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 803
New assignments by month
Sep 2026
Aug 2026
Jul 2026
Jun 2026
May 2026
Apr 2026
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Dec 2025
Nov 2025
Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2025-12-15 | 803-919-5XXX | 5000–5999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | SUMTER | SC |
| 2023-12-01 | 803-303-2XXX | 2000–2999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | BATESBURG | SC |
| 2023-08-10 | 803-303-1XXX | 1000–1999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | BATESBURG | SC |
| 2023-07-11 | 803-856-7XXX | 7000–7999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | BISHOPVL | SC |
| 2023-03-20 | 803-856-8XXX | 8000–8999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | BISHOPVL | SC |
| 2022-11-03 | 803-965-2XXX | 2000–2999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | CLOVER | SC |
| 2022-08-04 | 803-762-1XXX | 1000–1999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | LANCASTER | SC |
| 2022-02-24 | 803-745-0XXX | 0000–0999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | LANCASTER | SC |
| 2022-02-24 | 803-745-1XXX | 1000–1999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | LANCASTER | SC |
| 2022-02-24 | 803-745-3XXX | 3000–3999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | LANCASTER | SC |
| 2022-02-24 | 803-745-4XXX | 4000–4999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | LANCASTER | SC |
| 2022-01-18 | 803-651-7XXX | 7000–7999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | NO SUMTER | SC |
| 2022-01-18 | 803-869-2XXX | 2000–2999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | NO SUMTER | SC |
| 2022-01-18 | 803-869-3XXX | 3000–3999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | NO SUMTER | SC |
| 2022-01-18 | 803-869-5XXX | 5000–5999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | NO SUMTER | SC |
| 2022-01-18 | 803-869-7XXX | 7000–7999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | NO SUMTER | SC |
| 2022-01-18 | 803-869-9XXX | 9000–9999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | NO SUMTER | SC |
| 2021-12-17 | 803-955-1XXX | 1000–1999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | COLUMBIA | SC |
| 2021-12-13 | 803-558-3XXX | 3000–3999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | ROCK HILL | SC |
| 2021-12-13 | 803-558-6XXX | 6000–6999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | ROCK HILL | SC |
| 2021-12-13 | 803-558-7XXX | 7000–7999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | ROCK HILL | SC |
| 2021-12-13 | 803-970-5XXX | 5000–5999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | ROCK HILL | SC |
| 2021-12-07 | 803-696-6XXX | 6000–6999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | MANNING | SC |
| 2021-12-07 | 803-696-7XXX | 7000–7999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | MANNING | SC |
| 2021-11-15 | 803-745-9XXX | 9000–9999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | LANCASTER | SC |
| 2021-11-15 | 803-762-2XXX | 2000–2999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | LANCASTER | SC |
| 2021-11-09 | 803-856-2XXX | 2000–2999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | BISHOPVL | SC |
| 2021-11-09 | 803-856-3XXX | 3000–3999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | BISHOPVL | SC |
| 2021-09-23 | 803-809-8XXX | 8000–8999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | ORANGEBURG | SC |
| 2021-09-23 | 803-809-9XXX | 9000–9999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | ORANGEBURG | SC |
| 2021-09-01 | 803-970-3XXX | 3000–3999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | ROCK HILL | SC |
| 2021-09-01 | 803-970-4XXX | 4000–4999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | ROCK HILL | SC |
| 2021-08-25 | 803-239-9XXX | 9000–9999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | COLUMBIA | SC |
| 2021-08-25 | 803-949-1XXX | 1000–1999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | COLUMBIA | SC |
| 2021-08-25 | 803-949-5XXX | 5000–5999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | COLUMBIA | SC |
| 2021-06-18 | 803-949-6XXX | 6000–6999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | COLUMBIA | SC |
| 2021-06-18 | 803-949-7XXX | 7000–7999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | COLUMBIA | SC |
| 2021-06-18 | 803-949-8XXX | 8000–8999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | COLUMBIA | SC |
| 2021-06-18 | 803-949-9XXX | 9000–9999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | COLUMBIA | SC |
| 2021-03-01 | 803-696-2XXX | 2000–2999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | MANNING | SC |
| 2021-03-01 | 803-856-0XXX | 0000–0999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | BISHOPVL | SC |
| 2017-11-30 | 803-650-8XXX | 8000–8999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | FORT MILL | SC |
| 2017-06-22 | 803-674-9XXX | 9000–9999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | BATESBURG | SC |
| 2016-12-02 | 803-620-0XXX | 0000–0999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | YORK | SC |
| 2016-02-16 | 803-579-8XXX | 8000–8999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | ROCK HILL | SC |
| 2016-02-16 | 803-616-8XXX | 8000–8999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | ROCK HILL | SC |
| 2015-12-10 | 803-601-0XXX | 0000–0999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | CHESTER | SC |
| 2015-07-30 | 803-601-6XXX | 6000–6999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | CHESTER | SC |
| 2014-08-22 | 803-597-8XXX | 8000–8999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | NEWBERRY | SC |
| 2014-08-21 | 803-570-3XXX | 3000–3999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | ORANGEBURG | SC |
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.