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 843
New assignments by month
Sep 2026
Aug 2026
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Jun 2026
May 2026
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Dec 2025
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2024-09-10 | 843-783-1XXX | 1000–1999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | HARDEEVL | SC |
| 2024-02-28 | 843-632-9XXX | 9000–9999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | DILLON | SC |
| 2024-02-26 | 843-748-1XXX | 1000–1999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | COLLINSCK | SC |
| 2024-02-26 | 843-748-2XXX | 2000–2999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | COLLINSCK | SC |
| 2024-02-26 | 843-748-3XXX | 3000–3999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | COLLINSCK | SC |
| 2023-11-14 | 843-704-3XXX | 3000–3999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | MONCKS COR | SC |
| 2023-08-29 | 843-704-6XXX | 6000–6999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | MONCKS COR | SC |
| 2023-08-29 | 843-915-1XXX | 1000–1999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | CONWAY | SC |
| 2023-08-29 | 843-915-3XXX | 3000–3999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | CONWAY | SC |
| 2023-04-20 | 843-503-7XXX | 7000–7999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | WMYRTLEBCH | SC |
| 2023-04-20 | 843-995-9XXX | 9000–9999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | WMYRTLEBCH | SC |
| 2023-04-06 | 843-465-4XXX | 4000–4999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | CONWAY | SC |
| 2023-03-29 | 843-279-1XXX | 1000–1999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | CONWAY | SC |
| 2023-01-05 | 843-484-1XXX | 1000–1999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | CONWAY | SC |
| 2023-01-05 | 843-484-8XXX | 8000–8999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | CONWAY | SC |
| 2022-12-06 | 843-809-7XXX | 7000–7999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | MONCKS COR | SC |
| 2022-07-29 | 843-288-5XXX | 5000–5999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | HARDEEVL | SC |
| 2022-07-29 | 843-288-7XXX | 7000–7999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | HARDEEVL | SC |
| 2022-04-20 | 843-220-8XXX | 8000–8999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | EASTCONWAY | SC |
| 2022-04-20 | 843-220-9XXX | 9000–9999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | EASTCONWAY | SC |
| 2022-03-30 | 843-289-6XXX | 6000–6999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | MARION | SC |
| 2022-03-30 | 843-765-6XXX | 6000–6999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | MARION | SC |
| 2022-03-30 | 843-765-9XXX | 9000–9999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | MARION | SC |
| 2022-02-28 | 843-739-5XXX | 5000–5999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | NWALTERBOR | SC |
| 2022-02-28 | 843-739-6XXX | 6000–6999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | NWALTERBOR | SC |
| 2022-02-28 | 843-739-7XXX | 7000–7999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | NWALTERBOR | SC |
| 2022-02-28 | 843-739-8XXX | 8000–8999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | NWALTERBOR | SC |
| 2021-09-03 | 843-739-0XXX | 0000–0999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | NWALTERBOR | SC |
| 2021-09-03 | 843-739-9XXX | 9000–9999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | NWALTERBOR | SC |
| 2021-08-10 | 843-653-6XXX | 6000–6999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | EASTCONWAY | SC |
| 2021-08-10 | 843-653-7XXX | 7000–7999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | EASTCONWAY | SC |
| 2021-06-18 | 843-653-2XXX | 2000–2999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | EASTCONWAY | SC |
| 2021-06-18 | 843-653-5XXX | 5000–5999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | EASTCONWAY | SC |
| 2020-11-11 | 843-809-9XXX | 9000–9999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | MONCKS COR | SC |
| 2020-11-11 | 843-981-2XXX | 2000–2999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | MTPLEASANT | SC |
| 2020-11-11 | 843-981-6XXX | 6000–6999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | MTPLEASANT | SC |
| 2020-01-14 | 843-809-3XXX | 3000–3999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | MONCKS COR | SC |
| 2019-05-06 | 843-981-4XXX | 4000–4999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | MTPLEASANT | SC |
| 2019-05-06 | 843-981-9XXX | 9000–9999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | MTPLEASANT | SC |
| 2017-06-12 | 843-653-9XXX | 9000–9999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | EASTCONWAY | SC |
| 2017-01-20 | 843-909-6XXX | 6000–6999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | NWALTERBOR | SC |
| 2016-06-07 | 843-254-6XXX | 6000–6999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | EASTCONWAY | SC |
| 2015-10-30 | 843-227-6XXX | 6000–6999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | BLUFFTON | SC |
| 2014-12-05 | 843-291-5XXX | 5000–5999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | MONCKS COR | SC |
| 2014-12-05 | 843-291-6XXX | 6000–6999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | MONCKS COR | SC |
| 2014-11-25 | 843-254-3XXX | 3000–3999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | EASTCONWAY | SC |
| 2014-08-25 | 843-707-5XXX | 5000–5999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | BLUFFTON | SC |
| 2014-03-25 | 843-804-0XXX | 0000–0999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | CHARLESTON | SC |
| 2014-03-25 | 843-804-1XXX | 1000–1999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | CHARLESTON | SC |
| 2014-03-25 | 843-804-2XXX | 2000–2999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | CHARLESTON | 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.