NumberResearch Membership · Data 09/21/2026

Recent thousands-block assignments

0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/21/2026

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, all time — NPA 318
LEVEL 3 COMMUNICATIONS, LLC - LA 164
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
2023-08-23 318-907-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - LA 3232 WINNSBORO LA
2023-07-25 318-483-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - LA 3232 ALEXANDRIA LA
2023-02-10 318-781-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - LA 3232 ARCADIA LA
2022-09-29 318-873-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - LA 3232 ST JOSEPH LA
2021-02-17 318-941-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - LA 3232 SIMMESPORT LA
2021-02-17 318-985-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - LA 3232 MOREAUVL LA
2021-02-02 318-587-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - LA 3232 COTTONPORT LA
2020-07-14 318-794-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - LA 3232 ALEXANDRIA LA
2020-04-24 318-660-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - LA 3232 SPRINGHILL LA
2019-10-07 318-690-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - LA 3232 MONROE LA
2019-10-07 318-690-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - LA 3232 MONROE LA
2019-10-07 318-690-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - LA 3232 MONROE LA
2019-08-14 318-721-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - LA 3232 BERNICE LA
2019-07-22 318-692-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - LA 3232 MONROE LA
2019-03-19 318-731-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - LA 3232 VIVIAN LA
2018-05-24 318-399-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - LA 3232 SHREVEPORT LA
2017-08-09 318-474-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - LA 3232 TALLULAH LA
2017-08-09 318-488-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - LA 3232 DELHI LA
2017-08-09 318-502-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - LA 3232 COLUMBIA LA
2017-08-09 318-552-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - LA 3232 LKPROVIDNC LA
2017-08-09 318-624-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - LA 3232 HAYNESVL LA
2017-08-09 318-906-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - LA 3232 LOGANSPORT LA
2017-06-22 318-546-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - LA 3232 COTTON VLY LA
2017-06-20 318-666-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - LA 3232 SHREVEPORT LA
2016-10-11 318-383-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - LA 3232 SHREVEPORT LA
2016-03-29 318-545-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - LA 3232 ALEXANDRIA LA
2016-01-15 318-701-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - LA 3232 SHREVEPORT LA
2015-12-23 318-383-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - LA 3232 SHREVEPORT LA
2015-07-23 318-963-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - LA 3232 SHREVEPORT LA
2015-03-18 318-626-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - LA 3232 SHREVEPORT LA
2015-03-18 318-626-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - LA 3232 SHREVEPORT LA
2015-03-18 318-626-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - LA 3232 SHREVEPORT LA
2015-03-18 318-626-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - LA 3232 SHREVEPORT LA
2015-03-18 318-626-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - LA 3232 SHREVEPORT LA
2014-12-23 318-319-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - LA 3232 ALEXANDRIA LA
2014-12-19 318-513-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - LA 3232 RUSTON LA
2014-09-29 318-582-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - LA 3232 MONROE LA
2014-09-10 318-249-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - LA 3232 CHATHAM LA
2014-09-10 318-659-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - LA 3232 CALCASIEU LA
2014-09-09 318-534-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - LA 3232 TULLOS LA
2014-09-09 318-922-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - LA 3232 PLAUCHEVL LA
2014-08-22 318-894-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - LA 3232 RINGGOLD LA
2014-08-20 318-997-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - LA 3232 BORDELONVL LA
2014-08-19 318-223-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - LA 3232 RODESSA LA
2014-08-19 318-378-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - LA 3232 BELCHER LA
2014-08-19 318-846-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - LA 3232 SHONGALOO LA
2014-08-19 318-847-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - LA 3232 SAREPTA LA
2014-08-19 318-939-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - LA 3232 BIG CANE LA
2014-08-19 318-964-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - LA 3232 MANSURA LA
2014-08-18 318-246-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - LA 3232 HEBRON LA

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/21/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.