NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

7 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/20/2026

Full prefixes (NXX) Thousands-blocks (1,000-number pools)

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, last 30 days — NPA 803
NEW CINGULAR WIRELESS PCS, LLC - GA 4
HD CARRIER LLC 2
ONVOY, LLC - SC 1
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
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Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2011-05-10 803-616-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 ROCK HILL SC
2011-04-27 803-537-2XXX 2000–2999Assigned METROPCS, INC. 5562 NEWBERRY SC
2011-04-27 803-549-4XXX 4000–4999Assigned METROPCS, INC. 5562 CAMDEN SC
2011-04-27 803-597-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C NEWBERRY SC
2011-04-27 803-857-0XXX 0000–0999Assigned SUNCOM DBA T-MOBILE USA 8645 SANTEE SC
2011-04-27 803-885-0XXX 0000–0999Assigned FTC DIVERSIFIED SERVICES, INC. 4255 SUMTER SC
2011-04-27 803-885-1XXX 1000–1999Assigned FTC DIVERSIFIED SERVICES, INC. 4255 SUMTER SC
2011-04-27 803-885-2XXX 2000–2999Assigned FTC DIVERSIFIED SERVICES, INC. 4255 SUMTER SC
2011-04-27 803-885-3XXX 3000–3999Assigned FTC DIVERSIFIED SERVICES, INC. 4255 SUMTER SC
2011-04-27 803-885-4XXX 4000–4999Assigned FTC DIVERSIFIED SERVICES, INC. 4255 SUMTER SC
2011-04-27 803-885-5XXX 5000–5999Assigned FTC DIVERSIFIED SERVICES, INC. 4255 SUMTER SC
2011-04-27 803-885-6XXX 6000–6999Assigned FTC DIVERSIFIED SERVICES, INC. 4255 SUMTER SC
2011-04-27 803-885-7XXX 7000–7999Assigned FTC DIVERSIFIED SERVICES, INC. 4255 SUMTER SC
2011-04-27 803-885-8XXX 8000–8999Assigned FTC DIVERSIFIED SERVICES, INC. 4255 SUMTER SC
2011-04-27 803-885-9XXX 9000–9999Assigned FTC DIVERSIFIED SERVICES, INC. 4255 SUMTER SC
2011-04-20 803-520-0XXX 0000–0999Assigned TWC IP ENABLED SERVICES, LLC 793K LEXINGTON SC
2011-03-30 803-250-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA SC- LLC 635C COLUMBIA SC
2011-03-24 803-716-5XXX 5000–5999Assigned POWERTEL ATLANTA LICENSES, INC. 7473 AIKEN SC
2011-03-16 803-728-0XXX 0000–0999Assigned TWC IP ENABLED SERVICES, LLC 793K COLUMBIA SC
2011-03-15 803-200-3XXX 3000–3999Assigned SUNCOM DBA T-MOBILE USA 8645 COLUMBIA SC
2011-03-15 803-200-4XXX 4000–4999Assigned SUNCOM DBA T-MOBILE USA 8645 COLUMBIA SC
2011-03-15 803-200-5XXX 5000–5999Assigned METROPCS, INC. 5562 COLUMBIA SC
2011-03-15 803-200-6XXX 6000–6999Assigned METROPCS, INC. 5562 COLUMBIA SC
2011-03-15 803-200-7XXX 7000–7999Assigned SUNCOM DBA T-MOBILE USA 8645 COLUMBIA SC
2011-03-15 803-200-8XXX 8000–8999Assigned SUNCOM DBA T-MOBILE USA 8645 COLUMBIA SC
2011-03-15 803-200-9XXX 9000–9999Assigned SUNCOM DBA T-MOBILE USA 8645 COLUMBIA SC
2011-03-15 803-250-7XXX 7000–7999Assigned SUNCOM DBA T-MOBILE USA 8645 COLUMBIA SC
2011-03-15 803-250-8XXX 8000–8999Assigned SUNCOM DBA T-MOBILE USA 8645 COLUMBIA SC
2011-03-15 803-369-0XXX 0000–0999Assigned SUNCOM DBA T-MOBILE USA 8645 COLUMBIA SC
2011-03-15 803-369-1XXX 1000–1999Assigned SUNCOM DBA T-MOBILE USA 8645 COLUMBIA SC
2011-03-15 803-369-2XXX 2000–2999Assigned SUNCOM DBA T-MOBILE USA 8645 COLUMBIA SC
2011-03-15 803-369-4XXX 4000–4999Assigned SUNCOM DBA T-MOBILE USA 8645 COLUMBIA SC
2011-03-15 803-369-5XXX 5000–5999Assigned METROPCS, INC. 5562 COLUMBIA SC
2011-03-15 803-369-9XXX 9000–9999Assigned SUNCOM DBA T-MOBILE USA 8645 COLUMBIA SC
2011-03-15 803-457-6XXX 6000–6999Assigned SUNCOM DBA T-MOBILE USA 8645 COLUMBIA SC
2011-03-15 803-458-2XXX 2000–2999Assigned SUNCOM DBA T-MOBILE USA 8645 NO SUMTER SC
2011-03-15 803-458-3XXX 3000–3999Assigned SUNCOM DBA T-MOBILE USA 8645 NO SUMTER SC
2011-03-15 803-458-4XXX 4000–4999Assigned SUNCOM DBA T-MOBILE USA 8645 NO SUMTER SC
2011-03-15 803-458-5XXX 5000–5999Assigned SUNCOM DBA T-MOBILE USA 8645 NO SUMTER SC
2011-03-15 803-497-4XXX 4000–4999Assigned SUNCOM DBA T-MOBILE USA 8645 COLUMBIA SC
2011-03-15 803-514-6XXX 6000–6999Assigned POWERTEL ATLANTA LICENSES, INC. 7473 AIKEN SC
2011-03-15 803-514-7XXX 7000–7999Assigned POWERTEL ATLANTA LICENSES, INC. 7473 AIKEN SC
2011-03-15 803-514-9XXX 9000–9999Assigned POWERTEL ATLANTA LICENSES, INC. 7473 AIKEN SC
2011-03-15 803-521-8XXX 8000–8999Assigned SUNCOM DBA T-MOBILE USA 8645 COLUMBIA SC
2011-03-15 803-526-0XXX 0000–0999Assigned METROPCS, INC. 5562 YORK SC
2011-03-15 803-526-2XXX 2000–2999Assigned METROPCS, INC. 5562 YORK SC
2011-03-15 803-552-0XXX 0000–0999Assigned POWERTEL ATLANTA LICENSES, INC. 7473 AIKEN SC
2011-03-15 803-552-1XXX 1000–1999Assigned POWERTEL ATLANTA LICENSES, INC. 7473 AIKEN SC
2011-03-15 803-651-2XXX 2000–2999Assigned SUNCOM DBA T-MOBILE USA 8645 NO SUMTER SC
2011-03-11 803-380-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - SC 5258 BATH SC

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.