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 341
FRACTEL, LLC 51
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
2022-02-22 341-786-7XXX 7000–7999Assigned FRACTEL, LLC 965H FRNK MAIN CA
2021-09-16 341-699-9XXX 9000–9999Assigned FRACTEL, LLC 965H OKLD MN-PD CA
2021-09-15 341-899-9XXX 9000–9999Assigned FRACTEL, LLC 965H OKLD TRNID CA
2021-08-23 341-587-8XXX 8000–8999Assigned FRACTEL, LLC 965H FRNK GRNLF CA
2021-07-07 341-667-8XXX 8000–8999Assigned FRACTEL, LLC 965H OKLD FRTVL CA
2021-07-07 341-732-5XXX 5000–5999Assigned FRACTEL, LLC 965H ELSBR-PINL CA
2021-04-19 341-299-9XXX 9000–9999Assigned FRACTEL, LLC 965H OKLD TRNID CA
2021-04-19 341-388-8XXX 8000–8999Assigned FRACTEL, LLC 965H RICHMOND CA
2021-04-19 341-758-6XXX 6000–6999Assigned FRACTEL, LLC 965H OKLD FRTVL CA
2021-04-18 341-348-6XXX 6000–6999Assigned FRACTEL, LLC 965H FRNK MAIN CA
2021-04-18 341-386-3XXX 3000–3999Assigned FRACTEL, LLC 965H HAYWARD CA
2021-02-22 341-946-3XXX 3000–3999Assigned FRACTEL, LLC 965H OKLD BKLY CA
2021-02-16 341-345-6XXX 6000–6999Assigned FRACTEL, LLC 965H FRNK MAIN CA
2021-01-25 341-900-9XXX 9000–9999Assigned FRACTEL, LLC 965H CROCKETT CA
2021-01-13 341-234-5XXX 5000–5999Assigned FRACTEL, LLC 965H OKLD ALMD CA
2021-01-04 341-500-0XXX 0000–0999Assigned FRACTEL, LLC 965H ELSBR-PINL CA
2021-01-04 341-500-5XXX 5000–5999Assigned FRACTEL, LLC 965H ELSBR-PINL CA
2020-12-29 341-465-8XXX 8000–8999Assigned FRACTEL, LLC 965H FRNK MAIN CA
2020-11-14 341-900-0XXX 0000–0999Assigned FRACTEL, LLC 965H CROCKETT CA
2020-09-18 341-529-9XXX 9000–9999Assigned FRACTEL, LLC 965H FRNK MAIN CA
2020-09-17 341-300-0XXX 0000–0999Assigned FRACTEL, LLC 965H RICHMOND CA
2020-09-17 341-300-3XXX 3000–3999Assigned FRACTEL, LLC 965H RICHMOND CA
2020-09-16 341-400-0XXX 0000–0999Assigned FRACTEL, LLC 965H OKLD FRTVL CA
2020-09-16 341-400-4XXX 4000–4999Assigned FRACTEL, LLC 965H OKLD FRTVL CA
2020-09-16 341-529-3XXX 3000–3999Assigned FRACTEL, LLC 965H FRNK MAIN CA
2020-08-25 341-600-0XXX 0000–0999Assigned FRACTEL, LLC 965H ELSBR-PINL CA
2020-08-25 341-600-6XXX 6000–6999Assigned FRACTEL, LLC 965H ELSBR-PINL CA
2020-07-02 341-200-0XXX 0000–0999Assigned FRACTEL, LLC 965H HRCUL-RODE CA
2020-07-02 341-200-2XXX 2000–2999Assigned FRACTEL, LLC 965H HRCUL-RODE CA
2020-07-02 341-200-3XXX 3000–3999Assigned FRACTEL, LLC 965H HRCUL-RODE CA
2020-05-28 341-226-4XXX 4000–4999Assigned FRACTEL, LLC 965H OKLD FRTVL CA
2020-05-28 341-226-5XXX 5000–5999Assigned FRACTEL, LLC 965H OKLD FRTVL CA
2020-05-28 341-336-8XXX 8000–8999Assigned FRACTEL, LLC 965H FRNK GRNLF CA
2020-05-28 341-356-7XXX 7000–7999Assigned FRACTEL, LLC 965H FRNK MAIN CA
2020-05-28 341-356-9XXX 9000–9999Assigned FRACTEL, LLC 965H FRNK MAIN CA
2020-05-28 341-766-3XXX 3000–3999Assigned FRACTEL, LLC 965H OKLD BKLY CA
2020-05-28 341-766-6XXX 6000–6999Assigned FRACTEL, LLC 965H OKLD BKLY CA
2020-05-27 341-799-9XXX 9000–9999Assigned FRACTEL, LLC 965H RICHMOND CA
2020-01-02 341-666-6XXX 6000–6999Assigned FRACTEL, LLC 965H OKLD TRNID CA
2020-01-02 341-666-7XXX 7000–7999Assigned FRACTEL, LLC 965H OKLD TRNID CA
2019-12-03 341-222-2XXX 2000–2999Assigned FRACTEL, LLC 965H OKLD FRTVL CA
2019-12-03 341-222-4XXX 4000–4999Assigned FRACTEL, LLC 965H OKLD FRTVL CA
2019-12-03 341-444-4XXX 4000–4999Assigned FRACTEL, LLC 965H CROCKETT CA
2019-12-03 341-444-7XXX 7000–7999Assigned FRACTEL, LLC 965H CROCKETT CA
2019-12-03 341-800-0XXX 0000–0999Assigned FRACTEL, LLC 965H HAYWARD CA
2019-12-03 341-800-8XXX 8000–8999Assigned FRACTEL, LLC 965H HAYWARD CA
2019-08-21 341-333-3XXX 3000–3999Assigned FRACTEL, LLC 965H OKLD BKLY CA
2019-08-21 341-333-4XXX 4000–4999Assigned FRACTEL, LLC 965H OKLD BKLY CA
2019-08-21 341-333-5XXX 5000–5999Assigned FRACTEL, LLC 965H OKLD BKLY CA
2019-07-22 341-999-8XXX 8000–8999Assigned FRACTEL, LLC 965H RICHMOND CA

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.