NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026

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
2020-05-19 843-417-0XXX 0000–0999Assigned ONVOY, LLC - SC 548E NMYRTLEBCH SC
2020-05-19 843-428-6XXX 6000–6999Assigned ONVOY, LLC - SC 548E CONWAY SC
2020-05-19 843-428-7XXX 7000–7999Assigned ONVOY, LLC - SC 548E CONWAY SC
2020-05-18 843-380-5XXX 5000–5999Assigned ONVOY, LLC - SC 548E JOHNSONVL SC
2020-05-18 843-380-6XXX 6000–6999Assigned ONVOY, LLC - SC 548E JOHNSONVL SC
2020-05-18 843-604-2XXX 2000–2999Assigned ONVOY, LLC - SC 548E BLENHEIM SC
2020-05-18 843-604-3XXX 3000–3999Assigned ONVOY, LLC - SC 548E BLENHEIM SC
2020-05-07 843-491-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F NMYRTLEBCH SC
2020-04-10 843-783-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 HARDEEVL SC
2020-04-08 843-653-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 EASTCONWAY SC
2020-04-08 843-653-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 EASTCONWAY SC
2020-04-08 843-653-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 EASTCONWAY SC
2020-04-08 843-703-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 CHERAW SC
2020-04-08 843-703-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 CHERAW SC
2020-04-03 843-964-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 MONCKS COR SC
2020-03-31 843-983-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F ANDREWS SC
2020-03-30 843-809-4XXX 4000–4999Assigned METROPCS, INC. 5562 MONCKS COR SC
2020-03-20 843-632-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 DILLON SC
2020-03-20 843-632-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 DILLON SC
2020-03-20 843-845-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 DILLON SC
2020-03-11 843-625-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F JOHNSONVL SC
2020-03-06 843-929-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 BEAUFORT SC
2020-03-06 843-962-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 BEAUFORT SC
2020-03-06 843-962-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 BEAUFORT SC
2020-03-06 843-962-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 BEAUFORT SC
2020-03-04 843-769-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 CHARLESTON SC
2020-03-04 843-805-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 CHARLESTON SC
2020-03-04 843-852-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 CHARLESTON SC
2020-02-25 843-755-8XXX 8000–8999Assigned TELEPORT COMMUNICATIONS AMERICA SC- LLC 635C SOCIETY HL SC
2020-02-21 843-400-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA SC- LLC 635C MCCOLL SC
2020-02-12 843-299-9XXX 9000–9999Assigned FRACTEL, LLC 965H MURELSINLT SC
2020-02-07 843-428-2XXX 2000–2999Assigned ONVOY, LLC - SC 548E CONWAY SC
2020-02-07 843-428-3XXX 3000–3999Assigned ONVOY, LLC - SC 548E CONWAY SC
2020-02-07 843-428-4XXX 4000–4999Assigned ONVOY, LLC - SC 548E CONWAY SC
2020-02-07 843-428-5XXX 5000–5999Assigned ONVOY, LLC - SC 548E CONWAY SC
2020-02-05 843-288-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - SC 5258 HARDEEVL SC
2020-02-05 843-895-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - SC 5258 HILTONHEAD SC
2020-01-30 843-548-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F LOWCOUNTRY SC
2020-01-16 843-621-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 FLORENCE SC
2020-01-16 843-758-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 FLORENCE SC
2020-01-14 843-809-3XXX 3000–3999Assigned SUNCOM DBA T-MOBILE USA 8645 MONCKS COR SC
2020-01-10 843-966-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F SOCIETY HL SC
2020-01-10 843-984-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA SC- LLC 635C MTPLEASANT SC
2019-12-17 843-823-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F CHARLESTON SC
2019-12-17 843-867-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F CHARLESTON SC
2019-12-17 843-867-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F CHARLESTON SC
2019-12-17 843-867-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F CHARLESTON SC
2019-12-16 843-891-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J LAUREL BAY SC
2019-12-12 843-648-5XXX 5000–5999Assigned TELNYX LLC 073H FOLLYBEACH SC
2019-11-20 843-892-4XXX 4000–4999Assigned PEERLESS NETWORK OF SOUTH CAROLINA, LLC - SC 098H ROWLAND SC

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.