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
2008-08-13 803-931-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 COLUMBIA SC
2008-08-12 803-394-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 COLUMBIA SC
2008-08-08 803-621-2XXX 2000–2999Assigned IDT AMERICA, CORP. - SC 467E BARNWELL SC
2008-08-01 803-735-5XXX 5000–5999Assigned SUNCOM DBA T-MOBILE USA 8645 COLUMBIA SC
2008-07-31 803-460-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MANNING SC
2008-07-31 803-575-5XXX 5000–5999Assigned BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 CHPNLTLMTS SC
2008-07-31 803-575-6XXX 6000–6999Assigned BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 CHPNLTLMTS SC
2008-07-29 803-941-6XXX 6000–6999Assigned PAETEC ITEL, LLC 829J CHPNLTLMTS SC
2008-07-29 803-941-9XXX 9000–9999Assigned PAETEC ITEL, LLC 829J CHPNLTLMTS SC
2008-07-25 803-607-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 NO SUMTER SC
2008-07-23 803-661-6XXX 6000–6999Assigned TWC IP ENABLED SERVICES, LLC 793K COLUMBIA SC
2008-07-23 803-661-7XXX 7000–7999Assigned TWC IP ENABLED SERVICES, LLC 793K COLUMBIA SC
2008-07-23 803-661-8XXX 8000–8999Assigned TWC IP ENABLED SERVICES, LLC 793K COLUMBIA SC
2008-07-23 803-661-9XXX 9000–9999Assigned TWC IP ENABLED SERVICES, LLC 793K COLUMBIA SC
2008-07-17 803-455-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - SC 5258 BEECH IS SC
2008-07-11 803-272-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 CAMDEN SC
2008-07-11 803-272-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 CAMDEN SC
2008-07-08 803-451-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 COLUMBIA SC
2008-07-07 803-403-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - SC 5258 COLUMBIA SC
2008-07-07 803-403-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - SC 5258 COLUMBIA SC
2008-07-02 803-709-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BARNWELL SC
2008-06-26 803-370-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ROCK HILL SC
2008-06-26 803-412-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ROCK HILL SC
2008-06-19 803-451-4XXX 4000–4999Assigned PAETEC ITEL, LLC 829J COLUMBIA SC
2008-06-13 803-431-8XXX 8000–8999Assigned LEVEL 3 TELECOM OF SOUTH CAROLINA, LLC - SC 5344 FORT MILL SC
2008-06-13 803-578-0XXX 0000–0999Assigned LEVEL 3 TELECOM OF SOUTH CAROLINA, LLC - SC 5344 FORT MILL SC
2008-06-12 803-207-8XXX 8000–8999Assigned LEVEL 3 TELECOM OF SOUTH CAROLINA, LLC - SC 5344 ROCK HILL SC
2008-06-12 803-810-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 CLOVER SC
2008-06-06 803-445-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 COLUMBIA SC
2008-06-05 803-201-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 COLUMBIA SC
2008-06-05 803-207-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 ROCK HILL SC
2008-06-05 803-379-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 CHESTER SC
2008-06-05 803-634-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 NO AUGUSTA SC
2008-06-04 803-624-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 NO AUGUSTA SC
2008-05-19 803-875-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - SC 8534 EASTOVER SC
2008-05-16 803-633-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 WINNSBORO SC
2008-05-15 803-386-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F COLUMBIA SC
2008-05-15 803-399-2XXX 2000–2999Assigned WINDSTREAM SOUTH CAROLINA, INC. 0517 LEXINGTON SC
2008-05-15 803-399-3XXX 3000–3999Assigned WINDSTREAM SOUTH CAROLINA, INC. 0517 LEXINGTON SC
2008-05-15 803-399-4XXX 4000–4999Assigned WINDSTREAM SOUTH CAROLINA, INC. 0517 LEXINGTON SC
2008-05-15 803-399-5XXX 5000–5999Assigned WINDSTREAM SOUTH CAROLINA, INC. 0517 LEXINGTON SC
2008-05-15 803-399-6XXX 6000–6999Assigned WINDSTREAM SOUTH CAROLINA, INC. 0517 LEXINGTON SC
2008-05-15 803-574-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - SC 5258 SUMMERTON SC
2008-05-15 803-821-6XXX 6000–6999Assigned LEVEL 3 TELECOM OF SOUTH CAROLINA, LLC - SC 7273 LEXINGTON SC
2008-05-13 803-403-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 COLUMBIA SC
2008-05-13 803-403-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 COLUMBIA SC
2008-05-13 803-403-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 COLUMBIA SC
2008-05-13 803-403-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 COLUMBIA SC
2008-05-12 803-455-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - SC 5258 BEECH IS SC
2008-05-09 803-403-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 COLUMBIA 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.