NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

0 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, all time — NPA 843
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 449
ONVOY, LLC - SC 446
NEW CINGULAR WIRELESS PCS, LLC - GA 361
BANDWIDTH.COM CLEC, LLC - SC 309
SUNCOM DBA T-MOBILE USA 268
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
2011-10-21 843-638-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C ST GEORGE SC
2011-10-21 843-917-2XXX 2000–2999Assigned AT&T ENTERPRISES, LLC 516C HARTSVILLE SC
2011-10-20 843-507-7XXX 7000–7999Assigned AT&T ENTERPRISES, LLC 516C NEWTONVL SC
2011-10-12 843-286-7XXX 7000–7999Assigned SUNCOM DBA T-MOBILE USA 8645 MYRTLE BCH SC
2011-10-12 843-286-8XXX 8000–8999Assigned SUNCOM DBA T-MOBILE USA 8645 MYRTLE BCH SC
2011-10-12 843-619-5XXX 5000–5999Assigned SUNCOM DBA T-MOBILE USA 8645 CHARLESTON SC
2011-10-12 843-619-8XXX 8000–8999Assigned SUNCOM DBA T-MOBILE USA 8645 CHARLESTON SC
2011-10-12 843-619-9XXX 9000–9999Assigned SUNCOM DBA T-MOBILE USA 8645 CHARLESTON SC
2011-10-12 843-641-8XXX 8000–8999Assigned SUNCOM DBA T-MOBILE USA 8645 CHARLESTON SC
2011-10-12 843-641-9XXX 9000–9999Assigned SUNCOM DBA T-MOBILE USA 8645 CHARLESTON SC
2011-10-10 843-593-1XXX 1000–1999Assigned POWERTEL ATLANTA LICENSES, INC. 7473 BEAUFORT SC
2011-10-10 843-593-2XXX 2000–2999Assigned POWERTEL ATLANTA LICENSES, INC. 7473 BEAUFORT SC
2011-10-10 843-593-3XXX 3000–3999Assigned POWERTEL ATLANTA LICENSES, INC. 7473 BEAUFORT SC
2011-10-10 843-593-4XXX 4000–4999Assigned POWERTEL ATLANTA LICENSES, INC. 7473 BEAUFORT SC
2011-10-10 843-593-5XXX 5000–5999Assigned POWERTEL ATLANTA LICENSES, INC. 7473 BEAUFORT SC
2011-10-07 843-432-6XXX 6000–6999Assigned SUNCOM DBA T-MOBILE USA 8645 FLORENCE SC
2011-10-07 843-432-7XXX 7000–7999Assigned SUNCOM DBA T-MOBILE USA 8645 FLORENCE SC
2011-10-03 843-373-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 SCRANTON SC
2011-09-13 843-625-5XXX 5000–5999Assigned SOUTH CAROLINA NET, INC. - SC 1784 JOHNSONVL SC
2011-09-12 843-898-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 WALTERBORO SC
2011-08-17 843-256-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F ISLE PALMS SC
2011-08-17 843-603-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F EDISTO IS SC
2011-08-17 843-603-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F EDISTO IS SC
2011-08-17 843-732-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F SULLIVNSIS SC
2011-08-17 843-732-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F SULLIVNSIS SC
2011-08-16 843-273-0XXX 0000–0999Assigned TWC IP ENABLED SERVICES, LLC 793K NMYRTLEBCH SC
2011-08-12 843-516-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 WMYRTLEBCH SC
2011-08-12 843-516-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 WMYRTLEBCH SC
2011-08-11 843-641-4XXX 4000–4999Assigned BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 CHARLESTON SC
2011-08-11 843-641-5XXX 5000–5999Assigned BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 CHARLESTON SC
2011-08-11 843-641-6XXX 6000–6999Assigned BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 CHARLESTON SC
2011-08-08 843-808-9XXX 9000–9999Assigned TWC IP ENABLED SERVICES, LLC 793K MYRTLE BCH SC
2011-08-04 843-593-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F BEAUFORT SC
2011-08-01 843-900-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F SUMMERVL SC
2011-07-27 843-284-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F MTPLEASANT SC
2011-07-27 843-636-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F ST GEORGE SC
2011-07-26 843-295-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 HILTONHEAD SC
2011-07-26 843-375-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - SC 5258 MTPLEASANT SC
2011-07-26 843-641-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J CHARLESTON SC
2011-07-26 843-934-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MONCKS COR SC
2011-07-19 843-284-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F MTPLEASANT SC
2011-07-19 843-580-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F FOLLYBEACH SC
2011-07-12 843-321-3XXX 3000–3999Assigned POWERTEL ATLANTA LICENSES, INC. 7473 BEAUFORT SC
2011-07-12 843-321-5XXX 5000–5999Assigned POWERTEL ATLANTA LICENSES, INC. 7473 BEAUFORT SC
2011-07-12 843-694-5XXX 5000–5999Assigned POWERTEL ATLANTA LICENSES, INC. 7473 BEAUFORT SC
2011-07-08 843-540-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 BLUFFTON SC
2011-07-08 843-934-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 MONCKS COR SC
2011-06-30 843-213-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 MYRTLE BCH SC
2011-06-23 843-737-8XXX 8000–8999Assigned SOUTH CAROLINA NET, INC. - SC 1784 CHARLESTON SC
2011-06-22 843-536-2XXX 2000–2999Assigned SUNCOM DBA T-MOBILE USA 8645 FLORENCE 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.