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
2012-01-23 864-478-9XXX 9000–9999Assigned SUNCOM DBA T-MOBILE USA 8645 GREENVILLE SC
2012-01-19 864-358-4XXX 4000–4999Assigned SUNCOM DBA T-MOBILE USA 8645 CLINTON SC
2012-01-19 864-358-6XXX 6000–6999Assigned SUNCOM DBA T-MOBILE USA 8645 CLINTON SC
2012-01-11 864-719-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C SALEM SC
2012-01-06 864-300-1XXX 1000–1999Assigned SUNCOM DBA T-MOBILE USA 8645 GAFFNEY SC
2012-01-06 864-435-0XXX 0000–0999Assigned SUNCOM DBA T-MOBILE USA 8645 SPARTANBG SC
2012-01-06 864-435-1XXX 1000–1999Assigned SUNCOM DBA T-MOBILE USA 8645 SPARTANBG SC
2012-01-06 864-722-7XXX 7000–7999Assigned SUNCOM DBA T-MOBILE USA 8645 CLEMSON SC
2011-12-29 864-364-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J SENECA SC
2011-12-22 864-301-2XXX 2000–2999Assigned BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 UNION SC
2011-12-22 864-301-3XXX 3000–3999Assigned BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 UNION SC
2011-12-21 864-447-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F CALHOUNFLS SC
2011-12-12 864-450-3XXX 3000–3999Assigned METROPCS, INC. 5562 GREENWOOD SC
2011-12-12 864-450-4XXX 4000–4999Assigned METROPCS, INC. 5562 GREENWOOD SC
2011-11-14 864-364-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 SENECA SC
2011-11-14 864-364-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 SENECA SC
2011-11-14 864-437-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ANDERSON SC
2011-11-09 864-450-0XXX 0000–0999Assigned SUNCOM DBA T-MOBILE USA 8645 GREENWOOD SC
2011-11-04 864-359-3XXX 3000–3999Assigned SOUTH CAROLINA NET, INC. - SC 1784 ANDERSON SC
2011-10-26 864-210-7XXX 7000–7999Assigned AT&T ENTERPRISES, LLC 516C HONEA PATH SC
2011-10-21 864-326-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 GREENVILLE SC
2011-10-21 864-326-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 GREENVILLE SC
2011-10-21 864-326-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 GREENVILLE SC
2011-10-18 864-359-4XXX 4000–4999Assigned SUNCOM DBA T-MOBILE USA 8645 ANDERSON SC
2011-10-18 864-359-5XXX 5000–5999Assigned SUNCOM DBA T-MOBILE USA 8645 ANDERSON SC
2011-10-17 864-605-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - SC 8534 GREENVILLE SC
2011-09-21 864-302-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F ABBEVILLE SC
2011-09-21 864-722-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 CLEMSON SC
2011-09-16 864-305-9XXX 9000–9999Assigned SUNCOM DBA T-MOBILE USA 8645 ANDERSON SC
2011-09-14 864-249-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F LYMAN SC
2011-09-14 864-610-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F TRAVESREST SC
2011-09-12 864-323-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 GREENWOOD SC
2011-09-07 864-345-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - SC 8534 SPARTANBG SC
2011-08-26 864-302-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F ABBEVILLE SC
2011-08-17 864-402-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F PELZER SC
2011-08-12 864-219-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BLACKSBURG SC
2011-08-12 864-441-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 UNION SC
2011-08-08 864-377-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 GREENWOOD SC
2011-08-01 864-326-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F GREENVILLE SC
2011-08-01 864-326-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F GREENVILLE SC
2011-07-28 864-502-5XXX 5000–5999Assigned BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 PENDLETON SC
2011-07-20 864-332-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F ANDERSON SC
2011-06-24 864-364-9XXX 9000–9999Assigned SUNCOM DBA T-MOBILE USA 8645 SENECA SC
2011-06-22 864-359-9XXX 9000–9999Assigned SUNCOM DBA T-MOBILE USA 8645 ANDERSON SC
2011-06-22 864-437-1XXX 1000–1999Assigned SUNCOM DBA T-MOBILE USA 8645 ANDERSON SC
2011-06-22 864-437-5XXX 5000–5999Assigned SUNCOM DBA T-MOBILE USA 8645 ANDERSON SC
2011-06-17 864-437-6XXX 6000–6999Assigned SUNCOM DBA T-MOBILE USA 8645 ANDERSON SC
2011-06-17 864-437-7XXX 7000–7999Assigned SUNCOM DBA T-MOBILE USA 8645 ANDERSON SC
2011-06-14 864-762-1XXX 1000–1999Assigned SUNCOM DBA T-MOBILE USA 8645 UNION SC
2011-06-13 864-396-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 GREENWOOD 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.