NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

13 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 10
OMNIPOINT COMMUNICATIONS, INC. - CT 1
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - 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
2011-05-18 860-806-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HARWINTON CT
2011-05-18 860-806-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HARWINTON CT
2011-05-10 860-807-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MIDDLETOWN CT
2011-05-10 860-807-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MIDDLETOWN CT
2011-05-09 860-740-3XXX 3000–3999Assigned PAETEC ITEL, LLC 829J MIDDLETOWN CT
2011-05-04 860-222-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - CT 199F NORWICH CT
2011-05-04 860-249-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - CT 199F HARTFORD CT
2011-05-04 860-249-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - CT 199F HARTFORD CT
2011-05-04 860-265-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - CT 199F ENFIELD CT
2011-05-04 860-288-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - CT 199F MANCHESTER CT
2011-05-04 860-323-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - CT 199F SIMSBURY CT
2011-05-04 860-333-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - CT 199F NEW LONDON CT
2011-05-04 860-358-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - CT 199F MIDDLETOWN CT
2011-05-04 860-375-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - CT 199F ROCKVILLE CT
2011-05-04 860-387-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - CT 199F TORRINGTON CT
2011-05-04 860-404-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - CT 199F FARMINGTON CT
2011-05-04 860-438-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - CT 199F NEWBRITAIN CT
2011-05-04 860-438-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - CT 199F NEWBRITAIN CT
2011-05-04 860-506-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - CT 199F BRISTOL CT
2011-05-04 860-541-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - CT 199F HARTFORD CT
2011-05-04 860-717-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - CT 199F NEWMILFORD CT
2011-05-04 860-758-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - CT 199F WINDSORLKS CT
2011-05-04 860-952-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - CT 199F HARTFORD CT
2011-04-27 860-422-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - CT 199F HARTFORD CT
2011-04-27 860-572-3XXX 3000–3999Assigned PAETEC ITEL, LLC 829J MYSTIC CT
2011-04-27 860-792-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - CT 199F PUTNAM CT
2011-04-22 860-709-6XXX 6000–6999Assigned PAETEC ITEL, LLC 829J HARTFORD CT
2011-04-20 860-880-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - CT 199F THOMASTON CT
2011-04-20 860-932-5XXX 5000–5999Assigned SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 9147 DANIELSON CT
2011-04-14 860-238-6XXX 6000–6999Assigned SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 9147 WINSTED CT
2011-04-14 860-381-8XXX 8000–8999Assigned SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 9147 LEDYARD CT
2011-04-14 860-387-6XXX 6000–6999Assigned SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 9147 TORRINGTON CT
2011-04-14 860-393-5XXX 5000–5999Assigned SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 9147 LITCHFIELD CT
2011-04-14 860-410-5XXX 5000–5999Assigned SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 9147 PLAINVILLE CT
2011-04-14 860-415-5XXX 5000–5999Assigned SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 9147 MYSTIC CT
2011-04-14 860-420-5XXX 5000–5999Assigned SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 9147 STORRS CT
2011-04-14 860-457-5XXX 5000–5999Assigned SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 9147 PLAINFIELD CT
2011-04-14 860-468-7XXX 7000–7999Assigned SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 9147 LEBANON CT
2011-04-14 860-492-5XXX 5000–5999Assigned SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 9147 SHARON CT
2011-04-14 860-495-6XXX 6000–6999Assigned SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 9147 PAWCATUCK CT
2011-04-14 860-497-6XXX 6000–6999Assigned SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 9147 NOTHOMPSON CT
2011-04-14 860-513-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - CT 199F HARTFORD CT
2011-04-14 860-542-4XXX 4000–4999Assigned SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 9147 NORFOLK CT
2011-04-14 860-577-5XXX 5000–5999Assigned SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 9147 OLD SAYBRK CT
2011-04-14 860-579-5XXX 5000–5999Assigned SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 9147 HADDAM CT
2011-04-14 860-591-6XXX 6000–6999Assigned SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 9147 JEWETTCITY CT
2011-04-14 860-592-5XXX 5000–5999Assigned SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 9147 KENT CT
2011-04-14 860-596-5XXX 5000–5999Assigned SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 9147 LAKEVILLE CT
2011-04-14 860-598-1XXX 1000–1999Assigned SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 9147 LYME CT
2011-04-14 860-619-5XXX 5000–5999Assigned SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 9147 WASHINGTON 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.