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
2006-06-20 337-378-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 LEESVILLE LA
2006-06-20 337-378-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 LEESVILLE LA
2006-05-16 337-335-1XXX 1000–1999Assigned LEVEL 3 TELECOM OF LOUISIANA, LLC - LA 7488 NEW IBERIA LA
2006-04-19 337-552-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BROUSSARD LA
2006-04-03 337-313-1XXX 1000–1999Assigned LEVEL 3 TELECOM OF LOUISIANA, LLC - LA 7488 SULPHUR LA
2006-04-03 337-330-1XXX 1000–1999Assigned LEVEL 3 TELECOM OF LOUISIANA, LLC - LA 7488 BROUSSARD LA
2006-03-28 337-718-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - LA 8764 LEESVILLE LA
2006-03-21 337-256-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 NEW IBERIA LA
2006-03-21 337-692-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 OPELOUSAS LA
2006-03-21 337-692-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 OPELOUSAS LA
2006-02-24 337-706-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J LAFAYETTE LA
2006-02-24 337-706-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J LAFAYETTE LA
2006-02-01 337-579-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 JEANERETTE LA
2006-01-31 337-254-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 LAFAYETTE LA
2006-01-31 337-254-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 LAFAYETTE LA
2006-01-31 337-315-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 LAFAYETTE LA
2006-01-31 337-354-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 LAFAYETTE LA
2006-01-31 337-354-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 LAFAYETTE LA
2006-01-31 337-354-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 LAFAYETTE LA
2006-01-31 337-354-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 LAFAYETTE LA
2006-01-31 337-371-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 LAFAYETTE LA
2006-01-31 337-371-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 LAFAYETTE LA
2006-01-31 337-371-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 LAFAYETTE LA
2006-01-31 337-371-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 LAFAYETTE LA
2006-01-31 337-371-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 LAFAYETTE LA
2006-01-31 337-371-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 LAFAYETTE LA
2006-01-31 337-371-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 LAFAYETTE LA
2006-01-31 337-704-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 LAFAYETTE LA
2006-01-19 337-692-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 OPELOUSAS LA
2005-12-29 337-502-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J LK CHARLES LA
2005-12-28 337-354-8XXX 8000–8999Assigned BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 LAFAYETTE LA
2005-12-28 337-504-1XXX 1000–1999Assigned VOICESTREAM GSM I, LLC 150C LAFAYETTE LA
2005-12-19 337-466-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 EUNICE LA
2005-12-19 337-466-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 EUNICE LA
2005-12-19 337-466-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 EUNICE LA
2005-12-14 337-592-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 KROTZ SPG LA
2005-12-07 337-303-9XXX 9000–9999Assigned METROPCS, INC. 5562 LAFAYETTE LA
2005-11-22 337-580-7XXX 7000–7999Assigned BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 EUNICE LA
2005-11-21 337-377-1XXX 1000–1999Assigned METROPCS, INC. 5562 LK CHARLES LA
2005-11-18 337-326-7XXX 7000–7999Assigned VOICESTREAM GSM I, LLC 150C LAFAYETTE LA
2005-11-18 337-326-8XXX 8000–8999Assigned VOICESTREAM GSM I, LLC 150C LAFAYETTE LA
2005-11-02 337-990-1XXX 1000–1999Assigned VOICESTREAM GSM I, LLC 150C LK CHARLES LA
2005-11-02 337-990-2XXX 2000–2999Assigned VOICESTREAM GSM I, LLC 150C LK CHARLES LA
2005-10-28 337-326-6XXX 6000–6999Assigned VOICESTREAM GSM I, LLC 150C LAFAYETTE LA
2005-10-26 337-804-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 LAFAYETTE LA
2005-10-18 337-309-2XXX 2000–2999Assigned METROPCS, INC. 5562 LK CHARLES LA
2005-10-18 337-309-8XXX 8000–8999Assigned METROPCS, INC. 5562 LK CHARLES LA
2005-10-17 337-308-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 OPELOUSAS LA
2005-10-17 337-308-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 OPELOUSAS LA
2005-10-17 337-308-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 OPELOUSAS 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.