NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

7 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/20/2026

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
Clear Download CSV ↓
Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2016-07-08 508-690-9XXX 9000–9999Assigned PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA 268F EBRIDGEWTR MA
2016-06-21 508-819-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - MA 990E BRIDGEWTR MA
2016-06-20 508-440-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 FRANKLIN MA
2016-06-20 508-817-0XXX 0000–0999Assigned METROPCS, INC. 5562 NEWBEDFORD MA
2016-05-31 508-258-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J DENNIS MA
2016-05-27 508-392-1XXX 1000–1999Assigned IP HORIZON LLC 515J CATAUMET MA
2016-05-27 508-499-4XXX 4000–4999Assigned IP HORIZON LLC 515J OXFORD MA
2016-05-27 508-529-8XXX 8000–8999Assigned IP HORIZON LLC 515J UPTON MA
2016-05-27 508-680-5XXX 5000–5999Assigned IP HORIZON LLC 515J NANTUCKET MA
2016-05-27 508-893-5XXX 5000–5999Assigned IP HORIZON LLC 515J HOLLISTON MA
2016-05-26 508-299-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 FALMOUTH MA
2016-05-23 508-594-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 MANSFIELD MA
2016-04-27 508-851-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 MANSFIELD MA
2016-04-18 508-924-0XXX 0000–0999Assigned HD CARRIER LLC 321J EBRIDGEWTR MA
2016-04-18 508-924-1XXX 1000–1999Assigned HD CARRIER LLC 321J EBRIDGEWTR MA
2016-04-18 508-924-2XXX 2000–2999Assigned HD CARRIER LLC 321J EBRIDGEWTR MA
2016-04-18 508-924-3XXX 3000–3999Assigned HD CARRIER LLC 321J EBRIDGEWTR MA
2016-04-18 508-924-5XXX 5000–5999Assigned HD CARRIER LLC 321J EBRIDGEWTR MA
2016-04-18 508-924-7XXX 7000–7999Assigned HD CARRIER LLC 321J EBRIDGEWTR MA
2016-04-18 508-924-8XXX 8000–8999Assigned HD CARRIER LLC 321J EBRIDGEWTR MA
2016-04-18 508-924-9XXX 9000–9999Assigned HD CARRIER LLC 321J EBRIDGEWTR MA
2016-03-28 508-694-9XXX 9000–9999Assigned ONVOY, LLC - MA 892D DENNIS MA
2016-03-23 508-573-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 MARLBORO MA
2016-03-18 508-500-1XXX 1000–1999Assigned ONVOY, LLC - MA 892D MARION MA
2016-03-18 508-500-8XXX 8000–8999Assigned ONVOY, LLC - MA 892D MARION MA
2016-03-16 508-593-7XXX 7000–7999Assigned ONVOY, LLC - MA 892D CHATHAM MA
2016-03-16 508-593-8XXX 8000–8999Assigned ONVOY, LLC - MA 892D CHATHAM MA
2016-03-15 508-938-2XXX 2000–2999Assigned ONVOY, LLC - MA 892D WESTPORT MA
2016-03-09 508-719-9XXX 9000–9999Assigned ONVOY, LLC - MA 892D SHREWSBURY MA
2016-03-07 508-252-0XXX 0000–0999Assigned ONVOY, LLC - MA 892D REHOBOTH MA
2016-03-07 508-252-8XXX 8000–8999Assigned ONVOY, LLC - MA 892D REHOBOTH MA
2016-03-07 508-257-7XXX 7000–7999Assigned ONVOY, LLC - MA 892D SIASCONSET MA
2016-03-07 508-645-0XXX 0000–0999Assigned ONVOY, LLC - MA 892D CHILMARK MA
2016-03-07 508-645-8XXX 8000–8999Assigned ONVOY, LLC - MA 892D CHILMARK MA
2016-03-07 508-743-4XXX 4000–4999Assigned ONVOY, LLC - MA 892D BUZZARDSBY MA
2016-03-03 508-622-7XXX 7000–7999Assigned ONVOY, LLC - MA 892D NORTON MA
2016-03-03 508-882-2XXX 2000–2999Assigned ONVOY, LLC - MA 892D OAKHAM MA
2016-03-03 508-882-6XXX 6000–6999Assigned ONVOY, LLC - MA 892D OAKHAM MA
2016-03-03 508-952-3XXX 3000–3999Assigned ONVOY, LLC - MA 892D NORTON MA
2016-03-02 508-392-5XXX 5000–5999Assigned ONVOY, LLC - MA 892D CATAUMET MA
2016-03-02 508-392-6XXX 6000–6999Assigned ONVOY, LLC - MA 892D CATAUMET MA
2016-03-02 508-413-6XXX 6000–6999Assigned ONVOY, LLC - MA 892D PROVINCETN MA
2016-03-02 508-905-4XXX 4000–4999Assigned ONVOY, LLC - MA 892D WELLFLEET MA
2016-03-02 508-905-6XXX 6000–6999Assigned ONVOY, LLC - MA 892D WELLFLEET MA
2016-02-29 508-306-8XXX 8000–8999Assigned ONVOY, LLC - MA 892D HOLLISTON MA
2016-02-29 508-506-5XXX 5000–5999Assigned ONVOY, LLC - MA 892D OXFORD MA
2016-02-29 508-529-1XXX 1000–1999Assigned ONVOY, LLC - MA 892D UPTON MA
2016-02-29 508-529-5XXX 5000–5999Assigned ONVOY, LLC - MA 892D UPTON MA
2016-02-29 508-576-5XXX 5000–5999Assigned ONVOY, LLC - MA 892D NO ATTLEBO MA
2016-02-29 508-643-8XXX 8000–8999Assigned ONVOY, LLC - MA 892D NO ATTLEBO MA

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.