NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

4 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 978
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 2
EXIANT COMMUNICATIONS LLC 1
BANDWIDTH.COM CLEC, LLC - 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
2017-09-08 978-572-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J NEWBURYPT MA
2017-09-08 978-800-8XXX 8000–8999Assigned ONVOY, LLC - MA 892D LITTLETON MA
2017-08-31 978-230-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 LEOMINSTER MA
2017-08-24 978-949-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MANCHESTER MA
2017-08-21 978-773-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 ANDOVER MA
2017-08-14 978-449-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 GROTON MA
2017-07-21 978-956-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 FITCHBURG MA
2017-07-18 978-306-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - MA 990E SALEM MA
2017-07-11 978-916-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PEABODY MA
2017-07-11 978-916-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PEABODY MA
2017-06-28 978-918-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J LAWRENCE MA
2017-06-12 978-644-8XXX 8000–8999Assigned IP HORIZON LLC 515J GEORGETOWN MA
2017-06-12 978-708-9XXX 9000–9999Assigned IP HORIZON LLC 515J GROTON MA
2017-06-12 978-850-0XXX 0000–0999Assigned IP HORIZON LLC 515J WESTFORD MA
2017-06-12 978-875-8XXX 8000–8999Assigned IP HORIZON LLC 515J HUDSON MA
2017-06-12 978-962-0XXX 0000–0999Assigned IP HORIZON LLC 515J LEOMINSTER MA
2017-06-08 978-827-9XXX 9000–9999Assigned IP HORIZON LLC 515J ASHBURNHAM MA
2017-06-06 978-405-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 CONCORD MA
2017-05-25 978-949-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MANCHESTER MA
2017-05-22 978-971-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 HAVERHILL MA
2017-05-19 978-854-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PEABODY MA
2017-05-19 978-854-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PEABODY MA
2017-05-01 978-560-8XXX 8000–8999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J DANVERS MA
2017-04-28 978-431-9XXX 9000–9999Assigned ONVOY, LLC - MA 892D LITTLETON MA
2017-04-28 978-955-7XXX 7000–7999Assigned ONVOY, LLC - MA 892D LOWELL MA
2017-04-27 978-252-8XXX 8000–8999Assigned TELNYX LLC 073H ASHBURNHAM MA
2017-04-27 978-321-9XXX 9000–9999Assigned TELNYX LLC 073H WINCHENDON MA
2017-04-27 978-484-8XXX 8000–8999Assigned TELNYX LLC 073H ROWLEY MA
2017-04-27 978-541-8XXX 8000–8999Assigned TELNYX LLC 073H ATHOL MA
2017-04-27 978-575-9XXX 9000–9999Assigned TELNYX LLC 073H ATHOLFKLN MA
2017-04-27 978-592-1XXX 1000–1999Assigned TELNYX LLC 073H BERLIN MA
2017-04-27 978-613-5XXX 5000–5999Assigned TELNYX LLC 073H PETERSHAM MA
2017-04-27 978-672-8XXX 8000–8999Assigned TELNYX LLC 073H PRINCETON MA
2017-04-27 978-693-0XXX 0000–0999Assigned TELNYX LLC 073H W NEWBURY MA
2017-04-27 978-755-0XXX 0000–0999Assigned TELNYX LLC 073H TOWNSEND MA
2017-04-27 978-768-2XXX 2000–2999Assigned TELNYX LLC 073H ESSEX MA
2017-04-27 978-813-8XXX 8000–8999Assigned TELNYX LLC 073H SHIRLEY MA
2017-04-27 978-874-8XXX 8000–8999Assigned TELNYX LLC 073H WESTMINSTR MA
2017-04-24 978-396-8XXX 8000–8999Assigned TELNYX LLC 073H NO READING MA
2017-04-24 978-581-5XXX 5000–5999Assigned TELNYX LLC 073H ORANGE MA
2017-04-24 978-636-9XXX 9000–9999Assigned TELNYX LLC 073H BARRE MA
2017-04-24 978-765-0XXX 0000–0999Assigned TELNYX LLC 073H CLINTON MA
2017-04-24 978-779-4XXX 4000–4999Assigned TELNYX LLC 073H BOLTON MA
2017-04-24 978-861-0XXX 0000–0999Assigned TELNYX LLC 073H TOPSFIELD MA
2017-04-24 978-926-9XXX 9000–9999Assigned TELNYX LLC 073H TYNGSBORO MA
2017-04-21 978-286-4XXX 4000–4999Assigned TELNYX LLC 073H STERLING MA
2017-04-21 978-517-6XXX 6000–6999Assigned TELNYX LLC 073H AMESBURY MA
2017-04-21 978-653-8XXX 8000–8999Assigned TELNYX LLC 073H HAMILTON MA
2017-04-18 978-293-8XXX 8000–8999Assigned TELNYX LLC 073H HUDSON MA
2017-04-18 978-350-9XXX 9000–9999Assigned TELNYX LLC 073H TEMPLETON 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.