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 708
FIRST COMMUNICATIONS, LLC 142
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
2012-04-04 708-608-6XXX 6000–6999Assigned FIRST COMMUNICATIONS, LLC 460K PALOS PARK IL
2010-06-25 708-328-2XXX 2000–2999Assigned FIRST COMMUNICATIONS, LLC 460K LA GRANGE IL
2008-12-12 708-926-8XXX 8000–8999Assigned FIRST COMMUNICATIONS, LLC 460K BLUEISLAND IL
2008-07-21 708-248-9XXX 9000–9999Assigned FIRST COMMUNICATIONS, LLC 460K CHICAGOHTS IL
2008-05-15 708-273-8XXX 8000–8999Assigned FIRST COMMUNICATIONS, LLC 460K MAYWOOD IL
2007-11-08 708-414-5XXX 5000–5999Assigned FIRST COMMUNICATIONS, LLC 460K CRETE IL
2007-08-27 708-356-5XXX 5000–5999Assigned FIRST COMMUNICATIONS, LLC 460K MAYWOOD IL
2006-07-03 708-746-9XXX 9000–9999Assigned FIRST COMMUNICATIONS, LLC 460K MONEE IL
2006-06-05 708-375-8XXX 8000–8999Assigned FIRST COMMUNICATIONS, LLC 460K BELLWOOD IL
2006-06-05 708-469-5XXX 5000–5999Assigned FIRST COMMUNICATIONS, LLC 460K LA GRANGE IL
2006-04-19 708-667-2XXX 2000–2999Assigned FIRST COMMUNICATIONS, LLC 460K CHICGOZN03 IL
2005-10-21 708-492-5XXX 5000–5999Assigned FIRST COMMUNICATIONS, LLC 460K MAYWOOD IL
2005-10-18 708-390-2XXX 2000–2999Assigned FIRST COMMUNICATIONS, LLC 460K MOKENA IL
2005-10-12 708-753-4XXX 4000–4999Assigned FIRST COMMUNICATIONS, LLC 460K CHICAGOHTS IL
2005-07-22 708-336-7XXX 7000–7999Assigned FIRST COMMUNICATIONS, LLC 460K TINLEYPARK IL
2005-05-31 708-323-4XXX 4000–4999Assigned FIRST COMMUNICATIONS, LLC 460K CHICAGOHTS IL
2005-04-28 708-336-6XXX 6000–6999Assigned FIRST COMMUNICATIONS, LLC 460K TINLEYPARK IL
2005-02-07 708-776-2XXX 2000–2999Assigned FIRST COMMUNICATIONS, LLC 460K FOREST IL
2005-01-30 708-215-6XXX 6000–6999Assigned FIRST COMMUNICATIONS, LLC 460K LA GRANGE IL
2005-01-30 708-395-4XXX 4000–4999Assigned FIRST COMMUNICATIONS, LLC 460K RIVERGROVE IL
2005-01-30 708-398-6XXX 6000–6999Assigned FIRST COMMUNICATIONS, LLC 460K OAK LAWN IL
2005-01-30 708-405-5XXX 5000–5999Assigned FIRST COMMUNICATIONS, LLC 460K FOREST IL
2005-01-30 708-441-8XXX 8000–8999Assigned FIRST COMMUNICATIONS, LLC 460K CHICAGOHTS IL
2005-01-30 708-462-8XXX 8000–8999Assigned FIRST COMMUNICATIONS, LLC 460K THORNTON IL
2005-01-30 708-475-4XXX 4000–4999Assigned FIRST COMMUNICATIONS, LLC 460K SUMMIT IL
2005-01-30 708-480-8XXX 8000–8999Assigned FIRST COMMUNICATIONS, LLC 460K PALOS PARK IL
2005-01-30 708-587-7XXX 7000–7999Assigned FIRST COMMUNICATIONS, LLC 460K MONEE IL
2005-01-30 708-792-4XXX 4000–4999Assigned FIRST COMMUNICATIONS, LLC 460K PEOTONE IL
2005-01-29 708-221-4XXX 4000–4999Assigned FIRST COMMUNICATIONS, LLC 460K RIVERSIDE IL
2005-01-29 708-298-3XXX 3000–3999Assigned FIRST COMMUNICATIONS, LLC 460K CICERO IL
2005-01-29 708-303-4XXX 4000–4999Assigned FIRST COMMUNICATIONS, LLC 460K BERWYN IL
2005-01-29 708-487-2XXX 2000–2999Assigned FIRST COMMUNICATIONS, LLC 460K RIVERDALE IL
2005-01-29 708-590-8XXX 8000–8999Assigned FIRST COMMUNICATIONS, LLC 460K ORLAND IL
2005-01-27 708-215-7XXX 7000–7999Assigned FIRST COMMUNICATIONS, LLC 460K LA GRANGE IL
2005-01-27 708-223-3XXX 3000–3999Assigned FIRST COMMUNICATIONS, LLC 460K MAYWOOD IL
2005-01-27 708-234-3XXX 3000–3999Assigned FIRST COMMUNICATIONS, LLC 460K BELLWOOD IL
2005-01-27 708-249-1XXX 1000–1999Assigned FIRST COMMUNICATIONS, LLC 460K HOMEWOOD IL
2005-01-27 708-255-3XXX 3000–3999Assigned FIRST COMMUNICATIONS, LLC 460K BROOKFIELD IL
2005-01-27 708-260-5XXX 5000–5999Assigned FIRST COMMUNICATIONS, LLC 460K WESTERNSPG IL
2005-01-27 708-279-2XXX 2000–2999Assigned FIRST COMMUNICATIONS, LLC 460K CRETE IL
2005-01-27 708-294-6XXX 6000–6999Assigned FIRST COMMUNICATIONS, LLC 460K WILLOW SPG IL
2005-01-27 708-320-4XXX 4000–4999Assigned FIRST COMMUNICATIONS, LLC 460K CHICGOZN03 IL
2005-01-27 708-360-2XXX 2000–2999Assigned FIRST COMMUNICATIONS, LLC 460K CALUMET CY IL
2005-01-27 708-995-2XXX 2000–2999Assigned FIRST COMMUNICATIONS, LLC 460K MOKENA IL
2005-01-26 708-985-3XXX 3000–3999Assigned FIRST COMMUNICATIONS, LLC 460K HARVEY IL
2004-12-14 708-224-4XXX 4000–4999Assigned FIRST COMMUNICATIONS, LLC 460K BLUEISLAND IL
2004-12-14 708-253-6XXX 6000–6999Assigned FIRST COMMUNICATIONS, LLC 460K TINLEYPARK IL
2004-10-15 708-215-3XXX 3000–3999Assigned FIRST COMMUNICATIONS, LLC 460K LA GRANGE IL
2004-10-15 708-255-4XXX 4000–4999Assigned FIRST COMMUNICATIONS, LLC 460K BROOKFIELD IL
2004-10-15 708-435-7XXX 7000–7999Assigned FIRST COMMUNICATIONS, LLC 460K FOREST IL

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.