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
2018-11-15 843-823-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F CHARLESTON SC
2018-11-15 843-919-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F TIMMONSVL SC
2018-11-05 843-306-8XXX 8000–8999Assigned ONVOY, LLC - SC 548E CLIO SC
2018-11-05 843-306-9XXX 9000–9999Assigned ONVOY, LLC - SC 548E CLIO SC
2018-11-05 843-326-0XXX 0000–0999Assigned ONVOY, LLC - SC 548E LAMAR SC
2018-11-05 843-326-2XXX 2000–2999Assigned ONVOY, LLC - SC 548E LAMAR SC
2018-11-05 843-604-0XXX 0000–0999Assigned ONVOY, LLC - SC 548E BLENHEIM SC
2018-11-05 843-604-1XXX 1000–1999Assigned ONVOY, LLC - SC 548E BLENHEIM SC
2018-11-05 843-886-1XXX 1000–1999Assigned ONVOY, LLC - SC 548E ISLE PALMS SC
2018-11-05 843-890-8XXX 8000–8999Assigned ONVOY, LLC - SC 548E HOLLYWOOD SC
2018-11-05 843-989-8XXX 8000–8999Assigned ONVOY, LLC - SC 548E YEMASSEE SC
2018-11-02 843-969-9XXX 9000–9999Assigned PEERLESS NETWORK OF SOUTH CAROLINA, LLC - SC 098H SULLIVNSIS SC
2018-10-26 843-668-6XXX 6000–6999Assigned METROPCS, INC. 5562 COLLINSCK SC
2018-10-25 843-829-1XXX 1000–1999Assigned PEERLESS NETWORK OF SOUTH CAROLINA, LLC - SC 098H NEWTONVL SC
2018-10-24 843-256-1XXX 1000–1999Assigned PEERLESS NETWORK OF SOUTH CAROLINA, LLC - SC 098H ISLE PALMS SC
2018-10-24 843-594-5XXX 5000–5999Assigned PEERLESS NETWORK OF SOUTH CAROLINA, LLC - SC 098H SUMMERVL SC
2018-10-24 843-648-9XXX 9000–9999Assigned PEERLESS NETWORK OF SOUTH CAROLINA, LLC - SC 098H FOLLYBEACH SC
2018-10-24 843-869-6XXX 6000–6999Assigned PEERLESS NETWORK OF SOUTH CAROLINA, LLC - SC 098H EDISTO IS SC
2018-10-18 843-612-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F ST HELENA SC
2018-10-17 843-612-6XXX 6000–6999Assigned ONVOY, LLC - SC 548E ST HELENA SC
2018-10-10 843-487-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F DILLON SC
2018-10-08 843-459-9XXX 9000–9999Assigned NUSO, LLC 551G CHARLESTON SC
2018-10-08 843-666-8XXX 8000–8999Assigned NUSO, LLC 551G CHARLESTON SC
2018-10-08 843-823-1XXX 1000–1999Assigned NUSO, LLC 551G CHARLESTON SC
2018-10-08 843-823-8XXX 8000–8999Assigned NUSO, LLC 551G CHARLESTON SC
2018-10-08 843-823-9XXX 9000–9999Assigned NUSO, LLC 551G CHARLESTON SC
2018-10-08 843-867-0XXX 0000–0999Assigned NUSO, LLC 551G CHARLESTON SC
2018-10-08 843-867-1XXX 1000–1999Assigned NUSO, LLC 551G CHARLESTON SC
2018-10-08 843-965-0XXX 0000–0999Assigned NUSO, LLC 551G CHARLESTON SC
2018-10-08 843-965-1XXX 1000–1999Assigned NUSO, LLC 551G CHARLESTON SC
2018-10-08 843-974-0XXX 0000–0999Assigned NUSO, LLC 551G CHARLESTON SC
2018-10-08 843-977-6XXX 6000–6999Assigned ONVOY, LLC - SC 548E NICHOLS SC
2018-10-08 843-977-7XXX 7000–7999Assigned ONVOY, LLC - SC 548E NICHOLS SC
2018-10-08 843-977-8XXX 8000–8999Assigned ONVOY, LLC - SC 548E NICHOLS SC
2018-10-04 843-960-6XXX 6000–6999Assigned ONVOY, LLC - SC 548E MCCOLL SC
2018-10-04 843-960-7XXX 7000–7999Assigned ONVOY, LLC - SC 548E MCCOLL SC
2018-10-04 843-960-8XXX 8000–8999Assigned ONVOY, LLC - SC 548E MCCOLL SC
2018-10-04 843-966-6XXX 6000–6999Assigned ONVOY, LLC - SC 548E SOCIETY HL SC
2018-10-04 843-966-7XXX 7000–7999Assigned ONVOY, LLC - SC 548E SOCIETY HL SC
2018-10-04 843-966-8XXX 8000–8999Assigned ONVOY, LLC - SC 548E SOCIETY HL SC
2018-10-03 843-962-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 BEAUFORT SC
2018-10-01 843-897-6XXX 6000–6999Assigned ONVOY, LLC - SC 548E BENNETTSVL SC
2018-10-01 843-897-7XXX 7000–7999Assigned ONVOY, LLC - SC 548E BENNETTSVL SC
2018-10-01 843-897-8XXX 8000–8999Assigned ONVOY, LLC - SC 548E BENNETTSVL SC
2018-10-01 843-932-6XXX 6000–6999Assigned ONVOY, LLC - SC 548E GEORGETOWN SC
2018-10-01 843-932-7XXX 7000–7999Assigned ONVOY, LLC - SC 548E GEORGETOWN SC
2018-10-01 843-932-8XXX 8000–8999Assigned ONVOY, LLC - SC 548E GEORGETOWN SC
2018-10-01 843-938-6XXX 6000–6999Assigned ONVOY, LLC - SC 548E HARTSVILLE SC
2018-10-01 843-938-7XXX 7000–7999Assigned ONVOY, LLC - SC 548E HARTSVILLE SC
2018-10-01 843-938-8XXX 8000–8999Assigned ONVOY, LLC - SC 548E HARTSVILLE 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.