NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

18 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 878
ONVOY, LLC - PA 10
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 4
MCIMETRO ACCESS TRANSMISSION SERVICES LLC 3
BANDWIDTH.COM CLEC, LLC - PA 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
2020-06-18 878-879-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 NEWKNSNGTN PA
2020-06-11 878-309-7XXX 7000–7999Assigned AERIAL COMMUNICATIONS, INC. 6701 GREENSBURG PA
2020-06-11 878-309-8XXX 8000–8999Assigned AERIAL COMMUNICATIONS, INC. 6701 GREENSBURG PA
2020-05-29 878-348-6XXX 6000–6999Assigned FRACTEL, LLC 965H BEAVER FLS PA
2020-05-29 878-377-7XXX 7000–7999Assigned FRACTEL, LLC 965H SHARPSVL PA
2020-05-29 878-677-7XXX 7000–7999Assigned FRACTEL, LLC 965H NEWWLMNGTN PA
2020-05-29 878-688-8XXX 8000–8999Assigned FRACTEL, LLC 965H HOMER CITY PA
2020-05-26 878-217-0XXX 0000–0999Assigned ONVOY, LLC - PA 547E CRIDERSCOR PA
2020-05-19 878-500-5XXX 5000–5999Assigned FRACTEL, LLC 965H FORD CITY PA
2020-05-19 878-877-7XXX 7000–7999Assigned FRACTEL, LLC 965H BUTLER PA
2020-05-19 878-900-9XXX 9000–9999Assigned FRACTEL, LLC 965H EPALESTINE PA
2020-05-14 878-880-1XXX 1000–1999Assigned ONVOY, LLC - PA 547E WASHINGTON PA
2020-05-14 878-880-2XXX 2000–2999Assigned ONVOY, LLC - PA 547E WASHINGTON PA
2020-05-14 878-880-3XXX 3000–3999Assigned ONVOY, LLC - PA 547E WASHINGTON PA
2020-05-07 878-678-7XXX 7000–7999Assigned ONVOY, LLC - PA 547E BADEN PA
2020-05-07 878-678-8XXX 8000–8999Assigned ONVOY, LLC - PA 547E BADEN PA
2020-05-01 878-879-6XXX 6000–6999Assigned PEERLESS NETWORK OF PENNSYLVANIA, LLC - PA 967E NEWKNSNGTN PA
2020-03-27 878-678-4XXX 4000–4999Assigned CORE COMMUNICATIONS, INC. - PA 3806 BADEN PA
2020-02-24 878-229-7XXX 7000–7999Assigned FULL SERVICE NETWORK LP 7820 WASHINGTON PA
2020-02-24 878-229-8XXX 8000–8999Assigned FULL SERVICE NETWORK LP 7820 WASHINGTON PA
2020-02-24 878-229-9XXX 9000–9999Assigned FULL SERVICE NETWORK LP 7820 WASHINGTON PA
2020-02-12 878-768-7XXX 7000–7999Assigned ONVOY, LLC - PA 547E VOLANT PA
2020-02-10 878-778-8XXX 8000–8999Assigned ONVOY, LLC - PA 547E BLACKTOWN PA
2020-02-10 878-788-8XXX 8000–8999Assigned ONVOY, LLC - PA 547E FOXBURG PA
2020-02-10 878-789-8XXX 8000–8999Assigned ONVOY, LLC - PA 547E PETROLIA PA
2020-02-07 878-777-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - PA 002F DERRY PA
2020-01-25 878-877-8XXX 8000–8999Assigned ONVOY, LLC - PA 547E BUTLER PA
2020-01-17 878-224-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FORD CITY PA
2020-01-08 878-212-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WASHINGTON PA
2019-12-12 878-223-0XXX 0000–0999Assigned VONAGE AMERICA LLC 197D UNIONTOWN PA
2019-12-09 878-213-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 PTTSBGZON1 PA
2019-12-09 878-600-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 PTTSBGZON1 PA
2019-12-09 878-600-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 PTTSBGZON1 PA
2019-12-09 878-600-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 PTTSBGZON1 PA
2019-12-09 878-600-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 PTTSBGZON1 PA
2019-12-09 878-600-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 PTTSBGZON1 PA
2019-12-09 878-600-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 PTTSBGZON1 PA
2019-12-09 878-600-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 PTTSBGZON1 PA
2019-12-09 878-600-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 PTTSBGZON1 PA
2019-12-09 878-787-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 PTTSBGZON1 PA
2019-12-09 878-787-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 PTTSBGZON1 PA
2019-12-09 878-787-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 PTTSBGZON1 PA
2019-12-09 878-787-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 PTTSBGZON1 PA
2019-12-09 878-787-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 PTTSBGZON1 PA
2019-11-14 878-879-9XXX 9000–9999Assigned AERIAL COMMUNICATIONS, INC. 6701 NEWKNSNGTN PA
2019-11-08 878-223-2XXX 2000–2999Assigned CSC WIRELESS, LLC 425J UNIONTOWN PA
2019-10-21 878-787-6XXX 6000–6999Assigned ONVOY, LLC - PA 547E PTTSBGZON1 PA
2019-10-21 878-787-7XXX 7000–7999Assigned ONVOY, LLC - PA 547E PTTSBGZON1 PA
2019-10-02 878-213-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - PA 4007 PTTSBGZON1 PA
2019-09-25 878-439-6XXX 6000–6999Assigned METROPCS, INC. 5562 ROCHESTER PA

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.