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 224
BANDWIDTH.COM CLEC, LLC - IL 292
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
2026-08-14 224-502-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E ROUND LAKE IL
2026-08-14 224-687-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E ALGONQUIN IL
2026-07-09 224-267-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E ANTIOCH IL
2026-07-09 224-744-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E FRANKLINPK IL
2026-06-11 224-259-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E ANTIOCH IL
2026-05-08 224-596-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E MUNDELEIN IL
2026-05-08 224-681-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E ALGONQUIN IL
2024-10-14 224-597-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E LAKEZURICH IL
2022-09-02 224-483-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E ELGIN IL
2022-09-01 224-550-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E ELK GROVE IL
2022-07-26 224-642-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E ELGIN IL
2022-07-26 224-642-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E ELGIN IL
2022-07-26 224-642-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E ELGIN IL
2022-07-26 224-642-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E ELGIN IL
2022-07-26 224-642-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E ELGIN IL
2021-11-19 224-351-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E HALF DAY IL
2021-11-19 224-377-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E HALF DAY IL
2021-11-19 224-850-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E CARY IL
2021-11-19 224-850-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E CARY IL
2021-10-22 224-447-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E WAUKEGAN IL
2021-10-22 224-447-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E WAUKEGAN IL
2021-10-22 224-447-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E WAUKEGAN IL
2021-10-22 224-447-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E WAUKEGAN IL
2021-10-22 224-447-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E WAUKEGAN IL
2021-08-31 224-416-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E WAUKEGAN IL
2021-08-31 224-416-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E WAUKEGAN IL
2021-08-31 224-416-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E WAUKEGAN IL
2021-08-31 224-416-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E WAUKEGAN IL
2021-08-31 224-416-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E WAUKEGAN IL
2021-07-26 224-369-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E WAUKEGAN IL
2021-07-26 224-369-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E WAUKEGAN IL
2021-07-26 224-369-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E WAUKEGAN IL
2021-07-26 224-538-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E WAUKEGAN IL
2021-07-21 224-599-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E BARRINGTON IL
2021-07-21 224-599-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E BARRINGTON IL
2021-06-17 224-599-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E BARRINGTON IL
2021-06-17 224-599-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E BARRINGTON IL
2021-04-28 224-369-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E WAUKEGAN IL
2020-12-11 224-426-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E FOX LAKE IL
2020-12-11 224-786-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E HIGHLANDPK IL
2020-12-11 224-786-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E HIGHLANDPK IL
2020-12-10 224-350-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E EVANSTON IL
2020-12-10 224-350-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E EVANSTON IL
2020-10-14 224-285-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E DEERFIELD IL
2020-10-14 224-285-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E DEERFIELD IL
2020-10-14 224-487-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E CARY IL
2020-10-14 224-487-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E CARY IL
2019-10-24 224-319-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E DESPLAINES IL
2019-10-21 224-289-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E DESPLAINES IL
2019-10-21 224-289-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E DESPLAINES IL

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.