NumberResearchRecent thousands-block assignments
5 blocks assigned in August 2026 · 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, August 2026 — NPA 717
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| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2026-08-27 | 717-401-6XXX | 6000–6999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | FAYETTEVL | PA |
| 2026-08-24 | 717-387-4XXX | 4000–4999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | WAYNESBORO | PA |
| 2026-08-18 | 717-375-3XXX | 3000–3999 | Assigned | TERRA NOVA TELECOM INC. | 145J | MARION | PA |
| 2026-08-18 | 717-726-1XXX | 1000–1999 | Assigned | TERRA NOVA TELECOM INC. | 145J | LEWISBERRY | PA |
| 2026-08-18 | 717-853-5XXX | 5000–5999 | Assigned | TERRA NOVA TELECOM INC. | 145J | MARYSVILLE | 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.