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
2019-05-30 843-350-8XXX 8000–8999Assigned ONVOY, LLC - SC 548E BLENHEIM SC
2019-05-30 843-350-9XXX 9000–9999Assigned ONVOY, LLC - SC 548E BLENHEIM SC
2019-05-30 843-396-0XXX 0000–0999Assigned ONVOY, LLC - SC 548E OLANTA SC
2019-05-30 843-396-8XXX 8000–8999Assigned ONVOY, LLC - SC 548E OLANTA SC
2019-05-30 843-417-9XXX 9000–9999Assigned ONVOY, LLC - SC 548E NMYRTLEBCH SC
2019-05-30 843-418-9XXX 9000–9999Assigned ONVOY, LLC - SC 548E LATTA SC
2019-05-30 843-427-3XXX 3000–3999Assigned ONVOY, LLC - SC 548E NMYRTLEBCH SC
2019-05-30 843-428-0XXX 0000–0999Assigned ONVOY, LLC - SC 548E CONWAY SC
2019-05-30 843-483-1XXX 1000–1999Assigned ONVOY, LLC - SC 548E JOHNSONVL SC
2019-05-30 843-483-8XXX 8000–8999Assigned ONVOY, LLC - SC 548E JOHNSONVL SC
2019-05-30 843-548-3XXX 3000–3999Assigned ONVOY, LLC - SC 548E LOWCOUNTRY SC
2019-05-30 843-548-5XXX 5000–5999Assigned ONVOY, LLC - SC 548E LOWCOUNTRY SC
2019-05-30 843-588-1XXX 1000–1999Assigned ONVOY, LLC - SC 548E FOLLYBEACH SC
2019-05-30 843-612-1XXX 1000–1999Assigned ONVOY, LLC - SC 548E ST HELENA SC
2019-05-30 843-612-8XXX 8000–8999Assigned ONVOY, LLC - SC 548E ST HELENA SC
2019-05-30 843-627-2XXX 2000–2999Assigned ONVOY, LLC - SC 548E DILLON SC
2019-05-30 843-632-5XXX 5000–5999Assigned ONVOY, LLC - SC 548E DILLON SC
2019-05-30 843-648-8XXX 8000–8999Assigned ONVOY, LLC - SC 548E FOLLYBEACH SC
2019-05-30 843-699-5XXX 5000–5999Assigned ONVOY, LLC - SC 548E LAKE CITY SC
2019-05-30 843-865-0XXX 0000–0999Assigned ONVOY, LLC - SC 548E CHERAW SC
2019-05-30 843-891-1XXX 1000–1999Assigned ONVOY, LLC - SC 548E LAUREL BAY SC
2019-05-30 843-891-8XXX 8000–8999Assigned ONVOY, LLC - SC 548E LAUREL BAY SC
2019-05-30 843-894-1XXX 1000–1999Assigned ONVOY, LLC - SC 548E PAWLEYS IS SC
2019-05-30 843-894-8XXX 8000–8999Assigned ONVOY, LLC - SC 548E PAWLEYS IS SC
2019-05-30 843-897-2XXX 2000–2999Assigned ONVOY, LLC - SC 548E BENNETTSVL SC
2019-05-30 843-897-5XXX 5000–5999Assigned ONVOY, LLC - SC 548E BENNETTSVL SC
2019-05-30 843-905-0XXX 0000–0999Assigned ONVOY, LLC - SC 548E PAMPLICO SC
2019-05-30 843-905-8XXX 8000–8999Assigned ONVOY, LLC - SC 548E PAMPLICO SC
2019-05-30 843-919-4XXX 4000–4999Assigned ONVOY, LLC - SC 548E TIMMONSVL SC
2019-05-30 843-919-9XXX 9000–9999Assigned ONVOY, LLC - SC 548E TIMMONSVL SC
2019-05-30 843-920-0XXX 0000–0999Assigned ONVOY, LLC - SC 548E HOLLYWOOD SC
2019-05-30 843-920-8XXX 8000–8999Assigned ONVOY, LLC - SC 548E HOLLYWOOD SC
2019-05-30 843-931-8XXX 8000–8999Assigned ONVOY, LLC - SC 548E ST GEORGE SC
2019-05-30 843-931-9XXX 9000–9999Assigned ONVOY, LLC - SC 548E ST GEORGE SC
2019-05-30 843-938-0XXX 0000–0999Assigned ONVOY, LLC - SC 548E HARTSVILLE SC
2019-05-30 843-938-1XXX 1000–1999Assigned ONVOY, LLC - SC 548E HARTSVILLE SC
2019-05-30 843-948-1XXX 1000–1999Assigned ONVOY, LLC - SC 548E LATTA SC
2019-05-30 843-960-0XXX 0000–0999Assigned ONVOY, LLC - SC 548E MCCOLL SC
2019-05-30 843-960-1XXX 1000–1999Assigned ONVOY, LLC - SC 548E MCCOLL SC
2019-05-30 843-962-1XXX 1000–1999Assigned ONVOY, LLC - SC 548E BEAUFORT SC
2019-05-30 843-969-0XXX 0000–0999Assigned ONVOY, LLC - SC 548E SULLIVNSIS SC
2019-05-30 843-969-8XXX 8000–8999Assigned ONVOY, LLC - SC 548E SULLIVNSIS SC
2019-05-30 843-977-0XXX 0000–0999Assigned ONVOY, LLC - SC 548E NICHOLS SC
2019-05-30 843-977-1XXX 1000–1999Assigned ONVOY, LLC - SC 548E NICHOLS SC
2019-05-30 843-989-6XXX 6000–6999Assigned ONVOY, LLC - SC 548E YEMASSEE SC
2019-05-30 843-989-9XXX 9000–9999Assigned ONVOY, LLC - SC 548E YEMASSEE SC
2019-05-09 843-605-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F BEAUFORT SC
2019-05-09 843-699-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F LAKE CITY SC
2019-05-07 843-942-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA SC- LLC 635C FLORENCE SC
2019-05-06 843-981-4XXX 4000–4999Assigned SUNCOM DBA T-MOBILE USA 8645 MTPLEASANT 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.