NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

14 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, last 30 days — NPA 413
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6
BANDWIDTH.COM CLEC, LLC - MA 5
NEW CINGULAR WIRELESS PCS, LLC - DC 1
MCIMETRO ACCESS TRANSMISSION SERVICES LLC 1
AHOI LLC 1
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
2021-04-17 413-800-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 AMHERST MA
2021-04-17 413-867-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 SPRINGFLD MA
2021-04-17 413-867-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 SPRINGFLD MA
2021-04-17 413-867-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 SPRINGFLD MA
2021-04-17 413-867-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 SPRINGFLD MA
2021-04-17 413-867-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 SPRINGFLD MA
2021-04-17 413-910-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 SPRINGFLD MA
2021-04-17 413-910-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 SPRINGFLD MA
2021-04-17 413-910-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 SPRINGFLD MA
2021-04-17 413-910-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 SPRINGFLD MA
2021-04-17 413-910-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 SPRINGFLD MA
2021-04-17 413-910-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 SPRINGFLD MA
2021-04-17 413-910-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 SPRINGFLD MA
2021-04-16 413-481-1XXX 1000–1999Assigned ONVOY, LLC - MA 892D BRIMFIELD MA
2021-04-16 413-481-2XXX 2000–2999Assigned ONVOY, LLC - MA 892D BRIMFIELD MA
2021-04-16 413-491-1XXX 1000–1999Assigned ONVOY, LLC - MA 892D CHESTERFLD MA
2021-04-16 413-616-6XXX 6000–6999Assigned ONVOY, LLC - MA 892D OTIS MA
2021-04-16 413-633-2XXX 2000–2999Assigned ONVOY, LLC - MA 892D SHELBUNFLS MA
2021-04-16 413-633-3XXX 3000–3999Assigned ONVOY, LLC - MA 892D SHELBUNFLS MA
2021-04-16 413-724-4XXX 4000–4999Assigned ONVOY, LLC - MA 892D WILLIAMSBG MA
2021-04-16 413-741-1XXX 1000–1999Assigned ONVOY, LLC - MA 892D WILLIAMSTN MA
2021-04-16 413-741-2XXX 2000–2999Assigned ONVOY, LLC - MA 892D WILLIAMSTN MA
2021-04-16 413-823-2XXX 2000–2999Assigned ONVOY, LLC - MA 892D WORTHINGTN MA
2021-04-16 413-853-6XXX 6000–6999Assigned ONVOY, LLC - MA 892D ASHFIELD MA
2021-04-06 413-867-5XXX 5000–5999Assigned COMMIO, LLC 939H SPRINGFLD MA
2021-03-31 413-206-1XXX 1000–1999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 CHICOPEE MA
2021-03-31 413-240-1XXX 1000–1999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 CHICOPEE MA
2021-03-31 413-356-1XXX 1000–1999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 CHICOPEE MA
2021-03-26 413-236-9XXX 9000–9999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 PITTSFIELD MA
2021-03-23 413-228-3XXX 3000–3999Assigned ONVOY, LLC - MA 892D PALMER MA
2021-03-23 413-284-9XXX 9000–9999Assigned ONVOY, LLC - MA 892D PALMER MA
2021-03-23 413-303-6XXX 6000–6999Assigned ONVOY, LLC - MA 892D EASTHAMPTN MA
2021-03-23 413-332-3XXX 3000–3999Assigned ONVOY, LLC - MA 892D LENOX MA
2021-03-23 413-353-9XXX 9000–9999Assigned ONVOY, LLC - MA 892D HOUSATONIC MA
2021-03-23 413-359-2XXX 2000–2999Assigned ONVOY, LLC - MA 892D COLRAIN MA
2021-03-23 413-402-9XXX 9000–9999Assigned ONVOY, LLC - MA 892D SHEFFIELD MA
2021-03-23 413-444-2XXX 2000–2999Assigned ONVOY, LLC - MA 892D BERNARDSTN MA
2021-03-23 413-529-6XXX 6000–6999Assigned ONVOY, LLC - MA 892D EASTHAMPTN MA
2021-03-23 413-591-5XXX 5000–5999Assigned ONVOY, LLC - MA 892D GREATBNGTN MA
2021-03-23 413-610-3XXX 3000–3999Assigned ONVOY, LLC - MA 892D LUDLOW MA
2021-03-23 413-610-4XXX 4000–4999Assigned ONVOY, LLC - MA 892D LUDLOW MA
2021-03-23 413-666-3XXX 3000–3999Assigned ONVOY, LLC - MA 892D GRANVILLE MA
2021-03-23 413-675-2XXX 2000–2999Assigned ONVOY, LLC - MA 892D WILBRAHAM MA
2021-03-23 413-675-3XXX 3000–3999Assigned ONVOY, LLC - MA 892D WILBRAHAM MA
2021-03-23 413-722-3XXX 3000–3999Assigned ONVOY, LLC - MA 892D CONWAY MA
2021-03-23 413-798-5XXX 5000–5999Assigned ONVOY, LLC - MA 892D LONGMEADOW MA
2021-03-23 413-798-6XXX 6000–6999Assigned ONVOY, LLC - MA 892D LONGMEADOW MA
2021-03-12 413-910-9XXX 9000–9999Assigned ONVOY, LLC - MA 892D SPRINGFLD MA
2021-03-05 413-393-1XXX 1000–1999Assigned STRATUS NETWORKS 495J WESTFIELD MA
2021-03-04 413-238-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H WORTHINGTN MA

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.