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
2017-06-06 843-964-2XXX 2000–2999Assigned METROPCS, INC. 5562 MONCKS COR SC
2017-05-31 843-880-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA SC- LLC 635C FLOYDS SC
2017-05-18 843-941-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - SC 288B BEAUFORT SC
2017-05-12 843-712-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MYRTLE BCH SC
2017-05-12 843-712-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MYRTLE BCH SC
2017-05-04 843-620-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F HOLLYWOOD SC
2017-05-04 843-868-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F EDISTO IS SC
2017-04-27 843-996-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 CHARLESTON SC
2017-04-27 843-996-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 CHARLESTON SC
2017-04-27 843-996-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 CHARLESTON SC
2017-04-26 843-633-8XXX 8000–8999Assigned TELNYX LLC 073H FOLLYBEACH SC
2017-04-26 843-868-3XXX 3000–3999Assigned TELNYX LLC 073H EDISTO IS SC
2017-04-26 843-883-8XXX 8000–8999Assigned TELNYX LLC 073H SULLIVNSIS SC
2017-04-26 843-936-8XXX 8000–8999Assigned TELNYX LLC 073H MTPLEASANT SC
2017-04-26 843-996-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - SC 5258 CHARLESTON SC
2017-04-25 843-666-6XXX 6000–6999Assigned ONVOY, LLC - SC 548E CHARLESTON SC
2017-04-24 843-949-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 BLUFFTON SC
2017-04-17 843-999-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 MYRTLE BCH SC
2017-04-17 843-999-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 MYRTLE BCH SC
2017-04-17 843-999-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 MYRTLE BCH SC
2017-04-17 843-999-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 MYRTLE BCH SC
2017-04-14 843-548-9XXX 9000–9999Assigned TWC IP ENABLED SERVICES, LLC 793K LOWCOUNTRY SC
2017-04-07 843-996-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - SC 288B CHARLESTON SC
2017-04-06 843-427-2XXX 2000–2999Assigned SOUTH CAROLINA NET, INC. - SC 1784 NMYRTLEBCH SC
2017-04-06 843-594-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA SC- LLC 635C SUMMERVL SC
2017-04-06 843-594-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA SC- LLC 635C SUMMERVL SC
2017-04-06 843-594-8XXX 8000–8999Assigned TELEPORT COMMUNICATIONS AMERICA SC- LLC 635C SUMMERVL SC
2017-04-06 843-630-3XXX 3000–3999Assigned SOUTH CAROLINA NET, INC. - SC 1784 ANDREWS SC
2017-04-06 843-879-6XXX 6000–6999Assigned AT&T ENTERPRISES, LLC 516C SUMMERVL SC
2017-03-28 843-246-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 EASTCONWAY SC
2017-03-28 843-254-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 EASTCONWAY SC
2017-03-28 843-591-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 EASTCONWAY SC
2017-03-27 843-951-0XXX 0000–0999Assigned TWC IP ENABLED SERVICES, LLC 793K HARTSVILLE SC
2017-03-09 843-949-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BLUFFTON SC
2017-03-07 843-964-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 MONCKS COR SC
2017-03-06 843-227-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BLUFFTON SC
2017-03-06 843-698-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA SC- LLC 635C EASTCONWAY SC
2017-03-06 843-947-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA SC- LLC 635C MURELSINLT SC
2017-03-01 843-712-4XXX 4000–4999Assigned METROPCS, INC. 5562 MYRTLE BCH SC
2017-03-01 843-890-7XXX 7000–7999Assigned FRONTIER COMMUNICATIONS OF THE CAROLINAS INC. - SC 4335 HOLLYWOOD SC
2017-02-27 843-584-0XXX 0000–0999Assigned METROPCS, INC. 5562 WALTERBORO SC
2017-02-27 843-964-9XXX 9000–9999Assigned METROPCS, INC. 5562 MONCKS COR SC
2017-02-21 843-474-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F LAUREL BAY SC
2017-02-21 843-584-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F WALTERBORO SC
2017-02-21 843-584-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F WALTERBORO SC
2017-02-07 843-459-6XXX 6000–6999Assigned METROPCS, INC. 5562 CHARLESTON SC
2017-01-30 843-584-3XXX 3000–3999Assigned METROPCS, INC. 5562 WALTERBORO SC
2017-01-20 843-909-6XXX 6000–6999Assigned SUNCOM DBA T-MOBILE USA 8645 NWALTERBOR SC
2017-01-11 843-698-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 EASTCONWAY SC
2017-01-04 843-630-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 ANDREWS 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.