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 445
New assignments by month
Sep 2026
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| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2023-08-30 | 445-283-0XXX | 0000–0999 | Assigned | COMMIO, LLC | 939H | DUBLIN | PA |
| 2023-08-30 | 445-283-1XXX | 1000–1999 | Assigned | COMMIO, LLC | 939H | DUBLIN | PA |
| 2023-08-30 | 445-283-7XXX | 7000–7999 | Assigned | COMMIO, LLC | 939H | DUBLIN | PA |
| 2023-08-30 | 445-283-8XXX | 8000–8999 | Assigned | COMMIO, LLC | 939H | DUBLIN | PA |
| 2023-08-30 | 445-283-9XXX | 9000–9999 | Assigned | COMMIO, LLC | 939H | DUBLIN | PA |
| 2022-11-08 | 445-272-0XXX | 0000–0999 | Assigned | COMMIO, LLC | 939H | PHLDLPHZN1 | PA |
| 2022-11-08 | 445-272-1XXX | 1000–1999 | Assigned | COMMIO, LLC | 939H | PHLDLPHZN1 | PA |
| 2022-11-08 | 445-272-2XXX | 2000–2999 | Assigned | COMMIO, LLC | 939H | PHLDLPHZN1 | PA |
| 2022-09-16 | 445-867-5XXX | 5000–5999 | Assigned | COMMIO, LLC | 939H | LANSDALE | PA |
| 2021-05-28 | 445-323-1XXX | 1000–1999 | Assigned | COMMIO, LLC | 939H | PHLDLPHZN4 | PA |
| 2021-05-28 | 445-323-4XXX | 4000–4999 | Assigned | COMMIO, LLC | 939H | PHLDLPHZN4 | PA |
| 2021-05-28 | 445-323-8XXX | 8000–8999 | Assigned | COMMIO, LLC | 939H | PHLDLPHZN4 | PA |
| 2021-05-28 | 445-323-9XXX | 9000–9999 | Assigned | COMMIO, LLC | 939H | PHLDLPHZN4 | 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.