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 731
New assignments by month
Sep 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2022-11-03 | 731-289-5XXX | 5000–5999 | Assigned | METROPCS, INC. | 5562 | MEDINA | TN |
| 2022-09-20 | 731-630-3XXX | 3000–3999 | Assigned | METROPCS, INC. | 5562 | BROWNSVL | TN |
| 2022-09-08 | 731-289-7XXX | 7000–7999 | Assigned | METROPCS, INC. | 5562 | MEDINA | TN |
| 2022-09-08 | 731-289-9XXX | 9000–9999 | Assigned | METROPCS, INC. | 5562 | MEDINA | TN |
| 2022-08-03 | 731-289-3XXX | 3000–3999 | Assigned | METROPCS, INC. | 5562 | MEDINA | TN |
| 2022-06-13 | 731-991-0XXX | 0000–0999 | Assigned | METROPCS, INC. | 5562 | UNION CITY | TN |
| 2022-05-18 | 731-246-4XXX | 4000–4999 | Assigned | METROPCS, INC. | 5562 | UNION CITY | TN |
| 2022-05-18 | 731-592-7XXX | 7000–7999 | Assigned | METROPCS, INC. | 5562 | UNION CITY | TN |
| 2022-04-21 | 731-931-2XXX | 2000–2999 | Assigned | METROPCS, INC. | 5562 | DYERSBURG | TN |
| 2022-03-28 | 731-507-5XXX | 5000–5999 | Assigned | METROPCS, INC. | 5562 | UNION CITY | TN |
| 2022-03-28 | 731-507-8XXX | 8000–8999 | Assigned | METROPCS, INC. | 5562 | UNION CITY | TN |
| 2022-03-02 | 731-931-0XXX | 0000–0999 | Assigned | METROPCS, INC. | 5562 | DYERSBURG | TN |
| 2022-03-02 | 731-931-1XXX | 1000–1999 | Assigned | METROPCS, INC. | 5562 | DYERSBURG | TN |
| 2022-02-03 | 731-507-3XXX | 3000–3999 | Assigned | METROPCS, INC. | 5562 | UNION CITY | TN |
| 2022-02-03 | 731-507-4XXX | 4000–4999 | Assigned | METROPCS, INC. | 5562 | UNION CITY | TN |
| 2022-01-07 | 731-246-7XXX | 7000–7999 | Assigned | METROPCS, INC. | 5562 | UNION CITY | TN |
| 2022-01-07 | 731-507-1XXX | 1000–1999 | Assigned | METROPCS, INC. | 5562 | UNION CITY | TN |
| 2021-12-28 | 731-931-4XXX | 4000–4999 | Assigned | METROPCS, INC. | 5562 | DYERSBURG | TN |
| 2021-12-28 | 731-931-6XXX | 6000–6999 | Assigned | METROPCS, INC. | 5562 | DYERSBURG | TN |
| 2021-11-23 | 731-246-5XXX | 5000–5999 | Assigned | METROPCS, INC. | 5562 | UNION CITY | TN |
| 2021-11-23 | 731-246-6XXX | 6000–6999 | Assigned | METROPCS, INC. | 5562 | UNION CITY | TN |
| 2021-10-28 | 731-289-4XXX | 4000–4999 | Assigned | METROPCS, INC. | 5562 | MEDINA | TN |
| 2021-04-16 | 731-931-3XXX | 3000–3999 | Assigned | METROPCS, INC. | 5562 | DYERSBURG | TN |
| 2020-11-30 | 731-246-1XXX | 1000–1999 | Assigned | METROPCS, INC. | 5562 | UNION CITY | TN |
| 2018-02-28 | 731-777-8XXX | 8000–8999 | Assigned | METROPCS, INC. | 5562 | DYERSBURG | TN |
| 2017-12-12 | 731-467-3XXX | 3000–3999 | Assigned | METROPCS, INC. | 5562 | JACKSON | TN |
| 2017-02-08 | 731-507-2XXX | 2000–2999 | Assigned | METROPCS, INC. | 5562 | UNION CITY | TN |
| 2016-04-22 | 731-467-4XXX | 4000–4999 | Assigned | METROPCS, INC. | 5562 | JACKSON | TN |
| 2016-04-14 | 731-443-8XXX | 8000–8999 | Assigned | METROPCS, INC. | 5562 | BROWNSVL | TN |
| 2016-04-14 | 731-777-0XXX | 0000–0999 | Assigned | METROPCS, INC. | 5562 | DYERSBURG | TN |
| 2014-10-01 | 731-300-8XXX | 8000–8999 | Assigned | METROPCS, INC. | 5562 | JACKSON | TN |
| 2014-10-01 | 731-462-1XXX | 1000–1999 | Assigned | METROPCS, INC. | 5562 | MEDINA | TN |
| 2012-02-29 | 731-298-7XXX | 7000–7999 | Assigned | METROPCS, INC. | 5562 | JACKSON | TN |
| 2012-02-29 | 731-298-8XXX | 8000–8999 | Assigned | METROPCS, INC. | 5562 | JACKSON | TN |
| 2011-07-01 | 731-277-1XXX | 1000–1999 | Assigned | METROPCS, INC. | 5562 | BROWNSVL | TN |
| 2011-02-22 | 731-293-6XXX | 6000–6999 | Assigned | METROPCS, INC. | 5562 | JACKSON | TN |
| 2010-04-29 | 731-882-6XXX | 6000–6999 | Assigned | METROPCS, INC. | 5562 | DYERSBURG | TN |
| 2010-03-26 | 731-277-3XXX | 3000–3999 | Assigned | METROPCS, INC. | 5562 | BROWNSVL | TN |
| 2010-03-26 | 731-277-4XXX | 4000–4999 | Assigned | METROPCS, INC. | 5562 | BROWNSVL | TN |
| 2010-03-11 | 731-215-3XXX | 3000–3999 | Assigned | METROPCS, INC. | 5562 | JACKSON | TN |
| 2010-03-11 | 731-215-4XXX | 4000–4999 | Assigned | METROPCS, INC. | 5562 | JACKSON | TN |
| 2010-03-11 | 731-215-5XXX | 5000–5999 | Assigned | METROPCS, INC. | 5562 | JACKSON | TN |
| 2010-03-11 | 731-215-9XXX | 9000–9999 | Assigned | METROPCS, INC. | 5562 | JACKSON | TN |
| 2010-03-02 | 731-293-2XXX | 2000–2999 | Assigned | METROPCS, INC. | 5562 | JACKSON | TN |
| 2006-03-21 | 731-256-4XXX | 4000–4999 | Assigned | METROPCS, INC. | 5562 | JACKSON | TN |
| 2005-04-05 | 731-882-8XXX | 8000–8999 | Assigned | METROPCS, INC. | 5562 | DYERSBURG | TN |
| 2005-03-16 | 731-277-8XXX | 8000–8999 | Assigned | METROPCS, INC. | 5562 | BROWNSVL | TN |
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.