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 507
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 |
|---|---|---|---|---|---|---|---|
| 2025-11-25 | 507-547-3XXX | 3000–3999 | Assigned | TEKSTAR COMMUNICATIONS, INC. | 4156 | LEROY | MN |
| 2025-11-25 | 507-563-3XXX | 3000–3999 | Assigned | TEKSTAR COMMUNICATIONS, INC. | 4156 | DEXTER | MN |
| 2025-11-25 | 507-809-3XXX | 3000–3999 | Assigned | TEKSTAR COMMUNICATIONS, INC. | 4156 | AUSTIN | MN |
| 2025-03-14 | 507-346-5XXX | 5000–5999 | Assigned | TEKSTAR COMMUNICATIONS, INC. | 4156 | SPRING VLY | MN |
| 2025-03-14 | 507-503-9XXX | 9000–9999 | Assigned | TEKSTAR COMMUNICATIONS, INC. | 4156 | ADAMS | MN |
| 2025-03-14 | 507-992-5XXX | 5000–5999 | Assigned | TEKSTAR COMMUNICATIONS, INC. | 4156 | COTTONWOOD | MN |
| 2022-09-09 | 507-490-6XXX | 6000–6999 | Assigned | TEKSTAR COMMUNICATIONS, INC. | 4156 | REDWOODFLS | MN |
| 2019-06-10 | 507-615-2XXX | 2000–2999 | Assigned | TEKSTAR COMMUNICATIONS, INC. | 4156 | WINONA | MN |
| 2018-09-11 | 507-620-3XXX | 3000–3999 | Assigned | TEKSTAR COMMUNICATIONS, INC. | 4156 | WESTBROOK | MN |
| 2014-04-07 | 507-735-1XXX | 1000–1999 | Assigned | TEKSTAR COMMUNICATIONS, INC. | 4156 | ROCHESTER | MN |
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.