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 224
TELEPORT COMMUNICATIONS AMERICA, LLC - IL 124
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
2024-12-20 224-597-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 LAKEZURICH IL
2024-12-13 224-621-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 WAUKEGAN IL
2024-07-18 224-576-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 WAUKEGAN IL
2023-06-29 224-564-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 ELK GROVE IL
2023-06-29 224-564-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 ELK GROVE IL
2023-06-29 224-564-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 ELK GROVE IL
2023-06-29 224-564-8XXX 8000–8999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 ELK GROVE IL
2023-06-29 224-564-9XXX 9000–9999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 ELK GROVE IL
2023-04-17 224-476-8XXX 8000–8999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 DESPLAINES IL
2023-01-04 224-476-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 DESPLAINES IL
2022-08-09 224-476-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 DESPLAINES IL
2021-11-22 224-799-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 NORTHBROOK IL
2021-11-17 224-439-0XXX 0000–0999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 WAUKEGAN IL
2021-11-17 224-439-1XXX 1000–1999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 WAUKEGAN IL
2021-11-17 224-439-2XXX 2000–2999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 WAUKEGAN IL
2021-11-17 224-439-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 WAUKEGAN IL
2021-11-17 224-439-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 WAUKEGAN IL
2021-11-17 224-439-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 WAUKEGAN IL
2021-11-17 224-439-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 WAUKEGAN IL
2021-11-17 224-439-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 WAUKEGAN IL
2021-11-17 224-439-8XXX 8000–8999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 WAUKEGAN IL
2021-11-17 224-439-9XXX 9000–9999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 WAUKEGAN IL
2021-10-25 224-438-2XXX 2000–2999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 LAKEZURICH IL
2021-10-25 224-438-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 LAKEZURICH IL
2021-10-25 224-438-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 LAKEZURICH IL
2021-10-25 224-438-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 LAKEZURICH IL
2021-10-25 224-438-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 LAKEZURICH IL
2021-04-22 224-781-9XXX 9000–9999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 FRANKLINPK IL
2021-02-11 224-544-2XXX 2000–2999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 LAKEFOREST IL
2020-05-08 224-332-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 LAKEFOREST IL
2020-05-08 224-332-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 LAKEFOREST IL
2020-05-08 224-332-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 LAKEFOREST IL
2020-05-08 224-332-8XXX 8000–8999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 LAKEFOREST IL
2020-05-08 224-332-9XXX 9000–9999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 LAKEFOREST IL
2020-04-28 224-327-8XXX 8000–8999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 MUNDELEIN IL
2020-04-28 224-327-9XXX 9000–9999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 MUNDELEIN IL
2019-11-05 224-516-2XXX 2000–2999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 LAKEFOREST IL
2019-10-11 224-317-0XXX 0000–0999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 LAKEFOREST IL
2019-10-11 224-317-1XXX 1000–1999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 LAKEFOREST IL
2019-10-11 224-317-2XXX 2000–2999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 LAKEFOREST IL
2019-10-11 224-317-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 LAKEFOREST IL
2019-10-11 224-317-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 LAKEFOREST IL
2019-10-11 224-317-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 LAKEFOREST IL
2019-10-11 224-317-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 LAKEFOREST IL
2019-10-11 224-317-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 LAKEFOREST IL
2019-10-11 224-317-8XXX 8000–8999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 LAKEFOREST IL
2019-10-11 224-317-9XXX 9000–9999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 LAKEFOREST IL
2019-09-10 224-288-2XXX 2000–2999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 BARRINGTON IL
2019-08-06 224-516-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 LAKEFOREST IL
2019-04-17 224-299-0XXX 0000–0999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 ELK GROVE IL

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.