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 580
TELEPORT COMMUNICATIONS AMERICA OK - 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
2024-10-24 580-576-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA OK - LLC 530C PONCA CITY OK
2023-10-27 580-784-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA OK - LLC 530C FORTTOWSON OK
2023-09-08 580-407-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA OK - LLC 530C IDABEL OK
2022-11-17 580-201-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA OK - LLC 530C GRANITE OK
2022-02-07 580-499-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA OK - LLC 530C MANGUM OK
2021-08-18 580-943-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA OK - LLC 530C DUNCAN OK
2021-04-15 580-642-9XXX 9000–9999Assigned TELEPORT COMMUNICATIONS AMERICA OK - LLC 530C DURANT OK
2021-04-15 580-898-0XXX 0000–0999Assigned TELEPORT COMMUNICATIONS AMERICA OK - LLC 530C DURANT OK
2021-04-15 580-898-1XXX 1000–1999Assigned TELEPORT COMMUNICATIONS AMERICA OK - LLC 530C DURANT OK
2021-04-15 580-898-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA OK - LLC 530C DURANT OK
2021-04-15 580-898-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA OK - LLC 530C DURANT OK
2021-04-13 580-642-1XXX 1000–1999Assigned TELEPORT COMMUNICATIONS AMERICA OK - LLC 530C DURANT OK
2021-04-13 580-642-2XXX 2000–2999Assigned TELEPORT COMMUNICATIONS AMERICA OK - LLC 530C DURANT OK
2021-04-13 580-642-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA OK - LLC 530C DURANT OK
2021-04-01 580-642-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA OK - LLC 530C DURANT OK
2021-03-30 580-642-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA OK - LLC 530C DURANT OK
2020-10-26 580-720-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA OK - LLC 530C ELGIN OK
2020-09-29 580-642-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA OK - LLC 530C DURANT OK
2020-09-29 580-642-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA OK - LLC 530C DURANT OK
2020-09-29 580-642-8XXX 8000–8999Assigned TELEPORT COMMUNICATIONS AMERICA OK - LLC 530C DURANT OK
2020-08-25 580-660-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA OK - LLC 530C CORDELL OK
2020-08-13 580-671-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA OK - LLC 530C MT VIEW OK
2020-07-16 580-624-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA OK - LLC 530C KINGSTON OK
2020-07-16 580-669-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA OK - LLC 530C GLENCOE OK
2020-02-21 580-741-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA OK - LLC 530C MEDFORD OK
2019-06-21 580-282-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA OK - LLC 530C MARIETTA OK
2019-06-05 580-599-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA OK - LLC 530C ENID OK
2019-04-24 580-951-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA OK - LLC 530C LAWTON OK
2019-01-21 580-448-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA OK - LLC 530C SARKNSASCY OK
2018-10-02 580-961-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA OK - LLC 530C STRINGTOWN OK
2018-08-17 580-758-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA OK - LLC 530C WAUKOMIS OK
2018-04-30 580-476-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA OK - LLC 530C RUSH SPG OK
2017-10-02 580-722-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA OK - LLC 530C NEWKIRK OK
2017-09-25 580-204-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA OK - LLC 530C BOSWELL OK
2017-08-02 580-412-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA OK - LLC 530C FAIRVIEW OK
2017-07-25 580-971-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA OK - LLC 530C SNYDER OK
2017-06-21 580-232-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA OK - LLC 530C CACHE OK
2017-06-21 580-313-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA OK - LLC 530C WAURIKA OK
2017-06-21 580-403-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA OK - LLC 530C STRATFORD OK
2017-06-21 580-662-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA OK - LLC 530C RINGLING OK
2017-06-21 580-686-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA OK - LLC 530C KONAWA OK
2017-06-12 580-896-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA OK - LLC 530C COALGATE OK
2017-01-17 580-209-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA OK - LLC 530C ANTLERS OK
2016-12-19 580-769-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA OK - LLC 530C SAYRE OK
2016-11-08 580-264-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA OK - LLC 530C HEALDTON OK
2016-11-08 580-682-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA OK - LLC 530C HOBART OK
2016-11-08 580-997-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA OK - LLC 530C CHEROKEE OK
2016-07-13 580-495-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA OK - LLC 530C ADA OK
2016-05-17 580-219-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA OK - LLC 530C TISHOMINGO OK
2016-03-14 580-609-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA OK - LLC 530C ALVA OK

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.