NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

7 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 803
NEW CINGULAR WIRELESS PCS, LLC - GA 4
HD CARRIER LLC 2
ONVOY, LLC - 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
2014-03-25 803-636-4XXX 4000–4999Assigned SUNCOM DBA T-MOBILE USA 8645 COLUMBIA SC
2014-03-12 803-570-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 ORANGEBURG SC
2014-03-07 803-307-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F BATESBURG SC
2014-03-07 803-402-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F WINNSBORO SC
2014-03-07 803-470-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F COLUMBIA SC
2014-03-07 803-470-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F COLUMBIA SC
2014-03-07 803-470-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F COLUMBIA SC
2014-03-07 803-470-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F COLUMBIA SC
2014-03-07 803-470-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F COLUMBIA SC
2014-03-07 803-470-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F COLUMBIA SC
2014-03-07 803-820-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F HICKORYGRV SC
2014-03-04 803-306-0XXX 0000–0999Assigned POWERTEL ATLANTA LICENSES, INC. 7473 AIKEN SC
2014-03-04 803-306-2XXX 2000–2999Assigned POWERTEL ATLANTA LICENSES, INC. 7473 AIKEN SC
2014-03-04 803-306-3XXX 3000–3999Assigned POWERTEL ATLANTA LICENSES, INC. 7473 AIKEN SC
2014-03-04 803-306-4XXX 4000–4999Assigned POWERTEL ATLANTA LICENSES, INC. 7473 AIKEN SC
2014-03-04 803-306-9XXX 9000–9999Assigned POWERTEL ATLANTA LICENSES, INC. 7473 AIKEN SC
2014-03-04 803-507-9XXX 9000–9999Assigned POWERTEL ATLANTA LICENSES, INC. 7473 AIKEN SC
2014-03-04 803-623-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 CHESTER SC
2014-03-04 803-662-5XXX 5000–5999Assigned SUNCOM DBA T-MOBILE USA 8645 ORANGEBURG SC
2014-03-04 803-997-1XXX 1000–1999Assigned SUNCOM DBA T-MOBILE USA 8645 ORANGEBURG SC
2014-03-03 803-596-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 ORANGEBURG SC
2014-03-03 803-869-0XXX 0000–0999Assigned SUNCOM DBA T-MOBILE USA 8645 NO SUMTER SC
2014-02-28 803-717-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - SC 8534 SHAWAFBHTS SC
2014-02-28 803-717-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - SC 8534 SHAWAFBHTS SC
2014-02-28 803-717-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - SC 8534 SHAWAFBHTS SC
2014-02-28 803-717-8XXX 8000–8999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - SC 8534 SHAWAFBHTS SC
2014-02-24 803-638-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J COLUMBIA SC
2014-02-21 803-306-1XXX 1000–1999Assigned ONVOY, LLC - SC 548E AIKEN SC
2014-02-20 803-655-4XXX 4000–4999Assigned SOUTH CAROLINA NET, INC. - SC 1784 STMATTHEWS SC
2014-02-10 803-567-4XXX 4000–4999Assigned PAETEC ITEL, LLC 829J COLUMBIA SC
2014-01-24 803-232-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA SC- LLC 635C GRANITEVL SC
2014-01-16 803-599-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J NO AUGUSTA SC
2014-01-14 803-602-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - SC 5258 COLUMBIA SC
2014-01-03 803-729-2XXX 2000–2999Assigned LEVEL 3 TELECOM OF SOUTH CAROLINA, LLC - SC 7273 CAMDEN SC
2013-12-13 803-232-7XXX 7000–7999Assigned ONVOY, LLC - SC 548E GRANITEVL SC
2013-12-13 803-302-3XXX 3000–3999Assigned ONVOY, LLC - SC 548E BEECH IS SC
2013-12-13 803-335-5XXX 5000–5999Assigned ONVOY, LLC - SC 548E AIKEN SC
2013-12-13 803-336-7XXX 7000–7999Assigned ONVOY, LLC - SC 548E EDGEFIELD SC
2013-12-13 803-368-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - SC 5258 OLAR SC
2013-12-13 803-594-4XXX 4000–4999Assigned ONVOY, LLC - SC 548E BATH SC
2013-12-13 803-599-3XXX 3000–3999Assigned ONVOY, LLC - SC 548E NO AUGUSTA SC
2013-12-13 803-618-4XXX 4000–4999Assigned ONVOY, LLC - SC 548E JOHNSTON SC
2013-12-13 803-632-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - SC 5258 FAIRFAX SC
2013-12-13 803-716-4XXX 4000–4999Assigned POWERTEL ATLANTA LICENSES, INC. 7473 AIKEN SC
2013-12-13 803-716-6XXX 6000–6999Assigned POWERTEL ATLANTA LICENSES, INC. 7473 AIKEN SC
2013-12-13 803-716-7XXX 7000–7999Assigned POWERTEL ATLANTA LICENSES, INC. 7473 AIKEN SC
2013-12-13 803-761-5XXX 5000–5999Assigned POWERTEL ATLANTA LICENSES, INC. 7473 AIKEN SC
2013-12-13 803-824-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - SC 5258 EHRHARDT SC
2013-12-13 803-829-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - SC 5258 BOWMAN SC
2013-12-13 803-857-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - SC 5258 SANTEE 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.