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
2017-10-19 803-745-5XXX 5000–5999Assigned SOUTH CAROLINA TELECOMM GRP HOLDINGS, LLC - SC 527H LANCASTER SC
2017-10-16 803-833-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 ROCK HILL SC
2017-10-16 803-833-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 ROCK HILL SC
2017-10-16 803-833-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 ROCK HILL SC
2017-10-16 803-833-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 ROCK HILL SC
2017-10-13 803-203-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA SC- LLC 635C ROCK HILL SC
2017-10-13 803-680-7XXX 7000–7999Assigned FRONTIER COMMUNICATIONS OF THE CAROLINAS INC. - SC 0526 JACKSON SC
2017-10-13 803-689-1XXX 1000–1999Assigned SOUTH CAROLINA TELECOMM GRP HOLDINGS, LLC - SC 527H LEWISVILLE SC
2017-10-13 803-697-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - SC 5258 CHESTER SC
2017-10-13 803-797-5XXX 5000–5999Assigned SOUTH CAROLINA TELECOMM GRP HOLDINGS, LLC - SC 527H HEATH SPG SC
2017-10-13 803-838-5XXX 5000–5999Assigned SOUTH CAROLINA TELECOMM GRP HOLDINGS, LLC - SC 527H RIDGE SPG SC
2017-10-13 803-852-5XXX 5000–5999Assigned SOUTH CAROLINA TELECOMM GRP HOLDINGS, LLC - SC 527H SWANSEA SC
2017-10-13 803-858-5XXX 5000–5999Assigned SOUTH CAROLINA TELECOMM GRP HOLDINGS, LLC - SC 527H PONDBRANCH SC
2017-10-12 803-869-8XXX 8000–8999Assigned SOUTH CAROLINA TELECOMM GRP HOLDINGS, LLC - SC 527H NO SUMTER SC
2017-10-06 803-376-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA SC- LLC 635C COLUMBIA SC
2017-10-04 803-855-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ORANGEBURG SC
2017-10-04 803-855-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ORANGEBURG SC
2017-10-04 803-855-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ORANGEBURG SC
2017-10-04 803-855-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ORANGEBURG SC
2017-10-04 803-855-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ORANGEBURG SC
2017-09-29 803-987-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ORANGEBURG SC
2017-09-29 803-987-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ORANGEBURG SC
2017-09-29 803-987-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ORANGEBURG SC
2017-09-29 803-987-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ORANGEBURG SC
2017-09-29 803-987-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ORANGEBURG SC
2017-09-22 803-915-3XXX 3000–3999Assigned METROPCS, INC. 5562 COLUMBIA SC
2017-09-22 803-915-4XXX 4000–4999Assigned METROPCS, INC. 5562 COLUMBIA SC
2017-09-20 803-881-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F COLUMBIA SC
2017-09-20 803-881-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F COLUMBIA SC
2017-09-20 803-988-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F COLUMBIA SC
2017-09-12 803-766-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 COLUMBIA SC
2017-09-12 803-766-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 COLUMBIA SC
2017-09-05 803-679-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 AIKEN SC
2017-09-05 803-825-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 MANNING SC
2017-09-01 803-281-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F WHITMIRE SC
2017-09-01 803-881-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - SC 8534 COLUMBIA SC
2017-08-31 803-906-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F BEECH IS SC
2017-08-30 803-766-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - SC 5258 COLUMBIA SC
2017-08-30 803-853-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 BISHOPVL SC
2017-08-30 803-991-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 NO AUGUSTA SC
2017-08-28 803-203-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 ROCK HILL SC
2017-08-28 803-203-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 ROCK HILL SC
2017-08-28 803-203-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 ROCK HILL SC
2017-08-28 803-203-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 ROCK HILL SC
2017-08-28 803-992-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - SC 5258 ROCK HILL SC
2017-08-11 803-722-4XXX 4000–4999Assigned TWC IP ENABLED SERVICES, LLC 793K COLUMBIA SC
2017-08-11 803-722-6XXX 6000–6999Assigned TWC IP ENABLED SERVICES, LLC 793K COLUMBIA SC
2017-08-11 803-722-7XXX 7000–7999Assigned TWC IP ENABLED SERVICES, LLC 793K COLUMBIA SC
2017-08-10 803-977-7XXX 7000–7999Assigned COMMIO, LLC 939H COLUMBIA SC
2017-07-28 803-766-1XXX 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.