NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

0 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, all time — NPA 337
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - LA 76
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
2025-05-20 337-425-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - LA 6505 LK CHARLES LA
2025-05-20 337-425-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - LA 6505 LK CHARLES LA
2025-03-14 337-341-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - LA 6505 STMARTINVL LA
2024-01-18 337-634-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - LA 6505 LK CHARLES LA
2023-09-12 337-416-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - LA 6505 REEVES LA
2023-03-03 337-218-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - LA 6505 JENNINGS LA
2023-02-10 337-617-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - LA 6505 MERRYVILLE LA
2022-12-21 337-848-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - LA 6505 SUNSET LA
2022-05-11 337-340-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - LA 6505 MERRYVILLE LA
2022-01-14 337-346-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - LA 6505 FRANKLIN LA
2022-01-14 337-486-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - LA 6505 STMARTINVL LA
2021-09-29 337-595-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - LA 6505 ABBEVILLE LA
2021-03-30 337-382-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - LA 6505 ABBEVILLE LA
2021-02-12 337-703-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - LA 6505 LAFAYETTE LA
2021-02-12 337-703-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - LA 6505 LAFAYETTE LA
2021-02-11 337-553-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - LA 6505 GUEYDAN LA
2020-10-15 337-372-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - LA 6505 MERRYVILLE LA
2020-08-06 337-267-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - LA 6505 LAFAYETTE LA
2020-07-29 337-701-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - LA 6505 EUNICE LA
2020-06-10 337-930-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - LA 6505 WELSH LA
2020-05-28 337-410-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - LA 6505 TURKEY CRK LA
2020-04-24 337-345-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - LA 6505 LAFAYETTE LA
2020-04-24 337-345-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - LA 6505 LAFAYETTE LA
2020-04-23 337-382-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - LA 6505 ABBEVILLE LA
2020-04-23 337-382-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - LA 6505 ABBEVILLE LA
2020-02-12 337-283-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - LA 6505 ABBEVILLE LA
2020-02-12 337-283-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - LA 6505 ABBEVILLE LA
2020-02-05 337-930-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - LA 6505 WELSH LA
2020-01-31 337-605-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - LA 6505 CAMERON LA
2019-03-06 337-998-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - LA 6505 KINDER LA
2018-07-11 337-930-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - LA 6505 WELSH LA
2017-09-22 337-930-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - LA 6505 WELSH LA
2016-10-07 337-930-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - LA 6505 WELSH LA
2014-09-18 337-240-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - LA 6505 LK CHARLES LA
2014-08-08 337-930-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - LA 6505 WELSH LA
2014-06-16 337-240-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - LA 6505 LK CHARLES LA
2014-05-09 337-373-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - LA 6505 NEW IBERIA LA
2014-05-09 337-998-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - LA 6505 KINDER LA
2013-10-08 337-458-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - LA 6505 CROWLEY LA
2013-10-08 337-930-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - LA 6505 WELSH LA
2013-10-02 337-465-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - LA 6505 NEW IBERIA LA
2013-10-02 337-465-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - LA 6505 NEW IBERIA LA
2013-05-14 337-465-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - LA 6505 NEW IBERIA LA
2013-02-27 337-441-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - LA 6505 STMARTINVL LA
2012-11-13 337-201-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - LA 6505 NEW IBERIA LA
2012-09-26 337-200-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - LA 6505 BASILE LA
2012-09-26 337-201-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - LA 6505 NEW IBERIA LA
2012-09-26 337-458-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - LA 6505 CROWLEY LA
2012-07-06 337-201-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - LA 6505 NEW IBERIA LA
2012-07-06 337-223-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - LA 6505 GUEYDAN 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.