NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

0 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, all time — NPA 586
PAETEC ITEL, LLC 42
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
2012-04-19 586-248-6XXX 6000–6999Assigned PAETEC ITEL, LLC 829J RICHMOND MI
2011-01-28 586-244-4XXX 4000–4999Assigned PAETEC ITEL, LLC 829J NEW HAVEN MI
2010-06-03 586-992-4XXX 4000–4999Assigned PAETEC ITEL, LLC 829J WASHINGTON MI
2009-10-15 586-232-6XXX 6000–6999Assigned PAETEC ITEL, LLC 829J WASHINGTON MI
2009-10-15 586-928-8XXX 8000–8999Assigned PAETEC ITEL, LLC 829J NEW HAVEN MI
2009-10-14 586-625-8XXX 8000–8999Assigned PAETEC ITEL, LLC 829J ARMADA MI
2009-10-14 586-648-4XXX 4000–4999Assigned PAETEC ITEL, LLC 829J NEWBALTIMR MI
2009-10-13 586-372-4XXX 4000–4999Assigned PAETEC ITEL, LLC 829J ROMEO MI
2009-10-13 586-565-6XXX 6000–6999Assigned PAETEC ITEL, LLC 829J WARREN MI
2009-10-05 586-209-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J ROSEVILLE MI
2009-10-05 586-231-3XXX 3000–3999Assigned PAETEC ITEL, LLC 829J MT CLEMENS MI
2009-10-05 586-467-4XXX 4000–4999Assigned PAETEC ITEL, LLC 829J CENTERLINE MI
2009-10-05 586-991-4XXX 4000–4999Assigned PAETEC ITEL, LLC 829J UTICA MI
2009-02-06 586-421-7XXX 7000–7999Assigned PAETEC ITEL, LLC 829J MT CLEMENS MI
2009-02-06 586-840-4XXX 4000–4999Assigned PAETEC ITEL, LLC 829J MT CLEMENS MI
2007-11-27 586-244-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J NEW HAVEN MI
2007-11-27 586-281-7XXX 7000–7999Assigned PAETEC ITEL, LLC 829J ROMEO MI
2007-11-27 586-716-6XXX 6000–6999Assigned PAETEC ITEL, LLC 829J NEWBALTIMR MI
2007-11-27 586-741-7XXX 7000–7999Assigned PAETEC ITEL, LLC 829J MT CLEMENS MI
2007-11-27 586-806-8XXX 8000–8999Assigned PAETEC ITEL, LLC 829J CENTERLINE MI
2007-04-20 586-491-2XXX 2000–2999Assigned PAETEC ITEL, LLC 829J ROSEVILLE MI
2007-02-20 586-439-6XXX 6000–6999Assigned PAETEC ITEL, LLC 829J ROSEVILLE MI
2006-11-15 586-855-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J MT CLEMENS MI
2006-03-30 586-438-2XXX 2000–2999Assigned PAETEC ITEL, LLC 829J WARREN MI
2006-03-30 586-737-9XXX 9000–9999Assigned PAETEC ITEL, LLC 829J UTICA MI
2006-01-31 586-486-8XXX 8000–8999Assigned PAETEC ITEL, LLC 829J CENTERLINE MI
2006-01-12 586-362-2XXX 2000–2999Assigned PAETEC ITEL, LLC 829J ROSEVILLE MI
2005-11-22 586-477-9XXX 9000–9999Assigned PAETEC ITEL, LLC 829J MT CLEMENS MI
2005-07-26 586-330-2XXX 2000–2999Assigned PAETEC ITEL, LLC 829J NEWBALTIMR MI
2005-07-14 586-270-8XXX 8000–8999Assigned PAETEC ITEL, LLC 829J NEW HAVEN MI
2005-07-14 586-331-7XXX 7000–7999Assigned PAETEC ITEL, LLC 829J ROMEO MI
2005-03-18 586-222-0XXX 0000–0999Assigned PAETEC ITEL, LLC 829J ROSEVILLE MI
2005-03-14 586-207-6XXX 6000–6999Assigned PAETEC ITEL, LLC 829J WASHINGTON MI
2005-03-14 586-393-6XXX 6000–6999Assigned PAETEC ITEL, LLC 829J CENTERLINE MI
2004-12-17 586-258-3XXX 3000–3999Assigned PAETEC ITEL, LLC 829J WARREN MI
2004-12-17 586-262-3XXX 3000–3999Assigned PAETEC ITEL, LLC 829J UTICA MI
2004-12-17 586-477-2XXX 2000–2999Assigned PAETEC ITEL, LLC 829J MT CLEMENS MI
2004-01-29 586-273-3XXX 3000–3999Assigned PAETEC ITEL, LLC 829J NEWBALTIMR MI
2004-01-29 586-372-2XXX 2000–2999Assigned PAETEC ITEL, LLC 829J ROMEO MI
2004-01-29 586-473-3XXX 3000–3999Assigned PAETEC ITEL, LLC 829J ARMADA MI
2004-01-29 586-646-7XXX 7000–7999Assigned PAETEC ITEL, LLC 829J NEW HAVEN MI
2004-01-29 586-935-6XXX 6000–6999Assigned PAETEC ITEL, LLC 829J WASHINGTON MI

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.