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
2021-10-18 878-978-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H PTTSBGZON1 PA
2021-10-11 878-242-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - PA 002F NEW CASTLE PA
2021-10-11 878-242-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - PA 002F NEW CASTLE PA
2021-10-05 878-237-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H BEAVER FLS PA
2021-10-05 878-688-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - PA 002F HOMER CITY PA
2021-10-01 878-259-0XXX 0000–0999Assigned COMMIO, LLC 939H EXPORT PA
2021-10-01 878-259-1XXX 1000–1999Assigned COMMIO, LLC 939H EXPORT PA
2021-10-01 878-259-2XXX 2000–2999Assigned COMMIO, LLC 939H EXPORT PA
2021-09-29 878-220-6XXX 6000–6999Assigned COMMIO, LLC 939H EXPORT PA
2021-09-24 878-232-9XXX 9000–9999Assigned PEERLESS NETWORK OF PENNSYLVANIA, LLC - PA 967E ELLWOOD CY PA
2021-09-24 878-895-9XXX 9000–9999Assigned PEERLESS NETWORK OF PENNSYLVANIA, LLC - PA 967E UNIONTOWN PA
2021-09-22 878-243-2XXX 2000–2999Assigned METROPCS, INC. 5562 WASHINGTON PA
2021-09-22 878-252-8XXX 8000–8999Assigned METROPCS, INC. 5562 CRIDERSCOR PA
2021-09-22 878-285-7XXX 7000–7999Assigned METROPCS, INC. 5562 MTPLEASANT PA
2021-09-22 878-422-2XXX 2000–2999Assigned METROPCS, INC. 5562 KITTANNING PA
2021-09-20 878-822-2XXX 2000–2999Assigned SKYE TELECOM LLC DBA SKYETEL 622J BUTLER PA
2021-09-13 878-231-7XXX 7000–7999Assigned COMMIO, LLC 939H WEXFORD PA
2021-09-13 878-231-8XXX 8000–8999Assigned COMMIO, LLC 939H WEXFORD PA
2021-09-13 878-231-9XXX 9000–9999Assigned COMMIO, LLC 939H WEXFORD PA
2021-09-08 878-529-3XXX 3000–3999Assigned FRACTEL, LLC 965H BROWNSVL PA
2021-09-08 878-529-9XXX 9000–9999Assigned FRACTEL, LLC 965H BROWNSVL PA
2021-09-07 878-884-1XXX 1000–1999Assigned AERIAL COMMUNICATIONS, INC. 6701 GREENSBURG PA
2021-09-07 878-884-6XXX 6000–6999Assigned AERIAL COMMUNICATIONS, INC. 6701 GREENSBURG PA
2021-08-23 878-599-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - PA 7315 PTGSBNZN14 PA
2021-08-18 878-356-7XXX 7000–7999Assigned FRACTEL, LLC 965H WESTNEWTON PA
2021-08-18 878-356-9XXX 9000–9999Assigned FRACTEL, LLC 965H WESTNEWTON PA
2021-08-05 878-244-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 SLIPPERYRK PA
2021-08-04 878-230-0XXX 0000–0999Assigned COMMIO, LLC 939H PTTSBGZON4 PA
2021-08-04 878-230-1XXX 1000–1999Assigned COMMIO, LLC 939H PTTSBGZON4 PA
2021-08-04 878-230-2XXX 2000–2999Assigned COMMIO, LLC 939H PTTSBGZON4 PA
2021-08-04 878-230-3XXX 3000–3999Assigned COMMIO, LLC 939H PTTSBGZON4 PA
2021-07-26 878-285-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - PA 002F MTPLEASANT PA
2021-07-22 878-345-6XXX 6000–6999Assigned FRACTEL, LLC 965H PTGSBNZN20 PA
2021-07-22 878-978-2XXX 2000–2999Assigned ONVOY, LLC - PA 547E PTTSBGZON1 PA
2021-07-22 878-978-3XXX 3000–3999Assigned ONVOY, LLC - PA 547E PTTSBGZON1 PA
2021-07-22 878-978-4XXX 4000–4999Assigned ONVOY, LLC - PA 547E PTTSBGZON1 PA
2021-07-22 878-978-5XXX 5000–5999Assigned ONVOY, LLC - PA 547E PTTSBGZON1 PA
2021-07-21 878-241-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - PA 002F SMITHSFRRY PA
2021-07-14 878-235-4XXX 4000–4999Assigned TON80 COMMUNICATIONS, LLC 516J ROCHESTER PA
2021-07-07 878-322-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J DONORA PA
2021-07-07 878-884-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J GREENSBURG PA
2021-07-01 878-379-3XXX 3000–3999Assigned TON80 COMMUNICATIONS, LLC 516J WAYNESBURG PA
2021-06-29 878-220-8XXX 8000–8999Assigned AERIAL COMMUNICATIONS, INC. 6701 EXPORT PA
2021-06-29 878-220-9XXX 9000–9999Assigned AERIAL COMMUNICATIONS, INC. 6701 EXPORT PA
2021-06-29 878-230-7XXX 7000–7999Assigned PEERLESS NETWORK OF PENNSYLVANIA, LLC - PA 967E PTTSBGZON4 PA
2021-06-29 878-236-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 CRIDERSCOR PA
2021-06-29 878-236-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 CRIDERSCOR PA
2021-06-29 878-236-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 CRIDERSCOR PA
2021-06-29 878-236-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 CRIDERSCOR PA
2021-06-27 878-251-9XXX 9000–9999Assigned PEERLESS NETWORK OF PENNSYLVANIA, LLC - PA 967E BLACK LICK 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.