NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

0 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, all time — NPA 616
CHARTER IP ENABLED SERVICES, LLC 53
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
2025-03-06 616-400-3XXX 3000–3999Assigned CHARTER IP ENABLED SERVICES, LLC 792K SARANAC MI
2024-03-01 616-524-9XXX 9000–9999Assigned CHARTER IP ENABLED SERVICES, LLC 792K GRATTAN MI
2024-02-21 616-297-1XXX 1000–1999Assigned CHARTER IP ENABLED SERVICES, LLC 792K LOWELL MI
2024-02-21 616-357-1XXX 1000–1999Assigned CHARTER IP ENABLED SERVICES, LLC 792K ADA MI
2018-06-01 616-416-3XXX 3000–3999Assigned CHARTER IP ENABLED SERVICES, LLC 792K HOLLAND MI
2017-06-12 616-448-4XXX 4000–4999Assigned CHARTER IP ENABLED SERVICES, LLC 792K DRENTHE MI
2015-12-02 616-986-1XXX 1000–1999Assigned CHARTER IP ENABLED SERVICES, LLC 792K ALLENDALE MI
2015-11-10 616-414-9XXX 9000–9999Assigned CHARTER IP ENABLED SERVICES, LLC 792K GRANDHAVEN MI
2015-10-07 616-377-7XXX 7000–7999Assigned CHARTER IP ENABLED SERVICES, LLC 792K HOLLAND MI
2014-12-08 616-239-1XXX 1000–1999Assigned CHARTER IP ENABLED SERVICES, LLC 792K ZEELAND MI
2014-09-23 616-899-1XXX 1000–1999Assigned CHARTER IP ENABLED SERVICES, LLC 792K CONKLIN MI
2013-11-22 616-379-4XXX 4000–4999Assigned CHARTER IP ENABLED SERVICES, LLC 792K HUDSONVL MI
2013-10-04 616-414-7XXX 7000–7999Assigned CHARTER IP ENABLED SERVICES, LLC 792K GRANDHAVEN MI
2013-08-23 616-835-9XXX 9000–9999Assigned CHARTER IP ENABLED SERVICES, LLC 792K GREENVILLE MI
2013-07-30 616-951-7XXX 7000–7999Assigned CHARTER IP ENABLED SERVICES, LLC 792K ROCKFORD MI
2013-07-16 616-383-1XXX 1000–1999Assigned CHARTER IP ENABLED SERVICES, LLC 792K SPARTA MI
2013-04-30 616-523-4XXX 4000–4999Assigned CHARTER IP ENABLED SERVICES, LLC 792K IONIA MI
2013-04-03 616-294-1XXX 1000–1999Assigned CHARTER IP ENABLED SERVICES, LLC 792K HOLLAND MI
2012-09-25 616-545-2XXX 2000–2999Assigned CHARTER IP ENABLED SERVICES, LLC 792K ORLEANS MI
2012-09-25 616-757-2XXX 2000–2999Assigned CHARTER IP ENABLED SERVICES, LLC 792K BORCULO MI
2012-05-18 616-275-1XXX 1000–1999Assigned CHARTER IP ENABLED SERVICES, LLC 792K CALEDONIA MI
2012-05-14 616-414-5XXX 5000–5999Assigned CHARTER IP ENABLED SERVICES, LLC 792K GRANDHAVEN MI
2012-05-14 616-439-3XXX 3000–3999Assigned CHARTER IP ENABLED SERVICES, LLC 792K CEDAR SPG MI
2011-05-26 616-741-4XXX 4000–4999Assigned CHARTER IP ENABLED SERVICES, LLC 792K ZEELAND MI
2010-03-17 616-884-5XXX 5000–5999Assigned CHARTER IP ENABLED SERVICES, LLC 792K ROCKFORD MI
2009-06-11 616-232-2XXX 2000–2999Assigned CHARTER IP ENABLED SERVICES, LLC 792K GREENVILLE MI
2009-06-11 616-298-7XXX 7000–7999Assigned CHARTER IP ENABLED SERVICES, LLC 792K HOLLAND MI
2009-06-11 616-607-2XXX 2000–2999Assigned CHARTER IP ENABLED SERVICES, LLC 792K GRANDHAVEN MI
2008-06-04 616-935-7XXX 7000–7999Assigned CHARTER IP ENABLED SERVICES, LLC 792K GRANDHAVEN MI
2008-04-09 616-796-8XXX 8000–8999Assigned CHARTER IP ENABLED SERVICES, LLC 792K HOLLAND MI
2007-01-25 616-952-0XXX 0000–0999Assigned CHARTER IP ENABLED SERVICES, LLC 792K KENT CITY MI
2007-01-24 616-200-5XXX 5000–5999Assigned CHARTER IP ENABLED SERVICES, LLC 792K TRUFANT MI
2007-01-24 616-209-5XXX 5000–5999Assigned CHARTER IP ENABLED SERVICES, LLC 792K HUDSONVL MI
2007-01-24 616-359-9XXX 9000–9999Assigned CHARTER IP ENABLED SERVICES, LLC 792K DORR MI
2007-01-24 616-371-7XXX 7000–7999Assigned CHARTER IP ENABLED SERVICES, LLC 792K JAMESTOWN MI
2007-01-24 616-384-3XXX 3000–3999Assigned CHARTER IP ENABLED SERVICES, LLC 792K COOPERSVL MI
2007-01-24 616-431-5XXX 5000–5999Assigned CHARTER IP ENABLED SERVICES, LLC 792K MARNE MI
2007-01-24 616-523-6XXX 6000–6999Assigned CHARTER IP ENABLED SERVICES, LLC 792K IONIA MI
2007-01-24 616-536-2XXX 2000–2999Assigned CHARTER IP ENABLED SERVICES, LLC 792K CALEDONIA MI
2007-01-24 616-741-9XXX 9000–9999Assigned CHARTER IP ENABLED SERVICES, LLC 792K ZEELAND MI
2007-01-24 616-803-1XXX 1000–1999Assigned CHARTER IP ENABLED SERVICES, LLC 792K DUTTON MI
2007-01-24 616-868-2XXX 2000–2999Assigned CHARTER IP ENABLED SERVICES, LLC 792K ALTO MI
2007-01-23 616-515-6XXX 6000–6999Assigned CHARTER IP ENABLED SERVICES, LLC 792K CASNOVIA MI
2007-01-23 616-643-8XXX 8000–8999Assigned CHARTER IP ENABLED SERVICES, LLC 792K GRAND RPDS MI
2007-01-17 616-205-5XXX 5000–5999Assigned CHARTER IP ENABLED SERVICES, LLC 792K SPARTA MI
2007-01-17 616-244-3XXX 3000–3999Assigned CHARTER IP ENABLED SERVICES, LLC 792K BELDING MI
2007-01-17 616-263-9XXX 9000–9999Assigned CHARTER IP ENABLED SERVICES, LLC 792K CEDAR SPG MI
2007-01-17 616-298-8XXX 8000–8999Assigned CHARTER IP ENABLED SERVICES, LLC 792K HOLLAND MI
2007-01-17 616-557-3XXX 3000–3999Assigned CHARTER IP ENABLED SERVICES, LLC 792K SAND LAKE MI
2007-01-17 616-607-8XXX 8000–8999Assigned CHARTER IP ENABLED SERVICES, LLC 792K GRANDHAVEN MI

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.