NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

2 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026

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 857
BANDWIDTH.COM CLEC, LLC - MA 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
2022-01-10 857-688-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H DORCHESTER MA
2022-01-10 857-688-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H DORCHESTER MA
2022-01-07 857-767-8XXX 8000–8999Assigned TON80 COMMUNICATIONS, LLC 516J BOSTON MA
2022-01-04 857-788-7XXX 7000–7999Assigned ONVOY, LLC - MA 892D BOSTON MA
2021-12-23 857-867-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H BROOKLINE MA
2021-12-23 857-867-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H BROOKLINE MA
2021-12-17 857-394-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H BELMONT MA
2021-12-17 857-394-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H BELMONT MA
2021-12-16 857-388-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H SOMERVILLE MA
2021-12-16 857-388-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H SOMERVILLE MA
2021-12-08 857-394-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 BELMONT MA
2021-12-03 857-391-6XXX 6000–6999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 CHARLESTN MA
2021-12-03 857-391-7XXX 7000–7999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 CHARLESTN MA
2021-12-03 857-391-8XXX 8000–8999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 CHARLESTN MA
2021-12-03 857-391-9XXX 9000–9999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 CHARLESTN MA
2021-12-02 857-381-0XXX 0000–0999Assigned TELNYX LLC 073H BROOKLINE MA
2021-12-01 857-381-4XXX 4000–4999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 BROOKLINE MA
2021-12-01 857-390-0XXX 0000–0999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 BROOKLINE MA
2021-12-01 857-390-1XXX 1000–1999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 BROOKLINE MA
2021-12-01 857-390-2XXX 2000–2999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 BROOKLINE MA
2021-12-01 857-390-3XXX 3000–3999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 BROOKLINE MA
2021-12-01 857-390-4XXX 4000–4999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 BROOKLINE MA
2021-12-01 857-390-5XXX 5000–5999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 BROOKLINE MA
2021-12-01 857-390-6XXX 6000–6999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 BROOKLINE MA
2021-11-08 857-706-5XXX 5000–5999Assigned ONVOY, LLC - MA 892D CAMBRIDGE MA
2021-11-08 857-757-3XXX 3000–3999Assigned ONVOY, LLC - MA 892D CAMBRIDGE MA
2021-11-08 857-799-2XXX 2000–2999Assigned ONVOY, LLC - MA 892D CAMBRIDGE MA
2021-11-08 857-799-3XXX 3000–3999Assigned ONVOY, LLC - MA 892D CAMBRIDGE MA
2021-11-04 857-356-4XXX 4000–4999Assigned ONVOY, LLC - MA 892D BOSTON MA
2021-11-02 857-371-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H WATERTOWN MA
2021-11-02 857-382-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H EASTBOSTON MA
2021-11-02 857-382-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H EASTBOSTON MA
2021-11-02 857-422-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H SO BOSTON MA
2021-11-02 857-422-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H SO BOSTON MA
2021-11-02 857-475-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H CHELSEA MA
2021-11-02 857-475-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H CHELSEA MA
2021-11-02 857-597-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H WINTHROP MA
2021-11-02 857-597-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H WINTHROP MA
2021-10-29 857-799-5XXX 5000–5999Assigned ONVOY, LLC - MA 892D CAMBRIDGE MA
2021-10-29 857-799-6XXX 6000–6999Assigned ONVOY, LLC - MA 892D CAMBRIDGE MA
2021-10-29 857-799-7XXX 7000–7999Assigned ONVOY, LLC - MA 892D CAMBRIDGE MA
2021-10-29 857-799-8XXX 8000–8999Assigned ONVOY, LLC - MA 892D CAMBRIDGE MA
2021-10-26 857-688-8XXX 8000–8999Assigned FRACTEL, LLC 965H DORCHESTER MA
2021-10-25 857-422-0XXX 0000–0999Assigned TELNYX LLC 073H SO BOSTON MA
2021-10-22 857-331-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - MA 990E CAMBRIDGE MA
2021-10-22 857-357-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - MA 990E CAMBRIDGE MA
2021-10-22 857-357-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - MA 990E CAMBRIDGE MA
2021-10-22 857-357-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - MA 990E CAMBRIDGE MA
2021-10-22 857-379-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H ROXBURY MA
2021-10-22 857-379-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H ROXBURY MA

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.