NumberResearchRecent thousands-block assignments
18 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/20/2026
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 |
|---|---|---|---|---|---|---|---|
| 2016-06-20 | 878-645-8XXX | 8000–8999 | Assigned | PEERLESS NETWORK OF PENNSYLVANIA, LLC - PA | 967E | GREENSBURG | PA |
| 2016-06-03 | 878-271-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 6392 | BUTLER | PA |
| 2016-05-24 | 878-999-6XXX | 6000–6999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | PTTSBGZON1 | PA |
| 2016-05-19 | 878-208-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 6392 | CRIDERSCOR | PA |
| 2016-05-03 | 878-205-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | CONNELLSVL | PA |
| 2016-05-03 | 878-228-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | UNIONTOWN | PA |
| 2016-05-03 | 878-271-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | BUTLER | PA |
| 2016-04-26 | 878-668-1XXX | 1000–1999 | Assigned | HD CARRIER LLC | 321J | ENONVALLEY | PA |
| 2016-04-26 | 878-668-2XXX | 2000–2999 | Assigned | HD CARRIER LLC | 321J | ENONVALLEY | PA |
| 2016-04-26 | 878-668-3XXX | 3000–3999 | Assigned | HD CARRIER LLC | 321J | ENONVALLEY | PA |
| 2016-04-26 | 878-668-4XXX | 4000–4999 | Assigned | HD CARRIER LLC | 321J | ENONVALLEY | PA |
| 2016-04-26 | 878-668-5XXX | 5000–5999 | Assigned | HD CARRIER LLC | 321J | ENONVALLEY | PA |
| 2016-04-26 | 878-668-6XXX | 6000–6999 | Assigned | HD CARRIER LLC | 321J | ENONVALLEY | PA |
| 2016-04-26 | 878-668-7XXX | 7000–7999 | Assigned | HD CARRIER LLC | 321J | ENONVALLEY | PA |
| 2016-04-26 | 878-668-8XXX | 8000–8999 | Assigned | HD CARRIER LLC | 321J | ENONVALLEY | PA |
| 2016-04-26 | 878-870-2XXX | 2000–2999 | Assigned | HD CARRIER LLC | 321J | FARMINGTON | PA |
| 2016-04-26 | 878-870-3XXX | 3000–3999 | Assigned | HD CARRIER LLC | 321J | FARMINGTON | PA |
| 2016-04-26 | 878-870-4XXX | 4000–4999 | Assigned | HD CARRIER LLC | 321J | FARMINGTON | PA |
| 2016-04-26 | 878-870-5XXX | 5000–5999 | Assigned | HD CARRIER LLC | 321J | FARMINGTON | PA |
| 2016-04-26 | 878-870-6XXX | 6000–6999 | Assigned | HD CARRIER LLC | 321J | FARMINGTON | PA |
| 2016-04-26 | 878-870-7XXX | 7000–7999 | Assigned | HD CARRIER LLC | 321J | FARMINGTON | PA |
| 2016-04-26 | 878-870-8XXX | 8000–8999 | Assigned | HD CARRIER LLC | 321J | FARMINGTON | PA |
| 2016-04-26 | 878-870-9XXX | 9000–9999 | Assigned | HD CARRIER LLC | 321J | FARMINGTON | PA |
| 2016-04-07 | 878-400-0XXX | 0000–0999 | Assigned | ONVOY, LLC - PA | 547E | WAMPUM | PA |
| 2016-04-07 | 878-666-6XXX | 6000–6999 | Assigned | ONVOY, LLC - PA | 547E | MARION CTR | PA |
| 2016-04-07 | 878-900-0XXX | 0000–0999 | Assigned | ONVOY, LLC - PA | 547E | EPALESTINE | PA |
| 2016-03-28 | 878-645-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | GREENSBURG | PA |
| 2016-03-25 | 878-378-0XXX | 0000–0999 | Assigned | ONVOY, LLC - PA | 547E | WESTNEWTON | PA |
| 2016-03-25 | 878-378-1XXX | 1000–1999 | Assigned | ONVOY, LLC - PA | 547E | WESTNEWTON | PA |
| 2016-03-25 | 878-847-0XXX | 0000–0999 | Assigned | ONVOY, LLC - PA | 547E | NEWKNSNGTN | PA |
| 2016-03-25 | 878-847-1XXX | 1000–1999 | Assigned | ONVOY, LLC - PA | 547E | NEWKNSNGTN | PA |
| 2016-03-25 | 878-870-0XXX | 0000–0999 | Assigned | ONVOY, LLC - PA | 547E | FARMINGTON | PA |
| 2016-03-25 | 878-870-1XXX | 1000–1999 | Assigned | ONVOY, LLC - PA | 547E | FARMINGTON | PA |
| 2016-03-23 | 878-206-0XXX | 0000–0999 | Assigned | ONVOY, LLC - PA | 547E | FAIRCHANCE | PA |
| 2016-03-23 | 878-206-1XXX | 1000–1999 | Assigned | ONVOY, LLC - PA | 547E | FAIRCHANCE | PA |
| 2016-03-17 | 878-208-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CRIDERSCOR | PA |
| 2016-03-17 | 878-888-1XXX | 1000–1999 | Assigned | ONVOY, LLC - PA | 547E | PARKWOOD | PA |
| 2016-03-17 | 878-888-2XXX | 2000–2999 | Assigned | ONVOY, LLC - PA | 547E | PARKWOOD | PA |
| 2016-03-15 | 878-444-1XXX | 1000–1999 | Assigned | ONVOY, LLC - PA | 547E | HOMER CITY | PA |
| 2016-03-15 | 878-444-2XXX | 2000–2999 | Assigned | ONVOY, LLC - PA | 547E | HOMER CITY | PA |
| 2016-03-14 | 878-203-0XXX | 0000–0999 | Assigned | ONVOY, LLC - PA | 547E | CHARLEROI | PA |
| 2016-03-14 | 878-203-1XXX | 1000–1999 | Assigned | ONVOY, LLC - PA | 547E | CHARLEROI | PA |
| 2016-03-11 | 878-313-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 6392 | ROCHESTER | PA |
| 2016-03-10 | 878-218-7XXX | 7000–7999 | Assigned | ONVOY, LLC - PA | 547E | WASHINGTON | PA |
| 2016-03-10 | 878-218-9XXX | 9000–9999 | Assigned | ONVOY, LLC - PA | 547E | WASHINGTON | PA |
| 2016-03-10 | 878-645-3XXX | 3000–3999 | Assigned | ONVOY, LLC - PA | 547E | GREENSBURG | PA |
| 2016-03-10 | 878-645-4XXX | 4000–4999 | Assigned | ONVOY, LLC - PA | 547E | GREENSBURG | PA |
| 2016-03-07 | 878-777-1XXX | 1000–1999 | Assigned | ONVOY, LLC - PA | 547E | DERRY | PA |
| 2016-03-07 | 878-777-2XXX | 2000–2999 | Assigned | ONVOY, LLC - PA | 547E | DERRY | PA |
| 2016-03-02 | 878-222-3XXX | 3000–3999 | Assigned | ONVOY, LLC - PA | 547E | NEWWLMNGTN | 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.