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 337
TELEPORT COMMUNICATIONS AMERICA LA - LLC 74
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
2026-03-18 337-620-0XXX 0000–0999Assigned TELEPORT COMMUNICATIONS AMERICA LA - LLC 653C LAFAYETTE LA
2026-03-18 337-620-1XXX 1000–1999Assigned TELEPORT COMMUNICATIONS AMERICA LA - LLC 653C LAFAYETTE LA
2026-03-18 337-620-2XXX 2000–2999Assigned TELEPORT COMMUNICATIONS AMERICA LA - LLC 653C LAFAYETTE LA
2026-03-18 337-620-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA LA - LLC 653C LAFAYETTE LA
2026-03-18 337-620-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA LA - LLC 653C LAFAYETTE LA
2026-03-18 337-620-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA LA - LLC 653C LAFAYETTE LA
2026-03-18 337-620-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA LA - LLC 653C LAFAYETTE LA
2026-03-18 337-620-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA LA - LLC 653C LAFAYETTE LA
2026-03-18 337-620-8XXX 8000–8999Assigned TELEPORT COMMUNICATIONS AMERICA LA - LLC 653C LAFAYETTE LA
2026-03-18 337-620-9XXX 9000–9999Assigned TELEPORT COMMUNICATIONS AMERICA LA - LLC 653C LAFAYETTE LA
2025-05-16 337-770-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA LA - LLC 653C LAFAYETTE LA
2023-11-01 337-895-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA LA - LLC 653C LAFAYETTE LA
2023-06-27 337-804-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA LA - LLC 653C LAFAYETTE LA
2023-01-10 337-379-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA LA - LLC 653C IOWA LA
2022-08-17 337-832-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA LA - LLC 653C STMARTINVL LA
2022-07-06 337-727-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA LA - LLC 653C PINEPRAIRI LA
2021-03-26 337-858-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA LA - LLC 653C YOUNGSVL LA
2020-10-20 337-285-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA LA - LLC 653C KAPLAN LA
2020-10-13 337-472-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA LA - LLC 653C MAMOU LA
2020-09-09 337-525-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA LA - LLC 653C DE QUINCY LA
2020-09-02 337-545-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA LA - LLC 653C CENTERVL LA
2020-08-27 337-512-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA LA - LLC 653C CARLYSS LA
2020-05-14 337-389-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA LA - LLC 653C OBERLIN LA
2019-10-16 337-294-1XXX 1000–1999Assigned TELEPORT COMMUNICATIONS AMERICA LA - LLC 653C LAFAYETTE LA
2019-04-15 337-549-1XXX 1000–1999Assigned TELEPORT COMMUNICATIONS AMERICA LA - LLC 653C LK CHARLES LA
2018-03-20 337-990-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA LA - LLC 653C LK CHARLES LA
2017-12-22 337-656-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA LA - LLC 653C LK CHARLES LA
2017-10-18 337-345-2XXX 2000–2999Assigned TELEPORT COMMUNICATIONS AMERICA LA - LLC 653C LAFAYETTE LA
2017-10-18 337-345-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA LA - LLC 653C LAFAYETTE LA
2017-07-18 337-390-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA LA - LLC 653C KINDER LA
2017-03-31 337-282-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA LA - LLC 653C GUEYDAN LA
2017-02-27 337-336-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA LA - LLC 653C VL PLATTE LA
2016-08-17 337-510-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA LA - LLC 653C SUNSET LA
2016-08-10 337-606-8XXX 8000–8999Assigned TELEPORT COMMUNICATIONS AMERICA LA - LLC 653C NEW IBERIA LA
2016-06-24 337-703-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA LA - LLC 653C LAFAYETTE LA
2016-06-22 337-520-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA LA - LLC 653C CARENCRO LA
2016-05-18 337-240-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA LA - LLC 653C LK CHARLES LA
2016-05-18 337-735-8XXX 8000–8999Assigned TELEPORT COMMUNICATIONS AMERICA LA - LLC 653C LAFAYETTE LA
2016-04-25 337-413-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA LA - LLC 653C FRANKLIN LA
2016-04-25 337-918-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA LA - LLC 653C ERATH LA
2016-01-19 337-227-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA LA - LLC 653C CHURCH PT LA
2015-10-08 337-571-0XXX 0000–0999Assigned TELEPORT COMMUNICATIONS AMERICA LA - LLC 653C LAFAYETTE LA
2015-10-08 337-571-1XXX 1000–1999Assigned TELEPORT COMMUNICATIONS AMERICA LA - LLC 653C LAFAYETTE LA
2015-10-08 337-571-2XXX 2000–2999Assigned TELEPORT COMMUNICATIONS AMERICA LA - LLC 653C LAFAYETTE LA
2015-10-08 337-571-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA LA - LLC 653C LAFAYETTE LA
2015-10-08 337-571-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA LA - LLC 653C LAFAYETTE LA
2015-10-08 337-571-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA LA - LLC 653C LAFAYETTE LA
2015-10-08 337-571-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA LA - LLC 653C LAFAYETTE LA
2015-10-08 337-571-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA LA - LLC 653C LAFAYETTE LA
2015-10-08 337-571-8XXX 8000–8999Assigned TELEPORT COMMUNICATIONS AMERICA LA - LLC 653C LAFAYETTE LA

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.