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
2017-01-10 803-833-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 ROCK HILL SC
2017-01-10 803-992-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 ROCK HILL SC
2017-01-05 803-650-9XXX 9000–9999Assigned METROPCS, INC. 5562 FORT MILL SC
2016-12-30 803-915-2XXX 2000–2999Assigned METROPCS, INC. 5562 COLUMBIA SC
2016-12-19 803-722-1XXX 1000–1999Assigned SOUTH CAROLINA NET, INC. - SC 1784 COLUMBIA SC
2016-12-19 803-722-5XXX 5000–5999Assigned SOUTH CAROLINA NET, INC. - SC 1784 COLUMBIA SC
2016-12-19 803-989-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 AIKEN SC
2016-12-15 803-849-1XXX 1000–1999Assigned TELNYX LLC 073H COLUMBIA SC
2016-12-13 803-293-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 AIKEN SC
2016-12-12 803-833-1XXX 1000–1999Assigned SOUTH CAROLINA TELECOMM GRP HOLDINGS, LLC - SC 527H ROCK HILL SC
2016-12-12 803-833-5XXX 5000–5999Assigned SOUTH CAROLINA TELECOMM GRP HOLDINGS, LLC - SC 527H ROCK HILL SC
2016-12-09 803-841-1XXX 1000–1999Assigned SOUTH CAROLINA TELECOMM GRP HOLDINGS, LLC - SC 527H PELION SC
2016-12-09 803-841-5XXX 5000–5999Assigned SOUTH CAROLINA TELECOMM GRP HOLDINGS, LLC - SC 527H PELION SC
2016-12-07 803-848-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 SUMTER SC
2016-12-07 803-991-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 NO AUGUSTA SC
2016-12-02 803-620-0XXX 0000–0999Assigned SUNCOM DBA T-MOBILE USA 8645 YORK SC
2016-11-18 803-915-0XXX 0000–0999Assigned METROPCS, INC. 5562 COLUMBIA SC
2016-11-18 803-915-1XXX 1000–1999Assigned METROPCS, INC. 5562 COLUMBIA SC
2016-11-09 803-490-9XXX 9000–9999Assigned TWC IP ENABLED SERVICES, LLC 793K LEXINGTON SC
2016-11-04 803-915-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 COLUMBIA SC
2016-11-04 803-915-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 COLUMBIA SC
2016-11-04 803-915-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 COLUMBIA SC
2016-11-04 803-915-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 COLUMBIA SC
2016-11-04 803-915-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 COLUMBIA SC
2016-10-18 803-231-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 COLUMBIA SC
2016-10-18 803-862-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 COLUMBIA SC
2016-10-18 803-862-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 COLUMBIA SC
2016-09-29 803-615-6XXX 6000–6999Assigned ONVOY, LLC - SC 548E EDGEFIELD SC
2016-09-29 803-615-8XXX 8000–8999Assigned ONVOY, LLC - SC 548E EDGEFIELD SC
2016-09-16 803-630-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 CLOVER SC
2016-09-16 803-862-6XXX 6000–6999Assigned METROPCS, INC. 5562 COLUMBIA SC
2016-09-16 803-862-8XXX 8000–8999Assigned METROPCS, INC. 5562 COLUMBIA SC
2016-09-15 803-630-6XXX 6000–6999Assigned METROPCS, INC. 5562 CLOVER SC
2016-09-14 803-342-4XXX 4000–4999Assigned METROPCS, INC. 5562 LANCASTER SC
2016-09-14 803-693-6XXX 6000–6999Assigned METROPCS, INC. 5562 YORK SC
2016-09-09 803-862-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C COLUMBIA SC
2016-08-31 803-877-0XXX 0000–0999Assigned METROPCS, INC. 5562 NEWBERRY SC
2016-08-31 803-877-1XXX 1000–1999Assigned METROPCS, INC. 5562 NEWBERRY SC
2016-08-31 803-877-2XXX 2000–2999Assigned METROPCS, INC. 5562 NEWBERRY SC
2016-08-31 803-877-3XXX 3000–3999Assigned METROPCS, INC. 5562 NEWBERRY SC
2016-08-23 803-770-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F NEWELLENTN SC
2016-08-23 803-848-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F SUMTER SC
2016-08-11 803-862-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA SC- LLC 635C COLUMBIA SC
2016-08-09 803-862-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 COLUMBIA SC
2016-08-09 803-862-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 COLUMBIA SC
2016-08-08 803-757-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 SUMTER SC
2016-08-01 803-862-0XXX 0000–0999Assigned TWC IP ENABLED SERVICES, LLC 793K COLUMBIA SC
2016-08-01 803-862-1XXX 1000–1999Assigned TWC IP ENABLED SERVICES, LLC 793K COLUMBIA SC
2016-07-21 803-845-5XXX 5000–5999Assigned IDT AMERICA, CORP. - SC 467E AIKEN SC
2016-07-18 803-529-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F 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.