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
2019-05-30 803-913-8XXX 8000–8999Assigned ONVOY, LLC - SC 548E HAMPTON SC
2019-05-30 803-921-0XXX 0000–0999Assigned ONVOY, LLC - SC 548E EUTAWVILLE SC
2019-05-30 803-921-9XXX 9000–9999Assigned ONVOY, LLC - SC 548E EUTAWVILLE SC
2019-05-30 803-971-4XXX 4000–4999Assigned ONVOY, LLC - SC 548E HOLLY HILL SC
2019-05-30 803-974-7XXX 7000–7999Assigned ONVOY, LLC - SC 548E SANTEE SC
2019-05-30 803-974-8XXX 8000–8999Assigned ONVOY, LLC - SC 548E SANTEE SC
2019-05-30 803-989-7XXX 7000–7999Assigned ONVOY, LLC - SC 548E AIKEN SC
2019-05-17 803-756-7XXX 7000–7999Assigned SOUTH CAROLINA NET, INC. - SC 1784 LEXINGTON SC
2019-05-14 803-681-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F SHARON SC
2019-05-14 803-953-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F MANNING SC
2019-05-03 803-456-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F STMATTHEWS SC
2019-05-01 803-612-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 COLUMBIA SC
2019-05-01 803-748-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 COLUMBIA SC
2019-05-01 803-806-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 COLUMBIA SC
2019-05-01 803-973-3XXX 3000–3999Assigned ONVOY, LLC - SC 548E COLUMBIA SC
2019-04-26 803-866-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F OLAR SC
2019-04-25 803-393-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F JACKSON SC
2019-04-24 803-913-1XXX 1000–1999Assigned ONVOY, LLC - SC 548E HAMPTON SC
2019-04-24 803-991-4XXX 4000–4999Assigned ONVOY, LLC - SC 548E NO AUGUSTA SC
2019-04-22 803-525-8XXX 8000–8999Assigned ONVOY, LLC - SC 548E MILL CREEK SC
2019-04-22 803-525-9XXX 9000–9999Assigned ONVOY, LLC - SC 548E MILL CREEK SC
2019-04-22 803-656-2XXX 2000–2999Assigned ONVOY, LLC - SC 548E LK WYLIE W SC
2019-04-22 803-656-3XXX 3000–3999Assigned ONVOY, LLC - SC 548E LK WYLIE W SC
2019-04-22 803-670-7XXX 7000–7999Assigned ONVOY, LLC - SC 548E YORK SC
2019-04-22 803-670-9XXX 9000–9999Assigned ONVOY, LLC - SC 548E YORK SC
2019-04-22 803-681-8XXX 8000–8999Assigned ONVOY, LLC - SC 548E SHARON SC
2019-04-22 803-681-9XXX 9000–9999Assigned ONVOY, LLC - SC 548E SHARON SC
2019-04-22 803-752-8XXX 8000–8999Assigned ONVOY, LLC - SC 548E LAKE WYLIE SC
2019-04-22 803-752-9XXX 9000–9999Assigned ONVOY, LLC - SC 548E LAKE WYLIE SC
2019-04-22 803-836-8XXX 8000–8999Assigned ONVOY, LLC - SC 548E HICKORYGRV SC
2019-04-22 803-836-9XXX 9000–9999Assigned ONVOY, LLC - SC 548E HICKORYGRV SC
2019-04-11 803-440-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - SC 5258 COLUMBIA SC
2019-04-01 803-922-2XXX 2000–2999Assigned TERRA NOVA TELECOM INC. 145J COLUMBIA SC
2019-03-26 803-598-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F ELLOREE SC
2019-03-20 803-679-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F AIKEN SC
2019-03-07 803-977-2XXX 2000–2999Assigned METROPCS, INC. 5562 COLUMBIA SC
2019-03-05 803-989-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 AIKEN SC
2019-03-04 803-704-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA SC- LLC 635C COLUMBIA SC
2019-03-04 803-704-8XXX 8000–8999Assigned TELEPORT COMMUNICATIONS AMERICA SC- LLC 635C COLUMBIA SC
2019-02-27 803-659-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - SC 5258 ROCK HILL SC
2019-02-25 803-670-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F YORK SC
2019-02-25 803-670-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F YORK SC
2019-02-25 803-670-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F YORK SC
2019-02-13 803-868-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F BARNWELL SC
2019-02-13 803-868-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F BARNWELL SC
2019-02-13 803-868-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F BARNWELL SC
2019-02-13 803-868-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F BARNWELL SC
2019-02-13 803-868-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F BARNWELL SC
2019-02-13 803-868-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F BARNWELL SC
2019-02-06 803-416-0XXX 0000–0999Assigned TWC IP ENABLED SERVICES, LLC 793K LANCASTER 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.