NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

2 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, last 30 days — NPA 781
NEW CINGULAR WIRELESS PCS, LLC - DC 1
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 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
2014-11-21 781-622-9XXX 9000–9999Assigned ONVOY, LLC - MA 892D WALTHAM MA
2014-11-21 781-906-1XXX 1000–1999Assigned ONVOY, LLC - MA 892D WALTHAM MA
2014-11-14 781-957-8XXX 8000–8999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 MEDFORD MA
2014-11-13 781-552-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J BURLINGTON MA
2014-11-11 781-385-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J HINGHAM MA
2014-11-11 781-523-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 WHITMAN MA
2014-11-10 781-541-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J LEXINGTON MA
2014-10-29 781-805-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J RANDOLPH MA
2014-10-29 781-851-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J MALDEN MA
2014-10-27 781-563-5XXX 5000–5999Assigned ONVOY, LLC - MA 892D BRYANTVL MA
2014-10-27 781-563-6XXX 6000–6999Assigned ONVOY, LLC - MA 892D BRYANTVL MA
2014-10-24 781-536-7XXX 7000–7999Assigned ONVOY, LLC - MA 892D MARSHFIELD MA
2014-10-24 781-536-9XXX 9000–9999Assigned ONVOY, LLC - MA 892D MARSHFIELD MA
2014-10-16 781-469-8XXX 8000–8999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 LYNN MA
2014-10-16 781-469-9XXX 9000–9999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 LYNN MA
2014-10-16 781-606-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MELROSE MA
2014-10-03 781-527-2XXX 2000–2999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 COHASSET MA
2014-10-03 781-691-2XXX 2000–2999Assigned ONVOY, LLC - MA 892D LYNN MA
2014-10-03 781-731-0XXX 0000–0999Assigned ONVOY, LLC - MA 892D LYNN MA
2014-10-03 781-951-5XXX 5000–5999Assigned ONVOY, LLC - MA 892D REVERE MA
2014-10-03 781-951-6XXX 6000–6999Assigned ONVOY, LLC - MA 892D REVERE MA
2014-10-02 781-859-0XXX 0000–0999Assigned ONVOY, LLC - MA 892D ARLINGTON MA
2014-10-02 781-859-4XXX 4000–4999Assigned ONVOY, LLC - MA 892D ARLINGTON MA
2014-10-02 781-905-8XXX 8000–8999Assigned ONVOY, LLC - MA 892D MALDEN MA
2014-10-02 781-905-9XXX 9000–9999Assigned ONVOY, LLC - MA 892D MALDEN MA
2014-10-01 781-800-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - MA 990E NEEDHAM MA
2014-10-01 781-800-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - MA 990E NEEDHAM MA
2014-10-01 781-800-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - MA 990E NEEDHAM MA
2014-10-01 781-800-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - MA 990E NEEDHAM MA
2014-10-01 781-800-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - MA 990E NEEDHAM MA
2014-10-01 781-825-1XXX 1000–1999Assigned ONVOY, LLC - MA 892D BURLINGTON MA
2014-10-01 781-825-2XXX 2000–2999Assigned ONVOY, LLC - MA 892D BURLINGTON MA
2014-09-26 781-491-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WOBURN MA
2014-09-23 781-857-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 ROCKLAND MA
2014-09-19 781-488-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 ARLINGTON MA
2014-09-19 781-813-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J SAUGUS MA
2014-09-15 781-600-1XXX 1000–1999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 BRAINTREE MA
2014-09-15 781-600-2XXX 2000–2999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 BRAINTREE MA
2014-09-15 781-600-3XXX 3000–3999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 BRAINTREE MA
2014-09-15 781-600-4XXX 4000–4999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 BRAINTREE MA
2014-09-15 781-600-5XXX 5000–5999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 BRAINTREE MA
2014-09-15 781-600-6XXX 6000–6999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 BRAINTREE MA
2014-09-15 781-600-7XXX 7000–7999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 BRAINTREE MA
2014-09-15 781-600-8XXX 8000–8999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 BRAINTREE MA
2014-09-15 781-600-9XXX 9000–9999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 BRAINTREE MA
2014-09-11 781-366-8XXX 8000–8999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 DEDHAM MA
2014-09-11 781-513-2XXX 2000–2999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 LYNN MA
2014-09-11 781-833-0XXX 0000–0999Assigned PAETEC ITEL, LLC 829J WALTHAM MA
2014-09-11 781-975-3XXX 3000–3999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 STOUGHTON MA
2014-09-10 781-392-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WALTHAM MA

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.