7XXX | 7000–7999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7138 | LA PORTE | TX |
| 2008-09-04 | 281-318-4XXX | 4000–4999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7138 | HUMBLE | TX |
| 2008-01-17 | 281-806-7XXX | 7000–7999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7138 | CLEVELAND | TX |
| 2008-01-08 | 281-306-7XXX | 7000–7999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7138 | SPLENDORA | TX |
| 2007-12-11 | 281-836-7XXX | 7000–7999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7138 | BAMMEL | TX |
| 2007-12-11 | 281-836-8XXX | 8000–8999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7138 | BAMMEL | TX |
| 2007-08-30 | 281-724-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7138 | LEAGUECITY | TX |
| 2006-02-24 | 281-816-8XXX | 8000–8999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7138 | FRIENDSWD | TX |
| 2005-08-23 | 281-301-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7138 | BAMMEL | TX |
| 2005-07-19 | 281-408-7XXX | 7000–7999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7138 | BAMMEL | TX |
| 2005-07-19 | 281-408-8XXX | 8000–8999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7138 | BAMMEL | TX |
| 2004-04-19 | 281-410-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7138 | STAFFORD | TX |
| 2004-03-04 | 281-691-9XXX | 9000–9999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7138 | BAYTOWN | TX |
| 2003-09-04 | 281-205-2XXX | 2000–2999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7138 | TOMBALL | TX |
| 2003-03-07 | 281-214-7XXX | 7000–7999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7138 | WESTFIELD | TX |
| 2002-11-19 | 281-671-3XXX | 3000–3999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7138 | SATSUMA | TX |
| 2002-10-14 | 281-500-7XXX | 7000–7999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7138 | LANGHAMCRK | TX |
| 2002-10-01 | 281-241-3XXX | 3000–3999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7138 | DEER PARK | TX |
| 2002-09-27 | 281-318-2XXX | 2000–2999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7138 | HUMBLE | TX |
| 2002-01-11 | 281-898-9XXX | 9000–9999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7138 | APOLLO | TX |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/22/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.