NumberResearchRecent thousands-block assignments
0 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, all time — NPA 878
New assignments by month
Sep 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2026-07-06 | 878-221-1XXX | 1000–1999 | Assigned | TERRA NOVA TELECOM INC. | 145J | BUTLER | PA |
| 2026-01-12 | 878-203-5XXX | 5000–5999 | Assigned | TERRA NOVA TELECOM INC. | 145J | CHARLEROI | PA |
| 2026-01-12 | 878-206-5XXX | 5000–5999 | Assigned | TERRA NOVA TELECOM INC. | 145J | FAIRCHANCE | PA |
| 2026-01-12 | 878-400-3XXX | 3000–3999 | Assigned | TERRA NOVA TELECOM INC. | 145J | WAMPUM | PA |
| 2025-07-10 | 878-210-0XXX | 0000–0999 | Assigned | TERRA NOVA TELECOM INC. | 145J | MIDWAY | PA |
| 2025-07-10 | 878-260-0XXX | 0000–0999 | Assigned | TERRA NOVA TELECOM INC. | 145J | CURTISVL | PA |
| 2025-07-09 | 878-225-2XXX | 2000–2999 | Assigned | TERRA NOVA TELECOM INC. | 145J | ELLWOOD CY | PA |
| 2025-07-09 | 878-244-4XXX | 4000–4999 | Assigned | TERRA NOVA TELECOM INC. | 145J | SLIPPERYRK | PA |
| 2025-07-09 | 878-422-4XXX | 4000–4999 | Assigned | TERRA NOVA TELECOM INC. | 145J | KITTANNING | PA |
| 2025-07-09 | 878-425-1XXX | 1000–1999 | Assigned | TERRA NOVA TELECOM INC. | 145J | SAXONBURG | PA |
| 2025-07-07 | 878-822-8XXX | 8000–8999 | Assigned | TERRA NOVA TELECOM INC. | 145J | BUTLER | PA |
| 2025-07-01 | 878-444-3XXX | 3000–3999 | Assigned | TERRA NOVA TELECOM INC. | 145J | HOMER CITY | PA |
| 2025-06-30 | 878-220-2XXX | 2000–2999 | Assigned | TERRA NOVA TELECOM INC. | 145J | EXPORT | PA |
| 2025-06-25 | 878-224-4XXX | 4000–4999 | Assigned | TERRA NOVA TELECOM INC. | 145J | FORD CITY | PA |
| 2025-03-17 | 878-868-6XXX | 6000–6999 | Assigned | TERRA NOVA TELECOM INC. | 145J | NEWFLORNCE | PA |
| 2025-03-10 | 878-205-5XXX | 5000–5999 | Assigned | TERRA NOVA TELECOM INC. | 145J | CONNELLSVL | PA |
| 2024-08-21 | 878-203-4XXX | 4000–4999 | Assigned | TERRA NOVA TELECOM INC. | 145J | CHARLEROI | PA |
| 2024-08-21 | 878-206-4XXX | 4000–4999 | Assigned | TERRA NOVA TELECOM INC. | 145J | FAIRCHANCE | PA |
| 2024-08-21 | 878-400-2XXX | 2000–2999 | Assigned | TERRA NOVA TELECOM INC. | 145J | WAMPUM | PA |
| 2024-08-21 | 878-439-1XXX | 1000–1999 | Assigned | TERRA NOVA TELECOM INC. | 145J | ROCHESTER | PA |
| 2024-08-19 | 878-309-5XXX | 5000–5999 | Assigned | TERRA NOVA TELECOM INC. | 145J | GREENSBURG | PA |
| 2024-08-13 | 878-377-1XXX | 1000–1999 | Assigned | TERRA NOVA TELECOM INC. | 145J | SHARPSVL | PA |
| 2024-01-16 | 878-202-0XXX | 0000–0999 | Assigned | TERRA NOVA TELECOM INC. | 145J | SHARON | PA |
| 2024-01-12 | 878-203-3XXX | 3000–3999 | Assigned | TERRA NOVA TELECOM INC. | 145J | CHARLEROI | PA |
| 2024-01-12 | 878-206-2XXX | 2000–2999 | Assigned | TERRA NOVA TELECOM INC. | 145J | FAIRCHANCE | PA |
| 2024-01-12 | 878-214-4XXX | 4000–4999 | Assigned | TERRA NOVA TELECOM INC. | 145J | GREENSBURG | PA |
| 2024-01-12 | 878-400-4XXX | 4000–4999 | Assigned | TERRA NOVA TELECOM INC. | 145J | WAMPUM | PA |
| 2024-01-11 | 878-439-0XXX | 0000–0999 | Assigned | TERRA NOVA TELECOM INC. | 145J | ROCHESTER | PA |
| 2024-01-10 | 878-900-1XXX | 1000–1999 | Assigned | TERRA NOVA TELECOM INC. | 145J | EPALESTINE | PA |
| 2024-01-09 | 878-888-4XXX | 4000–4999 | Assigned | TERRA NOVA TELECOM INC. | 145J | PARKWOOD | PA |
| 2022-09-07 | 878-223-9XXX | 9000–9999 | Assigned | TERRA NOVA TELECOM INC. | 145J | UNIONTOWN | PA |
| 2022-02-16 | 878-626-6XXX | 6000–6999 | Assigned | TERRA NOVA TELECOM INC. | 145J | PTTSBGZON7 | PA |
| 2021-12-07 | 878-336-3XXX | 3000–3999 | Assigned | TERRA NOVA TELECOM INC. | 145J | PTTSBGZON6 | PA |
| 2019-03-29 | 878-600-0XXX | 0000–0999 | Assigned | TERRA NOVA TELECOM INC. | 145J | PTTSBGZON1 | 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.