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
2010-08-27 860-574-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NEW LONDON CT
2010-08-27 860-574-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NEW LONDON CT
2010-08-27 860-806-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HARWINTON CT
2010-08-25 860-222-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - CT 199F NORWICH CT
2010-08-25 860-822-2XXX 2000–2999Assigned PAETEC ITEL, LLC 829J NORWICH CT
2010-08-23 860-506-8XXX 8000–8999Assigned PAETEC ITEL, LLC 829J BRISTOL CT
2010-08-23 860-854-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J MIDDLETOWN CT
2010-08-17 860-352-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - CT 199F CANTON CT
2010-08-17 860-495-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - CT 199F PAWCATUCK CT
2010-08-17 860-578-9XXX 9000–9999Assigned SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 9147 HARTFORD CT
2010-08-17 860-880-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - CT 199F THOMASTON CT
2010-08-17 860-907-8XXX 8000–8999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 WINDSOR CT
2010-08-10 860-264-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - CT 199F SIMSBURY CT
2010-08-10 860-337-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - CT 199F COLUMBIA CT
2010-08-10 860-373-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 6388 NORWICH CT
2010-08-10 860-384-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - CT 199F SOUTHINGTN CT
2010-08-10 860-387-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - CT 199F TORRINGTON CT
2010-08-10 860-481-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - CT 199F PUTNAM CT
2010-08-10 860-634-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - CT 199F WILLIMNTIC CT
2010-08-10 860-634-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 6388 WILLIMNTIC CT
2010-08-10 860-692-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 6388 HARTFORD CT
2010-08-10 860-692-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 6388 HARTFORD CT
2010-08-10 860-717-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - CT 199F NEWMILFORD CT
2010-07-26 860-477-1XXX 1000–1999Assigned CHARTER IP ENABLED SERVICES, LLC 792K STORRS CT
2010-07-20 860-269-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - CT 199F FARMINGTON CT
2010-07-16 860-245-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - CT 199F MYSTIC CT
2010-07-13 860-386-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - CT 199F WINDSORLKS CT
2010-07-12 860-281-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - CT 199F MANCHESTER CT
2010-07-12 860-333-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - CT 199F NEW LONDON CT
2010-07-12 860-342-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - CT 199F MIDDLETOWN CT
2010-07-12 860-348-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - CT 199F NEWBRITAIN CT
2010-07-12 860-356-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NEWBRITAIN CT
2010-07-12 860-726-7XXX 7000–7999Assigned PAETEC ITEL, LLC 829J HARTFORD CT
2010-07-09 860-266-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - CT 199F GLASTONBY CT
2010-07-09 860-990-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 6388 HARTFORD CT
2010-07-06 860-308-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 6388 HARTFORD CT
2010-07-06 860-422-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 6388 HARTFORD CT
2010-07-06 860-422-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 6388 HARTFORD CT
2010-06-30 860-867-1XXX 1000–1999Assigned SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 9147 NEW LONDON CT
2010-06-30 860-867-2XXX 2000–2999Assigned SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 9147 NEW LONDON CT
2010-06-30 860-867-3XXX 3000–3999Assigned SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 9147 NEW LONDON CT
2010-06-30 860-867-4XXX 4000–4999Assigned SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 9147 NEW LONDON CT
2010-06-30 860-867-5XXX 5000–5999Assigned SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 9147 NEW LONDON CT
2010-06-28 860-531-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J COLCHESTER CT
2010-06-18 860-929-7XXX 7000–7999Assigned PAETEC ITEL, LLC 829J HARTFORD CT
2010-06-11 860-574-9XXX 9000–9999Assigned IDT AMERICA, CORP. - CT 466E NEW LONDON CT
2010-06-11 860-938-4XXX 4000–4999Assigned OMNIPOINT COMMUNICATIONS, INC. - CT 6624 DEEP RIVER CT
2010-06-04 860-253-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - CT 199F ENFIELD CT
2010-06-04 860-261-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - CT 199F BRISTOL CT
2010-06-04 860-317-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - CT 199F PLAINFIELD 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.