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 240
New assignments by month
Sep 2026
Aug 2026
Jul 2026
Jun 2026
May 2026
Apr 2026
Mar 2026
Feb 2026
Jan 2026
Dec 2025
Nov 2025
Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2020-12-28 | 240-748-2XXX | 2000–2999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - DC | 7529 | WSHNGTNZN3 | MD |
| 2020-12-28 | 240-748-3XXX | 3000–3999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - DC | 7529 | WSHNGTNZN3 | MD |
| 2020-12-28 | 240-748-4XXX | 4000–4999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - DC | 7529 | WSHNGTNZN3 | MD |
| 2020-12-28 | 240-748-5XXX | 5000–5999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - DC | 7529 | WSHNGTNZN3 | MD |
| 2020-12-28 | 240-748-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - DC | 7529 | WSHNGTNZN3 | MD |
| 2017-09-06 | 240-725-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - DC | 7529 | LXTNPKGRML | MD |
| 2017-01-16 | 240-906-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - DC | 7529 | WSHNGTNZN4 | MD |
| 2016-11-10 | 240-690-3XXX | 3000–3999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - DC | 7529 | GAITHERSBG | MD |
| 2016-05-16 | 240-847-8XXX | 8000–8999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - DC | 7529 | WSHNGTNZN3 | MD |
| 2014-12-09 | 240-618-1XXX | 1000–1999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - DC | 7529 | WSNGTNZN10 | MD |
| 2013-04-11 | 240-762-7XXX | 7000–7999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - DC | 7529 | WSHNGTNZN2 | MD |
| 2012-09-24 | 240-541-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - DC | 7529 | WSHNGTNZN2 | MD |
| 2012-09-24 | 240-541-7XXX | 7000–7999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - DC | 7529 | WSHNGTNZN2 | MD |
| 2012-09-24 | 240-541-8XXX | 8000–8999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - DC | 7529 | WSHNGTNZN2 | MD |
| 2012-09-24 | 240-541-9XXX | 9000–9999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - DC | 7529 | WSHNGTNZN2 | MD |
| 2009-09-17 | 240-669-0XXX | 0000–0999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - DC | 7529 | WSNGTNZN11 | MD |
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.