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
2022-03-10 857-372-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 QUINCY MA
2022-03-10 857-372-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 QUINCY MA
2022-03-10 857-372-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 QUINCY MA
2022-03-10 857-372-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 QUINCY MA
2022-03-10 857-372-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 QUINCY MA
2022-03-10 857-372-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 QUINCY MA
2022-03-08 857-491-4XXX 4000–4999Assigned ONVOY, LLC - MA 892D BOSTON MA
2022-02-24 857-384-2XXX 2000–2999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 BRIGHTON MA
2022-02-24 857-384-9XXX 9000–9999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 BRIGHTON MA
2022-02-24 857-467-7XXX 7000–7999Assigned TON80 COMMUNICATIONS, LLC 516J SOMERVILLE MA
2022-02-24 857-832-0XXX 0000–0999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 BRIGHTON MA
2022-02-24 857-832-1XXX 1000–1999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 BRIGHTON MA
2022-02-22 857-388-4XXX 4000–4999Assigned ONVOY, LLC - MA 892D SOMERVILLE MA
2022-02-22 857-388-7XXX 7000–7999Assigned ONVOY, LLC - MA 892D SOMERVILLE MA
2022-02-22 857-392-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H JAMAICA PL MA
2022-02-22 857-392-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H JAMAICA PL MA
2022-02-22 857-693-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H ROXBURY MA
2022-02-18 857-688-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H DORCHESTER MA
2022-02-18 857-688-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H DORCHESTER MA
2022-02-15 857-639-7XXX 7000–7999Assigned TON80 COMMUNICATIONS, LLC 516J CAMBRIDGE MA
2022-02-15 857-688-4XXX 4000–4999Assigned TON80 COMMUNICATIONS, LLC 516J DORCHESTER MA
2022-02-15 857-693-7XXX 7000–7999Assigned TON80 COMMUNICATIONS, LLC 516J ROXBURY MA
2022-02-15 857-788-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H BOSTON MA
2022-02-15 857-788-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H BOSTON MA
2022-02-11 857-387-6XXX 6000–6999Assigned TON80 COMMUNICATIONS, LLC 516J QUINCY MA
2022-02-11 857-468-6XXX 6000–6999Assigned TON80 COMMUNICATIONS, LLC 516J CHARLESTN MA
2022-02-11 857-832-4XXX 4000–4999Assigned TON80 COMMUNICATIONS, LLC 516J BRIGHTON MA
2022-02-09 857-746-7XXX 7000–7999Assigned TON80 COMMUNICATIONS, LLC 516J BROOKLINE MA
2022-02-07 857-466-3XXX 3000–3999Assigned TON80 COMMUNICATIONS, LLC 516J HYDE PARK MA
2022-01-28 857-799-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H CAMBRIDGE MA
2022-01-27 857-395-3XXX 3000–3999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 ROXBURY MA
2022-01-27 857-395-4XXX 4000–4999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 ROXBURY MA
2022-01-27 857-395-5XXX 5000–5999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 ROXBURY MA
2022-01-27 857-395-6XXX 6000–6999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 ROXBURY MA
2022-01-27 857-395-7XXX 7000–7999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 ROXBURY MA
2022-01-27 857-395-8XXX 8000–8999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 ROXBURY MA
2022-01-27 857-395-9XXX 9000–9999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 ROXBURY MA
2022-01-26 857-379-4XXX 4000–4999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 ROXBURY MA
2022-01-26 857-379-6XXX 6000–6999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 ROXBURY MA
2022-01-26 857-391-0XXX 0000–0999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 CHARLESTN MA
2022-01-26 857-391-1XXX 1000–1999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 CHARLESTN MA
2022-01-26 857-391-4XXX 4000–4999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 CHARLESTN MA
2022-01-14 857-384-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H BRIGHTON MA
2022-01-14 857-384-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H BRIGHTON MA
2022-01-14 857-391-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H CHARLESTN MA
2022-01-14 857-391-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H CHARLESTN MA
2022-01-10 857-297-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H NEWTON MA
2022-01-10 857-297-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H NEWTON MA
2022-01-10 857-387-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H QUINCY MA
2022-01-10 857-387-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H QUINCY 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.