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 |
|---|---|---|---|---|---|---|---|
| 2022-12-30 | 878-250-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 6392 | CRIDERSCOR | PA |
| 2022-12-09 | 878-677-9XXX | 9000–9999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - PA | 7315 | NEWWLMNGTN | PA |
| 2022-12-08 | 878-268-5XXX | 5000–5999 | Assigned | ONVOY, LLC - PA | 547E | IMPERIAL | PA |
| 2022-11-23 | 878-465-2XXX | 2000–2999 | Assigned | COMCAST IP PHONE, LLC | 318J | WEXFORD | PA |
| 2022-11-23 | 878-465-4XXX | 4000–4999 | Assigned | COMCAST IP PHONE, LLC | 318J | WEXFORD | PA |
| 2022-11-21 | 878-204-2XXX | 2000–2999 | Assigned | ONVOY, LLC - PA | 547E | SHEAKLEYVL | PA |
| 2022-11-18 | 878-345-1XXX | 1000–1999 | Assigned | TELNYX LLC | 073H | PTGSBNZN20 | PA |
| 2022-11-15 | 878-336-4XXX | 4000–4999 | Assigned | ONVOY, LLC - PA | 547E | PTTSBGZON6 | PA |
| 2022-11-15 | 878-626-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | PTTSBGZON7 | PA |
| 2022-11-15 | 878-626-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | PTTSBGZON7 | PA |
| 2022-11-15 | 878-626-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | PTTSBGZON7 | PA |
| 2022-11-15 | 878-626-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | PTTSBGZON7 | PA |
| 2022-11-08 | 878-433-2XXX | 2000–2999 | Assigned | ONVOY, LLC - PA | 547E | CLAIRTON | PA |
| 2022-11-03 | 878-263-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | SHARPSVL | PA |
| 2022-11-03 | 878-263-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | SHARPSVL | PA |
| 2022-11-03 | 878-263-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | SHARPSVL | PA |
| 2022-11-03 | 878-263-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | SHARPSVL | PA |
| 2022-11-03 | 878-263-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | SHARPSVL | PA |
| 2022-11-03 | 878-263-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | SHARPSVL | PA |
| 2022-11-03 | 878-379-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - PA | 4007 | WAYNESBURG | PA |
| 2022-11-03 | 878-898-8XXX | 8000–8999 | Assigned | ONVOY, LLC - PA | 547E | COOPERSTWN | PA |
| 2022-11-03 | 878-898-9XXX | 9000–9999 | Assigned | ONVOY, LLC - PA | 547E | COOPERSTWN | PA |
| 2022-11-01 | 878-377-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | SHARPSVL | PA |
| 2022-10-31 | 878-877-9XXX | 9000–9999 | Assigned | ONVOY, LLC - PA | 547E | BUTLER | PA |
| 2022-10-27 | 878-226-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | WASHINGTON | PA |
| 2022-10-21 | 878-262-8XXX | 8000–8999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - PA | 4007 | MARS | PA |
| 2022-10-19 | 878-250-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 6392 | CRIDERSCOR | PA |
| 2022-10-13 | 878-245-3XXX | 3000–3999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | BEAVER FLS | PA |
| 2022-10-13 | 878-245-6XXX | 6000–6999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | BEAVER FLS | PA |
| 2022-10-12 | 878-226-1XXX | 1000–1999 | Assigned | COMCAST IP PHONE, LLC | 318J | WASHINGTON | PA |
| 2022-10-12 | 878-226-4XXX | 4000–4999 | Assigned | COMCAST IP PHONE, LLC | 318J | WASHINGTON | PA |
| 2022-10-12 | 878-226-5XXX | 5000–5999 | Assigned | COMCAST IP PHONE, LLC | 318J | WASHINGTON | PA |
| 2022-10-12 | 878-226-6XXX | 6000–6999 | Assigned | COMCAST IP PHONE, LLC | 318J | WASHINGTON | PA |
| 2022-10-12 | 878-867-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 6392 | NEWKNSNGTN | PA |
| 2022-10-11 | 878-822-3XXX | 3000–3999 | Assigned | ARMSTRONG TELECOMMUNICATIONS, INC. - PA | 422C | BUTLER | PA |
| 2022-09-29 | 878-247-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | BELLEVRNON | PA |
| 2022-09-14 | 878-867-5XXX | 5000–5999 | Assigned | COMMIO, LLC | 939H | NEWKNSNGTN | PA |
| 2022-09-07 | 878-223-9XXX | 9000–9999 | Assigned | TERRA NOVA TELECOM INC. | 145J | UNIONTOWN | PA |
| 2022-09-07 | 878-877-0XXX | 0000–0999 | Assigned | VONAGE AMERICA LLC | 197D | BUTLER | PA |
| 2022-09-02 | 878-262-3XXX | 3000–3999 | Assigned | ONVOY, LLC - PA | 547E | MARS | PA |
| 2022-09-02 | 878-262-4XXX | 4000–4999 | Assigned | ONVOY, LLC - PA | 547E | MARS | PA |
| 2022-09-02 | 878-262-5XXX | 5000–5999 | Assigned | ONVOY, LLC - PA | 547E | MARS | PA |
| 2022-09-02 | 878-262-6XXX | 6000–6999 | Assigned | ONVOY, LLC - PA | 547E | MARS | PA |
| 2022-09-01 | 878-377-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | SHARPSVL | PA |
| 2022-09-01 | 878-377-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | SHARPSVL | PA |
| 2022-08-31 | 878-232-0XXX | 0000–0999 | Assigned | ONVOY, LLC - PA | 547E | ELLWOOD CY | PA |
| 2022-08-30 | 878-239-2XXX | 2000–2999 | Assigned | ONVOY, LLC - PA | 547E | ZELIENOPLE | PA |
| 2022-08-30 | 878-239-3XXX | 3000–3999 | Assigned | ONVOY, LLC - PA | 547E | ZELIENOPLE | PA |
| 2022-08-30 | 878-723-0XXX | 0000–0999 | Assigned | COMMIO, LLC | 939H | PTTSBGZON3 | PA |
| 2022-08-30 | 878-723-1XXX | 1000–1999 | Assigned | COMMIO, LLC | 939H | PTTSBGZON3 | 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.