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
2020-09-17 864-413-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 GREENWOOD SC
2020-09-17 864-854-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - SC 5258 GREENWOOD SC
2020-09-15 864-865-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 CENTRAL SC
2020-09-01 864-413-9XXX 9000–9999Assigned METROPCS, INC. 5562 GREENWOOD SC
2020-09-01 864-874-3XXX 3000–3999Assigned METROPCS, INC. 5562 GREER SC
2020-08-27 864-685-0XXX 0000–0999Assigned SUNCOM DBA T-MOBILE USA 8645 ANDERSON SC
2020-08-27 864-685-9XXX 9000–9999Assigned SUNCOM DBA T-MOBILE USA 8645 ANDERSON SC
2020-08-26 864-564-2XXX 2000–2999Assigned CHARTER IP ENABLED SERVICES, LLC 792K SPARTANBG SC
2020-08-24 864-581-0XXX 0000–0999Assigned SUNCOM DBA T-MOBILE USA 8645 ANDERSON SC
2020-08-24 864-581-1XXX 1000–1999Assigned SUNCOM DBA T-MOBILE USA 8645 ANDERSON SC
2020-08-24 864-581-4XXX 4000–4999Assigned SUNCOM DBA T-MOBILE USA 8645 ANDERSON SC
2020-08-24 864-581-6XXX 6000–6999Assigned SUNCOM DBA T-MOBILE USA 8645 ANDERSON SC
2020-08-17 864-794-7XXX 7000–7999Assigned TWILIO INTERNATIONAL, INC. 506J GREENVILLE SC
2020-08-13 864-406-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F COWPENS SC
2020-08-13 864-894-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 SIMPSONVL SC
2020-08-03 864-409-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 FOUNTANINN SC
2020-08-03 864-544-4XXX 4000–4999Assigned FRACTEL, LLC 965H LOCKHART SC
2020-08-03 864-733-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 GRAY COURT SC
2020-08-03 864-874-2XXX 2000–2999Assigned CHARTER IP ENABLED SERVICES, LLC 792K GREER SC
2020-07-23 864-652-2XXX 2000–2999Assigned CSC WIRELESS, LLC 425J GREENVILLE SC
2020-07-22 864-278-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 SPARTANBG SC
2020-07-22 864-278-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 SPARTANBG SC
2020-07-22 864-533-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 CLEMSON SC
2020-07-22 864-533-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 CLEMSON SC
2020-07-22 864-533-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 CLEMSON SC
2020-07-22 864-533-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 CLEMSON SC
2020-07-22 864-572-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 SPARTANBG SC
2020-07-22 864-572-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 SPARTANBG SC
2020-07-22 864-635-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 CLEMSON SC
2020-07-22 864-635-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 CLEMSON SC
2020-07-22 864-635-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 CLEMSON SC
2020-07-21 864-584-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 GREENVILLE SC
2020-07-21 864-584-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 GREENVILLE SC
2020-07-21 864-584-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 GREENVILLE SC
2020-07-07 864-894-2XXX 2000–2999Assigned ONVOY, LLC - SC 548E SIMPSONVL SC
2020-07-07 864-894-3XXX 3000–3999Assigned ONVOY, LLC - SC 548E SIMPSONVL SC
2020-07-02 864-702-2XXX 2000–2999Assigned ONVOY, LLC - SC 548E LANDRUM SC
2020-07-02 864-702-3XXX 3000–3999Assigned ONVOY, LLC - SC 548E LANDRUM SC
2020-07-02 864-806-2XXX 2000–2999Assigned ONVOY, LLC - SC 548E INMAN SC
2020-07-02 864-806-3XXX 3000–3999Assigned ONVOY, LLC - SC 548E INMAN SC
2020-06-29 864-664-2XXX 2000–2999Assigned ONVOY, LLC - SC 548E HONEA PATH SC
2020-06-29 864-664-3XXX 3000–3999Assigned ONVOY, LLC - SC 548E HONEA PATH SC
2020-06-29 864-863-7XXX 7000–7999Assigned ONVOY, LLC - SC 548E GAFFNEY SC
2020-06-29 864-863-8XXX 8000–8999Assigned ONVOY, LLC - SC 548E GAFFNEY SC
2020-06-24 864-810-5XXX 5000–5999Assigned ONVOY, LLC - SC 548E EASLEY SC
2020-06-18 864-533-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 CLEMSON SC
2020-06-18 864-549-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 GREENVILLE SC
2020-06-18 864-565-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 GREENVILLE SC
2020-06-18 864-565-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 GREENVILLE SC
2020-06-18 864-566-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 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.