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
2019-05-02 508-827-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - MA 990E HYANNIS MA
2019-04-11 508-242-1XXX 1000–1999Assigned ONVOY, LLC - MA 892D MEDFIELD MA
2019-04-11 508-863-4XXX 4000–4999Assigned ONVOY, LLC - MA 892D ROCHESTER MA
2019-04-05 508-964-9XXX 9000–9999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 MANSFIELD MA
2019-03-27 508-206-1XXX 1000–1999Assigned IP HORIZON LLC 515J NATICK MA
2019-03-27 508-348-8XXX 8000–8999Assigned IP HORIZON LLC 515J CHATHAM MA
2019-03-27 508-365-0XXX 0000–0999Assigned IP HORIZON LLC 515J WORCESTER MA
2019-03-27 508-437-9XXX 9000–9999Assigned IP HORIZON LLC 515J BARNSTABLE MA
2019-03-27 508-440-0XXX 0000–0999Assigned IP HORIZON LLC 515J FRANKLIN MA
2019-03-27 508-519-9XXX 9000–9999Assigned IP HORIZON LLC 515J WORCESTER MA
2019-03-12 508-305-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J MARLBORO MA
2019-02-28 508-256-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J BROCKTON MA
2019-01-25 508-590-9XXX 9000–9999Assigned ONVOY, LLC - MA 892D FRANKLIN MA
2019-01-24 508-256-9XXX 9000–9999Assigned ONVOY, LLC - MA 892D BROCKTON MA
2019-01-24 508-343-6XXX 6000–6999Assigned ONVOY, LLC - MA 892D SEEKONK MA
2019-01-24 508-403-1XXX 1000–1999Assigned ONVOY, LLC - MA 892D CATAUMET MA
2019-01-24 508-466-0XXX 0000–0999Assigned ONVOY, LLC - MA 892D NORTHBORO MA
2019-01-24 508-504-0XXX 0000–0999Assigned ONVOY, LLC - MA 892D WEBSTER MA
2019-01-24 508-504-8XXX 8000–8999Assigned ONVOY, LLC - MA 892D WEBSTER MA
2019-01-24 508-639-4XXX 4000–4999Assigned ONVOY, LLC - MA 892D SOUTHGATE MA
2019-01-24 508-905-8XXX 8000–8999Assigned ONVOY, LLC - MA 892D WELLFLEET MA
2019-01-24 508-936-5XXX 5000–5999Assigned ONVOY, LLC - MA 892D NORTHBORO MA
2019-01-23 508-355-3XXX 3000–3999Assigned ONVOY, LLC - MA 892D MARION MA
2019-01-23 508-355-9XXX 9000–9999Assigned ONVOY, LLC - MA 892D MARION MA
2019-01-10 508-310-8XXX 8000–8999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 NATICK MA
2018-12-20 508-618-9XXX 9000–9999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 MANSFIELD MA
2018-12-13 508-807-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 BRIDGEWTR MA
2018-12-12 508-573-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 MARLBORO MA
2018-11-28 508-691-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 NORTHBORO MA
2018-11-09 508-217-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 BRIDGEWTR MA
2018-11-07 508-206-0XXX 0000–0999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 NATICK MA
2018-10-30 508-437-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J BARNSTABLE MA
2018-10-26 508-618-5XXX 5000–5999Assigned ONVOY, LLC - MA 892D MANSFIELD MA
2018-08-30 508-279-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 BRIDGEWTR MA
2018-08-16 508-239-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 FRAMINGHAM MA
2018-08-16 508-239-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 FRAMINGHAM MA
2018-08-02 508-810-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NATICK MA
2018-07-09 508-807-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 BRIDGEWTR MA
2018-06-26 508-448-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 REHOBOTH MA
2018-06-13 508-618-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 MANSFIELD MA
2018-06-12 508-825-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 NANTUCKET MA
2018-06-05 508-389-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 WESTBORO MA
2018-04-23 508-431-9XXX 9000–9999Assigned METROPCS, INC. 5562 ATTLEBORO MA
2018-04-19 508-915-8XXX 8000–8999Assigned TELNYX LLC 073H SOUTHGATE MA
2018-04-19 508-939-5XXX 5000–5999Assigned TELNYX LLC 073H EDGARTOWN MA
2018-04-03 508-300-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J FALL RIVER MA
2018-03-28 508-424-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J FRAMINGHAM MA
2018-03-22 508-807-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 BRIDGEWTR MA
2018-03-07 508-206-2XXX 2000–2999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 NATICK MA
2018-03-06 508-504-1XXX 1000–1999Assigned ONVOY, LLC - MA 892D WEBSTER 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.