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 737
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 |
|---|---|---|---|---|---|---|---|
| 2018-07-18 | 737-248-4XXX | 4000–4999 | Assigned | FOREMOST TELECOMMUNICATIONS CORPORATION - TX | 319D | KYLE | TX |
| 2013-08-13 | 737-222-2XXX | 2000–2999 | Assigned | FOREMOST TELECOMMUNICATIONS CORPORATION - TX | 319D | AUSTIN | TX |
| 2013-08-09 | 737-777-1XXX | 1000–1999 | Assigned | FOREMOST TELECOMMUNICATIONS CORPORATION - TX | 319D | LEANDER | TX |
| 2013-08-09 | 737-777-4XXX | 4000–4999 | Assigned | FOREMOST TELECOMMUNICATIONS CORPORATION - TX | 319D | LEANDER | TX |
| 2013-08-09 | 737-777-5XXX | 5000–5999 | Assigned | FOREMOST TELECOMMUNICATIONS CORPORATION - TX | 319D | LEANDER | TX |
| 2013-03-04 | 737-444-4XXX | 4000–4999 | Assigned | FOREMOST TELECOMMUNICATIONS CORPORATION - TX | 319D | GEORGETOWN | TX |
| 2013-03-04 | 737-666-6XXX | 6000–6999 | Assigned | FOREMOST TELECOMMUNICATIONS CORPORATION - TX | 319D | ELGIN | TX |
| 2013-03-04 | 737-888-8XXX | 8000–8999 | Assigned | FOREMOST TELECOMMUNICATIONS CORPORATION - TX | 319D | TAYLOR | TX |
| 2013-03-04 | 737-999-9XXX | 9000–9999 | Assigned | FOREMOST TELECOMMUNICATIONS CORPORATION - TX | 319D | BUDA | TX |
| 2013-03-01 | 737-333-3XXX | 3000–3999 | Assigned | FOREMOST TELECOMMUNICATIONS CORPORATION - TX | 319D | AUSTIN | TX |
| 2013-02-19 | 737-777-7XXX | 7000–7999 | Assigned | FOREMOST TELECOMMUNICATIONS CORPORATION - TX | 319D | LEANDER | TX |
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.