NumberResearchRecent thousands-block assignments
18 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026
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
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
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2026-09-18 | 878-242-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 6392 | NEW CASTLE | PA |
| 2026-09-17 | 878-270-4XXX | 4000–4999 | Assigned | ONVOY, LLC - PA | 547E | CRIDERSCOR | PA |
| 2026-09-14 | 878-205-4XXX | 4000–4999 | Assigned | ONVOY, LLC - PA | 547E | CONNELLSVL | PA |
| 2026-09-09 | 878-299-2XXX | 2000–2999 | Assigned | ONVOY, LLC - PA | 547E | INDIANA | PA |
| 2026-09-09 | 878-299-3XXX | 3000–3999 | Assigned | ONVOY, LLC - PA | 547E | INDIANA | PA |
| 2026-09-09 | 878-303-8XXX | 8000–8999 | Assigned | ONVOY, LLC - PA | 547E | BEAVER FLS | PA |
| 2026-09-09 | 878-305-4XXX | 4000–4999 | Assigned | ONVOY, LLC - PA | 547E | ALIQUIPPA | PA |
| 2026-09-09 | 878-305-5XXX | 5000–5999 | Assigned | ONVOY, LLC - PA | 547E | ALIQUIPPA | PA |
| 2026-09-03 | 878-307-5XXX | 5000–5999 | Assigned | ONVOY, LLC - PA | 547E | ROCHESTER | PA |
| 2026-09-02 | 878-305-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - PA | 002F | ALIQUIPPA | PA |
| 2026-09-01 | 878-379-2XXX | 2000–2999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | WAYNESBURG | PA |
| 2026-08-27 | 878-219-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | FARMINGTON | PA |
| 2026-08-27 | 878-275-5XXX | 5000–5999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | AVONMORE | PA |
| 2026-08-27 | 878-290-4XXX | 4000–4999 | Assigned | ONVOY, LLC - PA | 547E | PTTSBGZON7 | PA |
| 2026-08-27 | 878-822-4XXX | 4000–4999 | Assigned | ONVOY, LLC - PA | 547E | BUTLER | PA |
| 2026-08-25 | 878-307-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 6392 | ROCHESTER | PA |
| 2026-08-25 | 878-307-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 6392 | ROCHESTER | PA |
| 2026-08-25 | 878-307-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 6392 | ROCHESTER | PA |
| 2026-08-20 | 878-305-7XXX | 7000–7999 | Assigned | OPENTACT INC. | 824J | ALIQUIPPA | PA |
| 2026-08-13 | 878-307-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 6392 | ROCHESTER | PA |
| 2026-08-13 | 878-545-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 6392 | WASHINGTON | PA |
| 2026-08-13 | 878-545-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 6392 | WASHINGTON | PA |
| 2026-08-13 | 878-545-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 6392 | WASHINGTON | PA |
| 2026-08-13 | 878-545-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 6392 | WASHINGTON | PA |
| 2026-08-13 | 878-545-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 6392 | WASHINGTON | PA |
| 2026-08-10 | 878-522-2XXX | 2000–2999 | Assigned | EXIANT COMMUNICATIONS LLC | 114J | YOUNGWOOD | PA |
| 2026-08-06 | 878-274-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 6392 | SLIPPERYRK | PA |
| 2026-08-05 | 878-299-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | INDIANA | PA |
| 2026-08-03 | 878-272-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | SPRINGDALE | PA |
| 2026-08-03 | 878-307-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | ROCHESTER | PA |
| 2026-08-03 | 878-307-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | ROCHESTER | PA |
| 2026-08-03 | 878-379-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 6392 | WAYNESBURG | PA |
| 2026-07-30 | 878-305-2XXX | 2000–2999 | Assigned | ONVOY, LLC - PA | 547E | ALIQUIPPA | PA |
| 2026-07-22 | 878-545-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | WASHINGTON | PA |
| 2026-07-21 | 878-270-3XXX | 3000–3999 | Assigned | ONVOY, LLC - PA | 547E | CRIDERSCOR | PA |
| 2026-07-06 | 878-221-1XXX | 1000–1999 | Assigned | TERRA NOVA TELECOM INC. | 145J | BUTLER | PA |
| 2026-06-24 | 878-422-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | KITTANNING | PA |
| 2026-06-18 | 878-298-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | GREENSBURG | PA |
| 2026-06-18 | 878-298-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | GREENSBURG | PA |
| 2026-06-12 | 878-272-8XXX | 8000–8999 | Assigned | PEERLESS NETWORK OF PENNSYLVANIA, LLC - PA | 967E | SPRINGDALE | PA |
| 2026-05-29 | 878-837-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 6392 | BENTLEYVL | PA |
| 2026-05-22 | 878-305-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | ALIQUIPPA | PA |
| 2026-05-21 | 878-298-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | GREENSBURG | PA |
| 2026-05-21 | 878-298-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | GREENSBURG | PA |
| 2026-05-14 | 878-307-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 6392 | ROCHESTER | PA |
| 2026-05-14 | 878-307-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 6392 | ROCHESTER | PA |
| 2026-05-14 | 878-545-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 6392 | WASHINGTON | PA |
| 2026-05-14 | 878-545-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 6392 | WASHINGTON | PA |
| 2026-05-14 | 878-545-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 6392 | WASHINGTON | PA |
| 2026-05-06 | 878-287-9XXX | 9000–9999 | Assigned | ONVOY, LLC - PA | 547E | EVANS CITY | PA |
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.