NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

6 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, last 30 days — NPA 864
BANDWIDTH.COM CLEC, LLC - SC 2
SUNCOM DBA T-MOBILE USA 1
NEW CINGULAR WIRELESS PCS, LLC - GA 1
MCIMETRO ACCESS TRANSMISSION SERVICES LLC - SC 1
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 1
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
2019-05-30 864-550-1XXX 1000–1999Assigned ONVOY, LLC - SC 548E MCCORMICK SC
2019-05-30 864-571-9XXX 9000–9999Assigned ONVOY, LLC - SC 548E WESTMINSTR SC
2019-05-30 864-625-5XXX 5000–5999Assigned PEERLESS NETWORK OF SOUTH CAROLINA, LLC - SC 098H PIEDMONT SC
2019-05-30 864-648-8XXX 8000–8999Assigned ONVOY, LLC - SC 548E WESTMINSTR SC
2019-05-30 864-668-1XXX 1000–1999Assigned ONVOY, LLC - SC 548E PICKENS SC
2019-05-30 864-668-8XXX 8000–8999Assigned ONVOY, LLC - SC 548E PICKENS SC
2019-05-30 864-697-1XXX 1000–1999Assigned ONVOY, LLC - SC 548E JOANNA SC
2019-05-30 864-713-8XXX 8000–8999Assigned ONVOY, LLC - SC 548E HONEA PATH SC
2019-05-30 864-713-9XXX 9000–9999Assigned ONVOY, LLC - SC 548E HONEA PATH SC
2019-05-30 864-756-8XXX 8000–8999Assigned ONVOY, LLC - SC 548E WOODRUFF SC
2019-05-30 864-756-9XXX 9000–9999Assigned ONVOY, LLC - SC 548E WOODRUFF SC
2019-05-30 864-766-8XXX 8000–8999Assigned ONVOY, LLC - SC 548E LAURENS SC
2019-05-30 864-772-1XXX 1000–1999Assigned PEERLESS NETWORK OF SOUTH CAROLINA, LLC - SC 098H ANDERSON SC
2019-05-30 864-814-7XXX 7000–7999Assigned ONVOY, LLC - SC 548E SPARTANBG SC
2019-05-30 864-874-1XXX 1000–1999Assigned ONVOY, LLC - SC 548E GREER SC
2019-05-30 864-874-9XXX 9000–9999Assigned ONVOY, LLC - SC 548E GREER SC
2019-05-30 864-900-4XXX 4000–4999Assigned ONVOY, LLC - SC 548E GREENVILLE SC
2019-05-30 864-900-5XXX 5000–5999Assigned ONVOY, LLC - SC 548E GREENVILLE SC
2019-05-30 864-900-6XXX 6000–6999Assigned ONVOY, LLC - SC 548E GREENVILLE SC
2019-05-30 864-977-0XXX 0000–0999Assigned ONVOY, LLC - SC 548E BLUE RIDGE SC
2019-05-30 864-977-9XXX 9000–9999Assigned ONVOY, LLC - SC 548E BLUE RIDGE SC
2019-05-30 864-983-0XXX 0000–0999Assigned ONVOY, LLC - SC 548E LAURENS SC
2019-05-09 864-531-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F FOUNTANINN SC
2019-05-09 864-532-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 ANDERSON SC
2019-05-09 864-548-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F CALHOUNFLS SC
2019-05-09 864-548-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F CALHOUNFLS SC
2019-04-25 864-535-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 GREENVILLE SC
2019-04-25 864-535-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 GREENVILLE SC
2019-04-25 864-535-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 GREENVILLE SC
2019-04-25 864-666-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 GREENVILLE SC
2019-04-24 864-383-4XXX 4000–4999Assigned ONVOY, LLC - SC 548E PACOLET SC
2019-04-22 864-936-6XXX 6000–6999Assigned ONVOY, LLC - SC 548E ANTIOCH SC
2019-04-22 864-936-9XXX 9000–9999Assigned ONVOY, LLC - SC 548E ANTIOCH SC
2019-04-05 864-499-5XXX 5000–5999Assigned ONVOY, LLC - SC 548E SENECA SC
2019-04-05 864-499-7XXX 7000–7999Assigned ONVOY, LLC - SC 548E SENECA SC
2019-04-05 864-532-2XXX 2000–2999Assigned ONVOY, LLC - SC 548E ANDERSON SC
2019-04-05 864-532-3XXX 3000–3999Assigned ONVOY, LLC - SC 548E ANDERSON SC
2019-04-05 864-532-7XXX 7000–7999Assigned ONVOY, LLC - SC 548E ANDERSON SC
2019-04-05 864-532-8XXX 8000–8999Assigned ONVOY, LLC - SC 548E ANDERSON SC
2019-04-05 864-532-9XXX 9000–9999Assigned ONVOY, LLC - SC 548E ANDERSON SC
2019-04-05 864-614-6XXX 6000–6999Assigned ONVOY, LLC - SC 548E SENECA SC
2019-04-01 864-773-1XXX 1000–1999Assigned SOUTH CAROLINA NET, INC. - SC 1784 TROY SC
2019-03-26 864-874-0XXX 0000–0999Assigned TELNYX LLC 073H GREER SC
2019-03-07 864-533-1XXX 1000–1999Assigned METROPCS, INC. 5562 CLEMSON SC
2019-03-07 864-535-1XXX 1000–1999Assigned METROPCS, INC. 5562 GREENVILLE SC
2019-03-07 864-814-6XXX 6000–6999Assigned METROPCS, INC. 5562 SPARTANBG SC
2019-02-26 864-432-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 SIMPSONVL SC
2019-02-26 864-432-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 SIMPSONVL SC
2019-02-21 864-666-6XXX 6000–6999Assigned TERRA NOVA TELECOM INC. 145J GREENVILLE SC
2019-02-12 864-535-0XXX 0000–0999Assigned PEERLESS NETWORK OF SOUTH CAROLINA, LLC - SC 098H GREENVILLE 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.