NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

21 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026

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
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Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2010-11-01 337-324-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - LA 8764 VINTON LA
2010-10-05 337-451-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - LA 3232 YOUNGSVL LA
2010-10-04 337-385-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ABBEVILLE LA
2010-10-04 337-476-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 SULPHUR LA
2010-09-27 337-534-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - LA 6505 LAFAYETTE LA
2010-09-21 337-246-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - LA 153F JENNINGS LA
2010-09-21 337-451-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - LA 153F YOUNGSVL LA
2010-09-21 337-546-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - LA 153F EUNICE LA
2010-09-16 337-393-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA LA - LLC 653C RAYNE LA
2010-09-07 337-550-6XXX 6000–6999Assigned PAETEC ITEL, LLC 829J EUNICE LA
2010-09-07 337-616-6XXX 6000–6999Assigned PAETEC ITEL, LLC 829J JENNINGS LA
2010-09-07 337-680-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J STMARTINVL LA
2010-08-20 337-427-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - LA 6505 RAYNE LA
2010-08-17 337-335-6XXX 6000–6999Assigned METROPCS, INC. 5562 NEW IBERIA LA
2010-08-17 337-335-9XXX 9000–9999Assigned METROPCS, INC. 5562 NEW IBERIA LA
2010-08-10 337-428-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - LA 153F JEANERETTE LA
2010-08-10 337-552-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - LA 153F BROUSSARD LA
2010-08-10 337-873-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - LA 153F DUSON LA
2010-08-09 337-377-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - LA 153F LK CHARLES LA
2010-08-09 337-446-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - LA 153F LAFAYETTE LA
2010-08-05 337-292-3XXX 3000–3999Assigned VOICESTREAM GSM I, LLC 150C LK CHARLES LA
2010-08-05 337-426-2XXX 2000–2999Assigned VOICESTREAM GSM I, LLC 150C LK CHARLES LA
2010-07-29 337-470-0XXX 0000–0999Assigned BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 LAFAYETTE LA
2010-07-29 337-470-1XXX 1000–1999Assigned BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 LAFAYETTE LA
2010-07-29 337-470-2XXX 2000–2999Assigned BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 LAFAYETTE LA
2010-07-29 337-470-3XXX 3000–3999Assigned BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 LAFAYETTE LA
2010-07-29 337-470-4XXX 4000–4999Assigned BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 LAFAYETTE LA
2010-07-29 337-470-5XXX 5000–5999Assigned BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 LAFAYETTE LA
2010-07-29 337-470-6XXX 6000–6999Assigned BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 LAFAYETTE LA
2010-07-29 337-470-7XXX 7000–7999Assigned BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 LAFAYETTE LA
2010-07-29 337-470-8XXX 8000–8999Assigned BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 LAFAYETTE LA
2010-07-29 337-470-9XXX 9000–9999Assigned BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 LAFAYETTE LA
2010-07-21 337-366-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - LA 153F LAFAYETTE LA
2010-07-09 337-422-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ABBEVILLE LA
2010-07-08 337-348-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - LA 8764 DE RIDDER LA
2010-07-02 337-366-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - LA 6505 LAFAYETTE LA
2010-07-01 337-678-3XXX 3000–3999Assigned CHARTER IP ENABLED SERVICES, LLC 792K OPELOUSAS LA
2010-07-01 337-909-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J BREAUX BDG LA
2010-06-28 337-456-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J LAFAYETTE LA
2010-06-14 337-714-8XXX 8000–8999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - LA 8764 BROUSSARD LA
2010-06-11 337-534-4XXX 4000–4999Assigned LAFAYETTE CITY-PARISH CONSOLIDATED GOVERNMENT - LA 9002 LAFAYETTE LA
2010-06-09 337-202-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 DE RIDDER LA
2010-06-09 337-476-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - LA 153F SULPHUR LA
2010-05-25 337-202-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - LA 153F DE RIDDER LA
2010-05-25 337-246-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - LA 153F JENNINGS LA
2010-05-25 337-321-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - LA 153F NEW IBERIA LA
2010-05-25 337-327-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - LA 153F CROWLEY LA
2010-05-25 337-366-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - LA 153F LAFAYETTE LA
2010-05-25 337-381-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - LA 153F OPELOUSAS LA
2010-05-25 337-385-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - LA 153F ABBEVILLE LA

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.