NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

0 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, all time — NPA 928
BANDWIDTH.COM CLEC, LLC - AZ 123
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
2022-10-11 928-307-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - AZ 587F PAGE AZ
2022-10-11 928-320-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - AZ 587F PIMA AZ
2022-10-11 928-417-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - AZ 587F SAFFORD AZ
2022-10-11 928-625-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - AZ 587F PARKER DAM AZ
2022-09-26 928-491-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - AZ 587F GLOBE AZ
2022-07-18 928-534-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - AZ 587F SAFFORD AZ
2022-07-18 928-534-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - AZ 587F SAFFORD AZ
2022-07-18 928-534-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - AZ 587F SAFFORD AZ
2022-01-26 928-638-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - AZ 587F GRANDCNYON AZ
2021-04-23 928-267-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - AZ 587F PAYSON AZ
2021-04-23 928-517-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - AZ 587F PAYSON AZ
2021-04-16 928-877-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - AZ 587F PARKER DAM AZ
2021-03-23 928-719-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - AZ 587F GLOBE AZ
2021-03-23 928-900-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - AZ 587F GLOBE AZ
2021-03-23 928-900-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - AZ 587F GLOBE AZ
2021-03-23 928-900-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - AZ 587F GLOBE AZ
2021-03-23 928-900-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - AZ 587F GLOBE AZ
2020-11-05 928-900-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - AZ 587F GLOBE AZ
2020-08-18 928-361-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - AZ 587F PIMA AZ
2020-04-16 928-361-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - AZ 587F PIMA AZ
2020-04-13 928-250-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - AZ 587F SAFFORD AZ
2020-04-13 928-588-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - AZ 587F WICKENBURG AZ
2020-03-10 928-888-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - AZ 587F GRANDCNYON AZ
2019-09-04 928-264-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - AZ 587F EHRENBERG AZ
2019-09-04 928-264-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - AZ 587F EHRENBERG AZ
2019-04-22 928-476-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - AZ 587F PAYSON AZ
2018-06-27 928-813-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - AZ 587F GLOBE AZ
2018-06-27 928-813-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - AZ 587F GLOBE AZ
2018-06-27 928-813-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - AZ 587F GLOBE AZ
2018-05-15 928-264-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - AZ 587F EHRENBERG AZ
2018-04-27 928-813-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - AZ 587F GLOBE AZ
2018-04-25 928-543-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - AZ 587F WICKENBURG AZ
2018-04-25 928-612-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - AZ 587F PAGE AZ
2018-03-19 928-316-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - AZ 587F PIMA AZ
2017-05-17 928-882-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - AZ 587F WINSLOW AZ
2016-04-11 928-985-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - AZ 587F SAFFORD AZ
2016-04-11 928-985-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - AZ 587F SAFFORD AZ
2015-06-30 928-331-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - AZ 587F GILA BEND AZ
2015-05-08 928-719-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - AZ 587F GLOBE AZ
2015-05-08 928-719-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - AZ 587F GLOBE AZ
2015-05-08 928-719-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - AZ 587F GLOBE AZ
2015-05-08 928-793-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - AZ 587F GLOBE AZ
2015-04-10 928-575-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - AZ 587F PARKER AZ
2015-04-10 928-851-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - AZ 587F BOUSE AZ
2015-04-10 928-857-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - AZ 587F CIBOLA AZ
2015-04-09 928-351-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - AZ 587F GLOBE AZ
2015-04-09 928-351-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - AZ 587F GLOBE AZ
2015-04-09 928-487-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - AZ 587F GLOBE AZ
2015-04-09 928-719-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - AZ 587F GLOBE AZ
2015-04-02 928-298-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - AZ 587F PIMA AZ

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.