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 505
TELEPORT COMMUNICATIONS AMERICA NM-LLC 23
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
2025-04-14 505-651-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA NM-LLC 450C ALBUQURQUE NM
2023-08-30 505-578-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA NM-LLC 450C ALBUQURQUE NM
2023-06-05 505-581-9XXX 9000–9999Assigned TELEPORT COMMUNICATIONS AMERICA NM-LLC 450C ALBUQURQUE NM
2021-07-19 505-737-0XXX 0000–0999Assigned TELEPORT COMMUNICATIONS AMERICA NM-LLC 450C ALBUQURQUE NM
2021-07-19 505-785-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA NM-LLC 450C ALBUQURQUE NM
2020-12-01 505-337-8XXX 8000–8999Assigned TELEPORT COMMUNICATIONS AMERICA NM-LLC 450C ALBUQURQUE NM
2020-11-12 505-499-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA NM-LLC 450C ZUNI NM
2020-09-05 505-337-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA NM-LLC 450C ALBUQURQUE NM
2020-08-26 505-744-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA NM-LLC 450C RAMAH NM
2019-08-14 505-737-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA NM-LLC 450C ALBUQURQUE NM
2019-05-21 505-370-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA NM-LLC 450C LAS VEGAS NM
2017-08-15 505-305-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA NM-LLC 450C ALBUQURQUE NM
2017-07-18 505-208-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA NM-LLC 450C ALBUQURQUE NM
2016-04-22 505-355-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA NM-LLC 450C ALBUQURQUE NM
2016-01-19 505-415-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA NM-LLC 450C ALBUQURQUE NM
2015-11-10 505-658-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA NM-LLC 450C GRANTS NM
2014-05-14 505-600-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA NM-LLC 450C ALBUQURQUE NM
2012-10-08 505-423-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA NM-LLC 450C ESPANOLA NM
2012-07-18 505-399-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA NM-LLC 450C GALLUP NM
2012-02-15 505-386-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA NM-LLC 450C AZTEC NM
2011-08-23 505-427-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA NM-LLC 450C FARMINGTON NM
2011-01-26 505-428-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA NM-LLC 450C SANTA FE NM
2010-06-14 505-433-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA NM-LLC 450C ALBUQURQUE NM

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.