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
2020-06-11 508-466-6XXX 6000–6999Assigned ONVOY, LLC - MA 892D NORTHBORO MA
2020-06-11 508-552-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 WORCESTER MA
2020-06-10 508-434-9XXX 9000–9999Assigned ONVOY, LLC - MA 892D CHARLTON MA
2020-06-10 508-462-9XXX 9000–9999Assigned ONVOY, LLC - MA 892D CHARLTON MA
2020-06-10 508-960-6XXX 6000–6999Assigned ONVOY, LLC - MA 892D NATICK MA
2020-06-10 508-960-7XXX 7000–7999Assigned ONVOY, LLC - MA 892D NATICK MA
2020-05-08 508-403-5XXX 5000–5999Assigned ONVOY, LLC - MA 892D CATAUMET MA
2020-05-08 508-403-6XXX 6000–6999Assigned ONVOY, LLC - MA 892D CATAUMET MA
2020-05-06 508-552-5XXX 5000–5999Assigned ONVOY, LLC - MA 892D WORCESTER MA
2020-05-06 508-552-6XXX 6000–6999Assigned ONVOY, LLC - MA 892D WORCESTER MA
2020-04-23 508-980-4XXX 4000–4999Assigned ONVOY, LLC - MA 892D CHARLTON MA
2020-03-19 508-504-2XXX 2000–2999Assigned ONVOY, LLC - MA 892D WEBSTER MA
2020-03-19 508-504-3XXX 3000–3999Assigned ONVOY, LLC - MA 892D WEBSTER MA
2020-03-19 508-504-4XXX 4000–4999Assigned ONVOY, LLC - MA 892D WEBSTER MA
2020-03-19 508-504-5XXX 5000–5999Assigned ONVOY, LLC - MA 892D WEBSTER MA
2020-03-19 508-504-6XXX 6000–6999Assigned ONVOY, LLC - MA 892D WEBSTER MA
2019-12-17 508-519-3XXX 3000–3999Assigned ONVOY, LLC - MA 892D WORCESTER MA
2019-12-17 508-796-9XXX 9000–9999Assigned ONVOY, LLC - MA 892D WORCESTER MA
2019-10-24 508-684-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J VINEYRDHVN MA
2019-10-18 508-709-8XXX 8000–8999Assigned PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA 268F NORTHBORO MA
2019-10-09 508-239-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 FRAMINGHAM MA
2019-10-09 508-403-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J CATAUMET MA
2019-10-09 508-651-6XXX 6000–6999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 NATICK MA
2019-10-09 508-825-4XXX 4000–4999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 NANTUCKET MA
2019-08-26 508-239-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J FRAMINGHAM MA
2019-08-20 508-817-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - MA 990E NEWBEDFORD MA
2019-08-15 508-239-0XXX 0000–0999Assigned METROPCS, INC. 5562 FRAMINGHAM MA
2019-08-08 508-374-3XXX 3000–3999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 NANTUCKET MA
2019-07-16 508-386-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 TAUNTON MA
2019-06-28 508-239-5XXX 5000–5999Assigned METROPCS, INC. 5562 FRAMINGHAM MA
2019-06-28 508-239-6XXX 6000–6999Assigned METROPCS, INC. 5562 FRAMINGHAM MA
2019-06-10 508-239-3XXX 3000–3999Assigned METROPCS, INC. 5562 FRAMINGHAM MA
2019-06-10 508-239-4XXX 4000–4999Assigned METROPCS, INC. 5562 FRAMINGHAM MA
2019-06-03 508-206-8XXX 8000–8999Assigned ONVOY, LLC - MA 892D NATICK MA
2019-06-03 508-206-9XXX 9000–9999Assigned ONVOY, LLC - MA 892D NATICK MA
2019-06-03 508-374-9XXX 9000–9999Assigned ONVOY, LLC - MA 892D NANTUCKET MA
2019-06-03 508-452-2XXX 2000–2999Assigned ONVOY, LLC - MA 892D MANSFIELD MA
2019-06-03 508-500-6XXX 6000–6999Assigned ONVOY, LLC - MA 892D MARION MA
2019-06-03 508-504-7XXX 7000–7999Assigned ONVOY, LLC - MA 892D WEBSTER MA
2019-06-03 508-504-9XXX 9000–9999Assigned ONVOY, LLC - MA 892D WEBSTER MA
2019-06-03 508-571-0XXX 0000–0999Assigned ONVOY, LLC - MA 892D NORTHBORO MA
2019-06-03 508-593-0XXX 0000–0999Assigned ONVOY, LLC - MA 892D CHATHAM MA
2019-06-03 508-593-1XXX 1000–1999Assigned ONVOY, LLC - MA 892D CHATHAM MA
2019-06-03 508-594-3XXX 3000–3999Assigned ONVOY, LLC - MA 892D MANSFIELD MA
2019-06-03 508-680-0XXX 0000–0999Assigned ONVOY, LLC - MA 892D NANTUCKET MA
2019-06-03 508-691-2XXX 2000–2999Assigned ONVOY, LLC - MA 892D NORTHBORO MA
2019-06-03 508-748-5XXX 5000–5999Assigned ONVOY, LLC - MA 892D MARION MA
2019-05-02 508-239-2XXX 2000–2999Assigned METROPCS, INC. 5562 FRAMINGHAM MA
2019-05-02 508-571-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - MA 990E NORTHBORO MA
2019-05-02 508-589-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - MA 990E HOPKINTON 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.