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
2012-08-20 843-531-2XXX 2000–2999Assigned SUNCOM DBA T-MOBILE USA 8645 CHARLESTON SC
2012-08-20 843-531-3XXX 3000–3999Assigned SUNCOM DBA T-MOBILE USA 8645 CHARLESTON SC
2012-08-20 843-531-4XXX 4000–4999Assigned SUNCOM DBA T-MOBILE USA 8645 CHARLESTON SC
2012-08-07 843-256-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F ISLE PALMS SC
2012-08-03 843-353-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - SC 5258 MYRTLE BCH SC
2012-08-03 843-751-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - SC 5258 CHARLESTON SC
2012-07-24 843-714-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA SC- LLC 635C CHARLESTON SC
2012-07-20 843-461-8XXX 8000–8999Assigned PAETEC ITEL, LLC 829J GEORGETOWN SC
2012-07-19 843-580-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F FOLLYBEACH SC
2012-07-13 843-501-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F CHARLESTON SC
2012-07-13 843-592-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F BEAUFORT SC
2012-07-13 843-849-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F MTPLEASANT SC
2012-07-12 843-718-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J CHARLESTON SC
2012-07-12 843-818-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J CHARLESTON SC
2012-07-12 843-974-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J CHARLESTON SC
2012-07-11 843-703-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - SC 5258 CHERAW SC
2012-07-06 843-315-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 MYRTLE BCH SC
2012-07-06 843-315-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 MYRTLE BCH SC
2012-07-05 843-773-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - SC 5258 FLORENCE SC
2012-06-11 843-339-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 HARTSVILLE SC
2012-06-11 843-501-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F CHARLESTON SC
2012-06-11 843-510-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F WALTERBORO SC
2012-06-11 843-857-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 HARTSVILLE SC
2012-06-11 843-917-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 HARTSVILLE SC
2012-05-25 843-952-0XXX 0000–0999Assigned BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 CHARLESTON SC
2012-05-25 843-952-1XXX 1000–1999Assigned BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 CHARLESTON SC
2012-05-24 843-501-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F CHARLESTON SC
2012-05-21 843-279-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA SC- LLC 635C CONWAY SC
2012-05-21 843-314-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA SC- LLC 635C PAWLEYS IS SC
2012-05-21 843-904-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA SC- LLC 635C GEORGETOWN SC
2012-05-18 843-900-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F SUMMERVL SC
2012-05-11 843-202-0XXX 0000–0999Assigned COMCAST IP PHONE, LLC 318J CHARLESTON SC
2012-05-09 843-934-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MONCKS COR SC
2012-05-09 843-934-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MONCKS COR SC
2012-05-09 843-934-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MONCKS COR SC
2012-05-08 843-564-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F HOLLYWOOD SC
2012-05-08 843-580-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F FOLLYBEACH SC
2012-05-08 843-865-5XXX 5000–5999Assigned SOUTH CAROLINA NET, INC. - SC 1784 CHERAW SC
2012-04-27 843-589-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F YEMASSEE SC
2012-04-27 843-593-6XXX 6000–6999Assigned POWERTEL ATLANTA LICENSES, INC. 7473 BEAUFORT SC
2012-04-27 843-593-7XXX 7000–7999Assigned POWERTEL ATLANTA LICENSES, INC. 7473 BEAUFORT SC
2012-04-16 843-315-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 MYRTLE BCH SC
2012-04-16 843-315-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 MYRTLE BCH SC
2012-04-04 843-749-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 ST STEPHEN SC
2012-04-02 843-582-1XXX 1000–1999Assigned METROPCS, INC. 5562 MYRTLE BCH SC
2012-03-29 843-432-0XXX 0000–0999Assigned SUNCOM DBA T-MOBILE USA 8645 FLORENCE SC
2012-03-29 843-605-8XXX 8000–8999Assigned POWERTEL ATLANTA LICENSES, INC. 7473 BEAUFORT SC
2012-03-29 843-612-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J ST HELENA SC
2012-03-23 843-939-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 SCRANTON SC
2012-03-23 843-939-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 SCRANTON 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.