NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

21 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 337
ONVOY, LLC - LA 17
NEW CINGULAR WIRELESS PCS, LLC - GA 2
CSC WIRELESS, LLC 2
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
Clear Download CSV ↓
Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2009-08-31 337-785-6XXX 6000–6999Assigned VOICESTREAM GSM I, LLC 150C CROWLEY LA
2009-08-25 337-707-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 LK CHARLES LA
2009-08-07 337-287-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 SULPHUR LA
2009-07-21 337-707-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 LK CHARLES LA
2009-07-21 337-707-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 LK CHARLES LA
2009-07-21 337-707-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 LK CHARLES LA
2009-07-21 337-707-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 LK CHARLES LA
2009-07-21 337-707-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 LK CHARLES LA
2009-07-02 337-245-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 SWEET LAKE LA
2009-06-12 337-456-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J LAFAYETTE LA
2009-06-10 337-517-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ABBEVILLE LA
2009-05-22 337-451-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J YOUNGSVL LA
2009-05-13 337-214-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA LA - LLC 653C LK CHARLES LA
2009-04-16 337-429-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - LA 3232 LK CHARLES LA
2009-03-09 337-313-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA LA - LLC 653C SULPHUR LA
2009-03-06 337-514-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - LA 3232 CROWLEY LA
2009-03-04 337-321-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J NEW IBERIA LA
2009-02-24 337-428-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 JEANERETTE LA
2009-02-19 337-205-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 LAFAYETTE LA
2009-02-19 337-423-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 LEESVILLE LA
2009-02-19 337-784-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 CROWLEY LA
2009-02-04 337-290-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 OPELOUSAS LA
2009-02-04 337-517-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ABBEVILLE LA
2009-02-04 337-769-6XXX 6000–6999Assigned LEVEL 3 TELECOM OF LOUISIANA, LLC - LA 7488 LAFAYETTE LA
2009-01-15 337-423-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 LEESVILLE LA
2009-01-15 337-459-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 VL PLATTE LA
2009-01-05 337-446-0XXX 0000–0999Assigned ONVOY, LLC - LA 749E LAFAYETTE LA
2009-01-05 337-456-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J LAFAYETTE LA
2008-12-31 337-385-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - LA 3232 ABBEVILLE LA
2008-12-18 337-656-2XXX 2000–2999Assigned CEBRIDGE TELECOM LA, LLC D/B/A SUDDENLINK COMM LA 260H LK CHARLES LA
2008-12-17 337-214-3XXX 3000–3999Assigned VOICESTREAM GSM I, LLC 150C LK CHARLES LA
2008-12-17 337-504-9XXX 9000–9999Assigned VOICESTREAM GSM I, LLC 150C LAFAYETTE LA
2008-12-17 337-564-9XXX 9000–9999Assigned VOICESTREAM GSM I, LLC 150C LK CHARLES LA
2008-12-04 337-312-6XXX 6000–6999Assigned BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 LK CHARLES LA
2008-12-04 337-401-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 DE RIDDER LA
2008-12-03 337-552-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BROUSSARD LA
2008-11-26 337-300-6XXX 6000–6999Assigned VOICESTREAM GSM I, LLC 150C ELTON LA
2008-11-20 337-287-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 SULPHUR LA
2008-11-20 337-354-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 LAFAYETTE LA
2008-11-20 337-680-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 STMARTINVL LA
2008-11-18 337-287-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - LA 153F SULPHUR LA
2008-11-18 337-335-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - LA 153F NEW IBERIA LA
2008-11-18 337-348-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - LA 153F DE RIDDER LA
2008-11-18 337-366-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - LA 153F LAFAYETTE LA
2008-11-18 337-366-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - LA 153F LAFAYETTE LA
2008-11-18 337-385-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - LA 153F ABBEVILLE LA
2008-11-18 337-391-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - LA 153F IOWA LA
2008-11-18 337-393-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - LA 153F RAYNE LA
2008-11-18 337-404-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - LA 153F LEESVILLE LA
2008-11-18 337-409-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - LA 153F VINTON LA

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.