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 337
VOICESTREAM GSM I, LLC 191
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
2025-10-23 337-370-7XXX 7000–7999Assigned VOICESTREAM GSM I, LLC 150C JENNINGS LA
2024-09-09 337-818-6XXX 6000–6999Assigned VOICESTREAM GSM I, LLC 150C NEW IBERIA LA
2024-08-06 337-818-1XXX 1000–1999Assigned VOICESTREAM GSM I, LLC 150C NEW IBERIA LA
2024-08-06 337-818-8XXX 8000–8999Assigned VOICESTREAM GSM I, LLC 150C NEW IBERIA LA
2024-08-06 337-818-9XXX 9000–9999Assigned VOICESTREAM GSM I, LLC 150C NEW IBERIA LA
2024-07-16 337-215-5XXX 5000–5999Assigned VOICESTREAM GSM I, LLC 150C SULPHUR LA
2024-07-16 337-215-6XXX 6000–6999Assigned VOICESTREAM GSM I, LLC 150C SULPHUR LA
2024-07-16 337-285-1XXX 1000–1999Assigned VOICESTREAM GSM I, LLC 150C KAPLAN LA
2024-07-16 337-285-8XXX 8000–8999Assigned VOICESTREAM GSM I, LLC 150C KAPLAN LA
2024-07-16 337-285-9XXX 9000–9999Assigned VOICESTREAM GSM I, LLC 150C KAPLAN LA
2024-07-16 337-518-5XXX 5000–5999Assigned VOICESTREAM GSM I, LLC 150C VL PLATTE LA
2024-07-16 337-518-7XXX 7000–7999Assigned VOICESTREAM GSM I, LLC 150C VL PLATTE LA
2024-07-16 337-576-1XXX 1000–1999Assigned VOICESTREAM GSM I, LLC 150C EUNICE LA
2024-07-16 337-651-4XXX 4000–4999Assigned VOICESTREAM GSM I, LLC 150C CROWLEY LA
2024-07-16 337-690-8XXX 8000–8999Assigned VOICESTREAM GSM I, LLC 150C LEONVILLE LA
2024-07-16 337-748-7XXX 7000–7999Assigned VOICESTREAM GSM I, LLC 150C WASHINGTON LA
2024-07-16 337-796-0XXX 0000–0999Assigned VOICESTREAM GSM I, LLC 150C HACKBERRY LA
2024-07-16 337-841-8XXX 8000–8999Assigned VOICESTREAM GSM I, LLC 150C LAWTELL LA
2024-06-10 337-218-5XXX 5000–5999Assigned VOICESTREAM GSM I, LLC 150C JENNINGS LA
2024-06-10 337-352-3XXX 3000–3999Assigned VOICESTREAM GSM I, LLC 150C NEW IBERIA LA
2024-06-10 337-352-4XXX 4000–4999Assigned VOICESTREAM GSM I, LLC 150C NEW IBERIA LA
2024-06-10 337-746-0XXX 0000–0999Assigned VOICESTREAM GSM I, LLC 150C CARLYSS LA
2024-06-10 337-746-1XXX 1000–1999Assigned VOICESTREAM GSM I, LLC 150C CARLYSS LA
2023-10-25 337-730-1XXX 1000–1999Assigned VOICESTREAM GSM I, LLC 150C OPELOUSAS LA
2023-10-25 337-730-2XXX 2000–2999Assigned VOICESTREAM GSM I, LLC 150C OPELOUSAS LA
2023-10-25 337-730-3XXX 3000–3999Assigned VOICESTREAM GSM I, LLC 150C OPELOUSAS LA
2023-10-25 337-730-4XXX 4000–4999Assigned VOICESTREAM GSM I, LLC 150C OPELOUSAS LA
2023-10-05 337-618-0XXX 0000–0999Assigned VOICESTREAM GSM I, LLC 150C BREAUX BDG LA
2023-10-05 337-618-1XXX 1000–1999Assigned VOICESTREAM GSM I, LLC 150C BREAUX BDG LA
2023-10-05 337-618-2XXX 2000–2999Assigned VOICESTREAM GSM I, LLC 150C BREAUX BDG LA
2023-10-05 337-618-9XXX 9000–9999Assigned VOICESTREAM GSM I, LLC 150C BREAUX BDG LA
2023-10-04 337-627-5XXX 5000–5999Assigned VOICESTREAM GSM I, LLC 150C BREAUX BDG LA
2023-10-04 337-627-7XXX 7000–7999Assigned VOICESTREAM GSM I, LLC 150C BREAUX BDG LA
2023-10-02 337-300-7XXX 7000–7999Assigned VOICESTREAM GSM I, LLC 150C ELTON LA
2023-10-02 337-300-8XXX 8000–8999Assigned VOICESTREAM GSM I, LLC 150C ELTON LA
2023-04-11 337-630-2XXX 2000–2999Assigned VOICESTREAM GSM I, LLC 150C CAMERON LA
2023-04-11 337-630-3XXX 3000–3999Assigned VOICESTREAM GSM I, LLC 150C CAMERON LA
2023-03-17 337-455-3XXX 3000–3999Assigned VOICESTREAM GSM I, LLC 150C BREAUX BDG LA
2023-03-17 337-567-8XXX 8000–8999Assigned VOICESTREAM GSM I, LLC 150C BREAUX BDG LA
2023-03-17 337-627-0XXX 0000–0999Assigned VOICESTREAM GSM I, LLC 150C BREAUX BDG LA
2023-03-17 337-627-9XXX 9000–9999Assigned VOICESTREAM GSM I, LLC 150C BREAUX BDG LA
2022-12-02 337-390-2XXX 2000–2999Assigned VOICESTREAM GSM I, LLC 150C KINDER LA
2022-12-02 337-390-3XXX 3000–3999Assigned VOICESTREAM GSM I, LLC 150C KINDER LA
2022-11-16 337-320-0XXX 0000–0999Assigned VOICESTREAM GSM I, LLC 150C OBERLIN LA
2022-07-05 337-567-7XXX 7000–7999Assigned VOICESTREAM GSM I, LLC 150C BREAUX BDG LA
2022-03-15 337-378-6XXX 6000–6999Assigned VOICESTREAM GSM I, LLC 150C LEESVILLE LA
2022-03-15 337-487-2XXX 2000–2999Assigned VOICESTREAM GSM I, LLC 150C LEESVILLE LA
2022-02-24 337-495-6XXX 6000–6999Assigned VOICESTREAM GSM I, LLC 150C DE RIDDER LA
2022-02-24 337-495-7XXX 7000–7999Assigned VOICESTREAM GSM I, LLC 150C DE RIDDER LA
2022-02-24 337-495-8XXX 8000–8999Assigned VOICESTREAM GSM I, LLC 150C DE RIDDER 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.