NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

1 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 617
BANDWIDTH.COM CLEC, LLC - MA 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
2021-02-04 617-336-6XXX 6000–6999Assigned ONVOY, LLC - MA 892D CHELSEA MA
2021-02-04 617-604-2XXX 2000–2999Assigned ONVOY, LLC - MA 892D HYDE PARK MA
2021-02-04 617-604-3XXX 3000–3999Assigned ONVOY, LLC - MA 892D HYDE PARK MA
2021-02-04 617-819-2XXX 2000–2999Assigned ONVOY, LLC - MA 892D CHELSEA MA
2021-02-04 617-843-2XXX 2000–2999Assigned ONVOY, LLC - MA 892D EVERETT MA
2021-02-04 617-843-8XXX 8000–8999Assigned ONVOY, LLC - MA 892D EVERETT MA
2021-02-04 617-843-9XXX 9000–9999Assigned ONVOY, LLC - MA 892D EVERETT MA
2021-02-02 617-958-0XXX 0000–0999Assigned TELNYX LLC 073H CHELSEA MA
2021-01-29 617-762-1XXX 1000–1999Assigned ONVOY, LLC - MA 892D NEWTON MA
2021-01-25 617-300-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H CAMBRIDGE MA
2021-01-25 617-397-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H CAMBRIDGE MA
2021-01-22 617-741-3XXX 3000–3999Assigned PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA 268F SOMERVILLE MA
2020-12-21 617-337-6XXX 6000–6999Assigned TERRA NOVA TELECOM INC. 145J CHARLESTN MA
2020-12-21 617-616-3XXX 3000–3999Assigned TERRA NOVA TELECOM INC. 145J SOMERVILLE MA
2020-12-04 617-344-3XXX 3000–3999Assigned ONVOY, LLC - MA 892D JAMAICA PL MA
2020-12-04 617-616-9XXX 9000–9999Assigned ONVOY, LLC - MA 892D SOMERVILLE MA
2020-12-04 617-676-1XXX 1000–1999Assigned ONVOY, LLC - MA 892D JAMAICA PL MA
2020-12-04 617-676-9XXX 9000–9999Assigned ONVOY, LLC - MA 892D JAMAICA PL MA
2020-12-04 617-684-6XXX 6000–6999Assigned ONVOY, LLC - MA 892D SOMERVILLE MA
2020-12-04 617-702-0XXX 0000–0999Assigned ONVOY, LLC - MA 892D SOMERVILLE MA
2020-12-04 617-702-3XXX 3000–3999Assigned ONVOY, LLC - MA 892D SOMERVILLE MA
2020-10-21 617-883-7XXX 7000–7999Assigned TERRA NOVA TELECOM INC. 145J BELMONT MA
2020-09-25 617-751-0XXX 0000–0999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 BROOKLINE MA
2020-08-10 617-377-0XXX 0000–0999Assigned METROPCS, INC. 5562 BOSTON MA
2020-08-10 617-377-5XXX 5000–5999Assigned METROPCS, INC. 5562 BOSTON MA
2020-08-10 617-490-0XXX 0000–0999Assigned METROPCS, INC. 5562 BOSTON MA
2020-08-10 617-490-1XXX 1000–1999Assigned METROPCS, INC. 5562 BOSTON MA
2020-07-29 617-579-6XXX 6000–6999Assigned METROPCS, INC. 5562 BOSTON MA
2020-07-29 617-579-7XXX 7000–7999Assigned METROPCS, INC. 5562 BOSTON MA
2020-07-29 617-867-3XXX 3000–3999Assigned METROPCS, INC. 5562 BOSTON MA
2020-07-29 617-867-5XXX 5000–5999Assigned METROPCS, INC. 5562 BOSTON MA
2020-07-27 617-533-0XXX 0000–0999Assigned PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA 268F DORCHESTER MA
2020-07-27 617-751-1XXX 1000–1999Assigned PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA 268F BROOKLINE MA
2020-07-27 617-819-0XXX 0000–0999Assigned PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA 268F CHELSEA MA
2020-07-23 617-608-9XXX 9000–9999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 BROOKLINE MA
2020-07-22 617-344-9XXX 9000–9999Assigned ONVOY, LLC - MA 892D JAMAICA PL MA
2020-07-22 617-676-0XXX 0000–0999Assigned ONVOY, LLC - MA 892D JAMAICA PL MA
2020-07-13 617-223-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 BOSTON MA
2020-07-13 617-239-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 BOSTON MA
2020-07-13 617-295-7XXX 7000–7999Assigned ONVOY, LLC - MA 892D BOSTON MA
2020-07-13 617-356-0XXX 0000–0999Assigned ONVOY, LLC - MA 892D BOSTON MA
2020-07-13 617-579-8XXX 8000–8999Assigned ONVOY, LLC - MA 892D BOSTON MA
2020-07-13 617-683-1XXX 1000–1999Assigned ONVOY, LLC - MA 892D BOSTON MA
2020-07-13 617-937-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 BOSTON MA
2020-06-24 617-540-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H CAMBRIDGE MA
2020-06-24 617-540-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H CAMBRIDGE MA
2020-06-24 617-540-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H CAMBRIDGE MA
2020-06-19 617-841-3XXX 3000–3999Assigned ONVOY, LLC - MA 892D WINTHROP MA
2020-05-26 617-231-9XXX 9000–9999Assigned ONVOY, LLC - MA 892D WATERTOWN MA
2020-05-26 617-272-7XXX 7000–7999Assigned ONVOY, LLC - MA 892D HYDE PARK 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.