NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

2 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 339
NEW CINGULAR WIRELESS PCS, LLC - DC 1
EXIANT COMMUNICATIONS LLC 1
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
2021-11-02 339-399-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H SHARON MA
2021-10-29 339-345-3XXX 3000–3999Assigned ONVOY, LLC - MA 892D MARBLEHEAD MA
2021-10-29 339-345-4XXX 4000–4999Assigned ONVOY, LLC - MA 892D MARBLEHEAD MA
2021-10-29 339-365-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H BRYANTVL MA
2021-10-29 339-365-9XXX 9000–9999Assigned ONVOY, LLC - MA 892D BRYANTVL MA
2021-10-29 339-800-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H ARLINGTON MA
2021-10-29 339-800-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H ARLINGTON MA
2021-10-21 339-232-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H DUXBURY MA
2021-10-21 339-232-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H DUXBURY MA
2021-10-21 339-565-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H LINCOLN MA
2021-10-21 339-565-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H LINCOLN MA
2021-10-19 339-228-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H LYNN MA
2021-10-19 339-228-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H LYNN MA
2021-10-19 339-228-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H LYNN MA
2021-10-19 339-228-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H LYNN MA
2021-10-18 339-399-4XXX 4000–4999Assigned ONVOY, LLC - MA 892D SHARON MA
2021-10-18 339-399-5XXX 5000–5999Assigned ONVOY, LLC - MA 892D SHARON MA
2021-10-13 339-240-4XXX 4000–4999Assigned LIGHTPATH OF NEW ENGLAND 814J BURLINGTON MA
2021-10-06 339-235-1XXX 1000–1999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 BRAINTREE MA
2021-09-13 339-545-7XXX 7000–7999Assigned COMMIO, LLC 939H MEDFORD MA
2021-08-18 339-231-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J SAUGUS MA
2021-08-18 339-231-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J SAUGUS MA
2021-08-17 339-365-0XXX 0000–0999Assigned COMCAST IP PHONE, LLC 318J BRYANTVL MA
2021-08-17 339-365-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J BRYANTVL MA
2021-08-11 339-228-8XXX 8000–8999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 LYNN MA
2021-08-11 339-228-9XXX 9000–9999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 LYNN MA
2021-08-11 339-399-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H SHARON MA
2021-08-10 339-345-6XXX 6000–6999Assigned FRACTEL, LLC 965H MARBLEHEAD MA
2021-08-04 339-226-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J REVERE MA
2021-08-04 339-226-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J REVERE MA
2021-08-04 339-365-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H BRYANTVL MA
2021-08-03 339-226-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H REVERE MA
2021-07-30 339-500-1XXX 1000–1999Assigned COMMIO, LLC 939H LYNN MA
2021-07-30 339-500-2XXX 2000–2999Assigned COMMIO, LLC 939H LYNN MA
2021-07-30 339-500-4XXX 4000–4999Assigned COMMIO, LLC 939H LYNN MA
2021-07-30 339-500-9XXX 9000–9999Assigned COMMIO, LLC 939H LYNN MA
2021-07-29 339-529-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H WHITMAN MA
2021-07-23 339-329-1XXX 1000–1999Assigned ONVOY, LLC - MA 892D MARBLEHEAD MA
2021-07-23 339-329-9XXX 9000–9999Assigned ONVOY, LLC - MA 892D MARBLEHEAD MA
2021-06-11 339-232-2XXX 2000–2999Assigned ONVOY, LLC - MA 892D DUXBURY MA
2021-06-11 339-232-3XXX 3000–3999Assigned ONVOY, LLC - MA 892D DUXBURY MA
2021-06-11 339-300-8XXX 8000–8999Assigned ONVOY, LLC - MA 892D COHASSET MA
2021-06-11 339-300-9XXX 9000–9999Assigned ONVOY, LLC - MA 892D COHASSET MA
2021-06-11 339-329-6XXX 6000–6999Assigned ONVOY, LLC - MA 892D MARBLEHEAD MA
2021-06-11 339-329-7XXX 7000–7999Assigned ONVOY, LLC - MA 892D MARBLEHEAD MA
2021-06-11 339-365-3XXX 3000–3999Assigned ONVOY, LLC - MA 892D BRYANTVL MA
2021-06-11 339-365-4XXX 4000–4999Assigned ONVOY, LLC - MA 892D BRYANTVL MA
2021-06-11 339-365-5XXX 5000–5999Assigned ONVOY, LLC - MA 892D BRYANTVL MA
2021-06-11 339-365-6XXX 6000–6999Assigned ONVOY, LLC - MA 892D BRYANTVL MA
2021-06-11 339-400-5XXX 5000–5999Assigned ONVOY, LLC - MA 892D SAUGUS MA

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.