NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

17 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 860
ONVOY, LLC - CT 12
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 2
PEERLESS NETWORK OF CONNECTICUT, LLC - CT 1
OMNIPOINT COMMUNICATIONS, INC. - CT 1
BANDWIDTH.COM CLEC, LLC - CT 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
2010-06-04 860-375-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - CT 199F ROCKVILLE CT
2010-06-04 860-412-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - CT 199F DANIELSON CT
2010-06-04 860-458-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - CT 199F STAFFD SPG CT
2010-06-04 860-498-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - CT 199F COVENTRY CT
2010-06-04 860-552-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - CT 199F CLINTON CT
2010-06-04 860-578-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - CT 199F HARTFORD CT
2010-06-04 860-578-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - CT 199F HARTFORD CT
2010-06-04 860-595-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - CT 199F HARTFORD CT
2010-06-04 860-697-4XXX 4000–4999Assigned PAETEC ITEL, LLC 829J WINDSOR CT
2010-06-04 860-952-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - CT 199F HARTFORD CT
2010-05-27 860-506-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J BRISTOL CT
2010-05-26 860-759-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MIDDLETOWN CT
2010-05-22 860-783-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J MANCHESTER CT
2010-05-22 860-920-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - CT 4800 HARTFORD CT
2010-05-13 860-389-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NEW LONDON CT
2010-05-07 860-308-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HARTFORD CT
2010-05-07 860-308-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HARTFORD CT
2010-05-07 860-308-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HARTFORD CT
2010-05-07 860-422-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HARTFORD CT
2010-05-07 860-471-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HARTFORD CT
2010-05-07 860-471-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HARTFORD CT
2010-05-07 860-471-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 6388 HARTFORD CT
2010-05-07 860-471-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 6388 HARTFORD CT
2010-05-03 860-308-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - CT 199F HARTFORD CT
2010-04-29 860-902-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 WINDSOR CT
2010-04-20 860-591-2XXX 2000–2999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CT 7143 JEWETTCITY CT
2010-04-08 860-436-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 6388 HARTFORD CT
2010-04-08 860-436-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 6388 HARTFORD CT
2010-04-08 860-576-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 6388 WILLIMNTIC CT
2010-03-22 860-955-0XXX 0000–0999Assigned PEERLESS NETWORK OF CONNECTICUT, LLC - CT 539F HARTFORD CT
2010-03-22 860-955-1XXX 1000–1999Assigned ONVOY, LLC - CT 639C HARTFORD CT
2010-03-22 860-955-2XXX 2000–2999Assigned ONVOY, LLC - CT 639C HARTFORD CT
2010-03-22 860-955-3XXX 3000–3999Assigned ONVOY, LLC - CT 639C HARTFORD CT
2010-03-22 860-955-4XXX 4000–4999Assigned ONVOY, LLC - CT 639C HARTFORD CT
2010-03-22 860-955-5XXX 5000–5999Assigned ONVOY, LLC - CT 639C HARTFORD CT
2010-03-22 860-955-6XXX 6000–6999Assigned ONVOY, LLC - CT 639C HARTFORD CT
2010-03-22 860-955-7XXX 7000–7999Assigned ONVOY, LLC - CT 639C HARTFORD CT
2010-03-22 860-955-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - CT 199F HARTFORD CT
2010-03-22 860-955-9XXX 9000–9999Assigned PEERLESS NETWORK OF CONNECTICUT, LLC - CT 539F HARTFORD CT
2010-03-18 860-373-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - CT 199F NORWICH CT
2010-03-18 860-839-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NEWBRITAIN CT
2010-03-15 860-717-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CT 7143 NEWMILFORD CT
2010-03-08 860-372-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 6388 HARTFORD CT
2010-03-08 860-372-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 6388 HARTFORD CT
2010-03-08 860-451-2XXX 2000–2999Assigned SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 9147 NIANTIC CT
2010-03-08 860-552-3XXX 3000–3999Assigned SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 9147 CLINTON CT
2010-03-03 860-255-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - CT 199F FARMINGTON CT
2010-03-03 860-281-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - CT 199F MANCHESTER CT
2010-03-03 860-316-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - CT 199F MIDDLETOWN CT
2010-03-02 860-348-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - CT 199F NEWBRITAIN CT

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.