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 985
MCIMETRO ACCESS TRANSMISSION SERVICES LLC - LA 27
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
2015-03-13 985-888-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - LA 8764 COVINGTON LA
2015-03-11 985-614-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - LA 8764 KENTWOOD LA
2013-10-18 985-709-8XXX 8000–8999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - LA 8764 HOUMA LA
2011-11-23 985-284-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - LA 8764 AMITE CITY LA
2010-11-01 985-250-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - LA 8764 PEARLRIVER LA
2010-11-01 985-282-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - LA 8764 LACOMBE LA
2010-11-01 985-322-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - LA 8764 FRANKLINTN LA
2010-11-01 985-441-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - LA 8764 CHACKBAY LA
2010-01-14 985-206-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - LA 8764 MADISONVL LA
2010-01-14 985-236-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - LA 8764 PIERREPART LA
2010-01-14 985-242-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - LA 8764 LOCKPORT LA
2010-01-14 985-260-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - LA 8764 FOLSOM LA
2010-01-14 985-267-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - LA 8764 EDGARD LA
2010-01-14 985-513-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - LA 8764 NAPOLEONVL LA
2010-01-14 985-664-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - LA 8764 RACELAND LA
2010-01-14 985-720-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - LA 8764 MONTEGUT LA
2009-09-04 985-570-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - LA 8764 BOGALUSA LA
2006-04-05 985-231-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - LA 8764 MANDEVILLE LA
2006-04-05 985-277-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - LA 8764 HAMMOND LA
2006-04-05 985-308-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - LA 8764 LULING LA
2006-04-05 985-354-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - LA 8764 MORGANCITY LA
2006-04-05 985-492-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - LA 8764 THIBODAUX LA
2006-04-05 985-590-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - LA 8764 COVINGTON LA
2006-04-05 985-601-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - LA 8764 HOUMA LA
2006-04-05 985-603-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - LA 8764 NORCO LA
2006-04-05 985-718-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - LA 8764 SLIDELL LA
2004-11-29 985-212-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - LA 8764 LAPLACE LA

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.