NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

7 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 508
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 4
PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA 1
OMNIPOINT MIAMI E LICENSE, 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
2021-10-12 508-444-5XXX 5000–5999Assigned VONAGE AMERICA LLC 197D FALMOUTH MA
2021-09-29 508-475-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 WESTBORO MA
2021-09-29 508-507-4XXX 4000–4999Assigned METROPCS, INC. 5562 FRANKLIN MA
2021-09-29 508-507-5XXX 5000–5999Assigned METROPCS, INC. 5562 FRANKLIN MA
2021-09-24 508-557-3XXX 3000–3999Assigned METROPCS, INC. 5562 SEEKONK MA
2021-09-24 508-732-2XXX 2000–2999Assigned METROPCS, INC. 5562 PLYMOUTH MA
2021-09-14 508-614-2XXX 2000–2999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 WESTBORO MA
2021-09-13 508-301-8XXX 8000–8999Assigned COMMIO, LLC 939H TAUNTON MA
2021-09-13 508-844-0XXX 0000–0999Assigned COMMIO, LLC 939H TAUNTON MA
2021-09-03 508-500-3XXX 3000–3999Assigned TERRA NOVA TELECOM INC. 145J MARION MA
2021-09-03 508-925-8XXX 8000–8999Assigned TERRA NOVA TELECOM INC. 145J SHREWSBURY MA
2021-09-02 508-827-9XXX 9000–9999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 HYANNIS MA
2021-09-01 508-657-8XXX 8000–8999Assigned TERRA NOVA TELECOM INC. 145J BELLINGHAM MA
2021-09-01 508-682-9XXX 9000–9999Assigned TERRA NOVA TELECOM INC. 145J EASTON MA
2021-08-26 508-413-1XXX 1000–1999Assigned TERRA NOVA TELECOM INC. 145J PROVINCETN MA
2021-08-11 508-975-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H NATICK MA
2021-08-04 508-262-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H SEEKONK MA
2021-08-04 508-289-0XXX 0000–0999Assigned COMCAST IP PHONE, LLC 318J FALMOUTH MA
2021-08-04 508-293-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H HOPKINTON MA
2021-07-30 508-402-8XXX 8000–8999Assigned COMMIO, LLC 939H FALL RIVER MA
2021-07-30 508-402-9XXX 9000–9999Assigned COMMIO, LLC 939H FALL RIVER MA
2021-07-30 508-536-9XXX 9000–9999Assigned COMMIO, LLC 939H FALL RIVER MA
2021-07-16 508-936-2XXX 2000–2999Assigned ONVOY, LLC - MA 892D NORTHBORO MA
2021-07-16 508-936-8XXX 8000–8999Assigned ONVOY, LLC - MA 892D NORTHBORO MA
2021-07-14 508-770-6XXX 6000–6999Assigned ONVOY, LLC - MA 892D WORCESTER MA
2021-06-18 508-313-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 BROCKTON MA
2021-06-18 508-709-3XXX 3000–3999Assigned TELNYX LLC 073H NORTHBORO MA
2021-06-15 508-443-3XXX 3000–3999Assigned TERRA NOVA TELECOM INC. 145J BRIDGEWTR MA
2021-06-15 508-635-4XXX 4000–4999Assigned COMMIO, LLC 939H WORCESTER MA
2021-06-15 508-770-2XXX 2000–2999Assigned COMMIO, LLC 939H WORCESTER MA
2021-06-15 508-860-0XXX 0000–0999Assigned COMMIO, LLC 939H WORCESTER MA
2021-06-15 508-860-9XXX 9000–9999Assigned COMMIO, LLC 939H WORCESTER MA
2021-06-14 508-214-1XXX 1000–1999Assigned PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA 268F WELLFLEET MA
2021-06-11 508-233-9XXX 9000–9999Assigned ONVOY, LLC - MA 892D NATICK MA
2021-06-11 508-318-7XXX 7000–7999Assigned ONVOY, LLC - MA 892D NATICK MA
2021-06-11 508-318-9XXX 9000–9999Assigned ONVOY, LLC - MA 892D NATICK MA
2021-06-11 508-936-6XXX 6000–6999Assigned ONVOY, LLC - MA 892D NORTHBORO MA
2021-06-11 508-936-7XXX 7000–7999Assigned ONVOY, LLC - MA 892D NORTHBORO MA
2021-06-11 508-960-1XXX 1000–1999Assigned ONVOY, LLC - MA 892D NATICK MA
2021-06-03 508-827-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 HYANNIS MA
2021-05-18 508-205-2XXX 2000–2999Assigned ONVOY, LLC - MA 892D EASTON MA
2021-05-18 508-205-4XXX 4000–4999Assigned ONVOY, LLC - MA 892D EASTON MA
2021-05-05 508-595-4XXX 4000–4999Assigned VONAGE AMERICA LLC 197D WORCESTER MA
2021-03-16 508-401-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H WAYLAND MA
2021-03-16 508-492-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H WALPOLE MA
2021-03-16 508-938-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H WESTPORT MA
2021-03-15 508-557-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H SEEKONK MA
2021-03-12 508-466-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H NORTHBORO MA
2021-03-12 508-637-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H NOBROOKFLD MA
2021-03-10 508-418-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H HYANNIS 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.