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
2010-08-17 864-438-4XXX 4000–4999Assigned CHARTER IP ENABLED SERVICES, LLC 792K GREENVILLE SC
2010-08-11 864-437-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 ANDERSON SC
2010-08-06 864-202-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F ANDERSON SC
2010-08-06 864-643-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F CLEMSON SC
2010-07-30 864-214-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - SC 5258 GREENVILLE SC
2010-07-20 864-214-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - SC 5258 GREENVILLE SC
2010-07-12 864-757-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F SIMPSONVL SC
2010-07-08 864-762-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 UNION SC
2010-06-28 864-214-1XXX 1000–1999Assigned CHARTER IP ENABLED SERVICES, LLC 792K GREENVILLE SC
2010-06-18 864-478-1XXX 1000–1999Assigned PAETEC ITEL, LLC 829J GREENVILLE SC
2010-06-18 864-715-1XXX 1000–1999Assigned CHARTER IP ENABLED SERVICES, LLC 792K LAURENS SC
2010-06-14 864-437-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 ANDERSON SC
2010-05-27 864-438-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - SC 5258 GREENVILLE SC
2010-05-19 864-249-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F LYMAN SC
2010-05-19 864-280-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F SENECA SC
2010-05-19 864-334-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F GREER SC
2010-05-19 864-345-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F SPARTANBG SC
2010-05-19 864-558-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F GREENVILLE SC
2010-05-19 864-558-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F GREENVILLE SC
2010-05-19 864-558-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F GREENVILLE SC
2010-05-19 864-558-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F GREENVILLE SC
2010-05-19 864-610-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F TRAVESREST SC
2010-05-19 864-649-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F GAFFNEY SC
2010-05-19 864-810-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F EASLEY SC
2010-05-13 864-405-2XXX 2000–2999Assigned PBT COMMUNICATIONS, INC. - SC 3453 SALUDA SC
2010-05-11 864-450-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - SC 5258 GREENWOOD SC
2010-05-04 864-377-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 GREENWOOD SC
2010-04-12 864-538-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 GREENWOOD SC
2010-03-30 864-558-2XXX 2000–2999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - SC 8534 GREENVILLE SC
2010-03-22 864-202-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F ANDERSON SC
2010-03-11 864-358-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J CLINTON SC
2010-03-11 864-434-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 GREENVILLE SC
2010-03-11 864-434-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 GREENVILLE SC
2010-03-11 864-434-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 GREENVILLE SC
2010-03-11 864-434-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 GREENVILLE SC
2010-03-10 864-214-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - SC 5258 GREENVILLE SC
2010-03-08 864-318-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 ANDERSON SC
2010-03-08 864-347-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 SPARTANBG SC
2010-03-08 864-873-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 SENECA SC
2010-03-04 864-345-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F SPARTANBG SC
2010-03-04 864-491-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 BLACKSBURG SC
2010-03-03 864-377-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - SC 5258 GREENWOOD SC
2010-02-26 864-558-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - SC 8534 GREENVILLE SC
2010-02-16 864-256-2XXX 2000–2999Assigned LEVEL 3 TELECOM OF SOUTH CAROLINA, LLC - SC 7273 SPARTANBG SC
2010-02-11 864-466-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 UNION SC
2010-02-11 864-721-4XXX 4000–4999Assigned PAETEC ITEL, LLC 829J LYMAN SC
2010-02-11 864-721-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J LYMAN SC
2010-02-10 864-332-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 ANDERSON SC
2010-02-10 864-345-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 SPARTANBG SC
2010-02-10 864-345-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 SPARTANBG 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.