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
2014-06-09 864-336-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F LYMAN SC
2014-06-06 864-603-3XXX 3000–3999Assigned AT&T ENTERPRISES, LLC 516C GREENVILLE SC
2014-06-06 864-729-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA SC- LLC 635C GREENVILLE SC
2014-06-03 864-520-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 GREENVILLE SC
2014-06-03 864-520-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 GREENVILLE SC
2014-06-03 864-520-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 GREENVILLE SC
2014-06-03 864-520-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 GREENVILLE SC
2014-05-23 864-447-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 CALHOUNFLS SC
2014-05-23 864-571-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F WESTMINSTR SC
2014-05-22 864-774-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F WILLIAMSTN SC
2014-05-20 864-321-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 GREENWOOD SC
2014-05-19 864-251-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F UNION SC
2014-05-19 864-614-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F SENECA SC
2014-05-19 864-916-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F WALHALLA SC
2014-05-16 864-397-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F PICKENS SC
2014-05-16 864-402-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F PELZER SC
2014-05-16 864-625-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F PIEDMONT SC
2014-05-16 864-670-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F WOODRUFF SC
2014-05-09 864-407-0XXX 0000–0999Assigned SUNCOM DBA T-MOBILE USA 8645 GREENWOOD SC
2014-05-09 864-407-1XXX 1000–1999Assigned SUNCOM DBA T-MOBILE USA 8645 GREENWOOD SC
2014-05-08 864-707-2XXX 2000–2999Assigned CHARTER IP ENABLED SERVICES, LLC 792K SPARTANBG SC
2014-05-08 864-939-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 CLINTON SC
2014-05-07 864-321-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 GREENWOOD SC
2014-05-05 864-399-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F SIMPSONVL SC
2014-05-05 864-881-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F SIMPSONVL SC
2014-05-02 864-340-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 LAURESRURL SC
2014-05-02 864-570-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 IVA SC
2014-05-02 864-602-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MCCORMICK SC
2014-05-02 864-625-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 PIEDMONT SC
2014-04-17 864-547-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 CLINTON SC
2014-04-17 864-601-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 FOUNTANINN SC
2014-04-17 864-812-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 GAFFNEY SC
2014-04-14 864-399-6XXX 6000–6999Assigned CHARTER IP ENABLED SERVICES, LLC 792K SIMPSONVL SC
2014-04-11 864-707-6XXX 6000–6999Assigned SUNCOM DBA T-MOBILE USA 8645 SPARTANBG SC
2014-04-11 864-707-7XXX 7000–7999Assigned SUNCOM DBA T-MOBILE USA 8645 SPARTANBG SC
2014-04-11 864-707-8XXX 8000–8999Assigned SUNCOM DBA T-MOBILE USA 8645 SPARTANBG SC
2014-04-10 864-407-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J GREENWOOD SC
2014-04-08 864-309-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 ANDERSON SC
2014-04-02 864-977-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA SC- LLC 635C BLUE RIDGE SC
2014-03-26 864-539-0XXX 0000–0999Assigned BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 SENECA SC
2014-03-26 864-539-1XXX 1000–1999Assigned BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 SENECA SC
2014-03-26 864-539-7XXX 7000–7999Assigned BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 SENECA SC
2014-03-26 864-539-8XXX 8000–8999Assigned BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 SENECA SC
2014-03-26 864-539-9XXX 9000–9999Assigned BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 SENECA SC
2014-03-21 864-340-0XXX 0000–0999Assigned SUNCOM DBA T-MOBILE USA 8645 LAURESRURL SC
2014-03-21 864-340-7XXX 7000–7999Assigned SUNCOM DBA T-MOBILE USA 8645 LAURESRURL SC
2014-03-19 864-210-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - SC 5258 HONEA PATH SC
2014-03-19 864-520-2XXX 2000–2999Assigned CHARTER IP ENABLED SERVICES, LLC 792K GREENVILLE SC
2014-03-12 864-844-8XXX 8000–8999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - SC 8534 ANDERSON SC
2014-03-10 864-305-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F ANDERSON 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.