NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

13 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, last 30 days — NPA 984
LEVEL 3 COMMUNICATIONS, LLC - NC 13
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
2026-09-15 984-419-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 CHAPELHILL NC
2026-09-15 984-419-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 CHAPELHILL NC
2026-09-15 984-419-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 CHAPELHILL NC
2026-09-15 984-421-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 CHAPELHILL NC
2026-09-15 984-421-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 CHAPELHILL NC
2026-09-15 984-421-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 CHAPELHILL NC
2026-09-15 984-421-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 CHAPELHILL NC
2026-09-15 984-421-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 CHAPELHILL NC
2026-09-15 984-421-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 CHAPELHILL NC
2026-09-15 984-421-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 CHAPELHILL NC
2026-09-15 984-421-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 CHAPELHILL NC
2026-09-15 984-421-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 CHAPELHILL NC
2026-09-15 984-421-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 CHAPELHILL NC
2024-04-05 984-768-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 FUQUAYVRIN NC
2023-09-06 984-343-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 APEX NC
2022-02-02 984-284-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 RALEIGH NC
2021-10-05 984-290-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 MEBANE NC
2021-08-25 984-920-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 RALEIGH NC
2021-05-26 984-810-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 RALEIGH NC
2021-04-14 984-268-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 RALEIGH NC
2021-03-17 984-268-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 RALEIGH NC
2021-01-12 984-298-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 RALEIGH NC
2020-10-19 984-259-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 DURHAM NC
2020-09-17 984-246-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 APEX NC
2020-06-25 984-250-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 DURHAM NC
2020-04-24 984-240-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 MOUNTOLIVE NC
2019-12-27 984-251-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 WAKEFOREST NC
2019-10-23 984-253-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 HILLSBORGH NC
2019-08-07 984-243-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 DURHAM NC
2019-04-09 984-246-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 APEX NC
2019-04-02 984-569-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 DURHAM NC
2019-02-26 984-245-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 DURHAM NC
2018-10-30 984-238-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 RALEIGH NC
2018-10-03 984-245-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 DURHAM NC
2018-10-03 984-245-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 DURHAM NC
2018-08-02 984-355-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 ANGIER NC
2018-06-01 984-349-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 RALEIGH NC
2017-11-08 984-287-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 DURHAM NC
2017-11-01 984-206-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 RAL DUR AP NC
2017-08-30 984-328-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 RALEIGH NC
2017-07-11 984-569-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 DURHAM NC
2017-06-06 984-569-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 DURHAM NC
2017-05-05 984-239-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 RALEIGH NC
2017-01-24 984-237-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 WAKEFOREST NC
2017-01-11 984-349-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 RALEIGH NC
2016-10-28 984-260-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 DURHAM NC
2016-07-29 984-260-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 DURHAM NC
2016-07-19 984-960-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 RALEIGH NC
2016-06-22 984-208-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 CARY NC
2016-06-06 984-220-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 RALEIGH NC

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.