NumberResearchRecent thousands-block assignments
0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026
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 734
New assignments by month
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| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2017-11-20 | 734-359-8XXX | 8000–8999 | Assigned | TELNET WORLDWIDE, INC. | 817J | PLYMOUTH | MI |
| 2014-08-28 | 734-743-4XXX | 4000–4999 | Assigned | TELNET WORLDWIDE, INC. | 817J | LIVONIA | MI |
| 2005-08-05 | 734-385-1XXX | 1000–1999 | Assigned | TELNET WORLDWIDE, INC. | 817J | CHELSEA | MI |
| 2005-08-03 | 734-233-3XXX | 3000–3999 | Assigned | TELNET WORLDWIDE, INC. | 817J | PLYMOUTH | MI |
| 2005-08-03 | 734-252-4XXX | 4000–4999 | Assigned | TELNET WORLDWIDE, INC. | 817J | BELLEVILLE | MI |
| 2005-08-03 | 734-403-6XXX | 6000–6999 | Assigned | TELNET WORLDWIDE, INC. | 817J | ROMULUS | MI |
| 2005-08-03 | 734-535-3XXX | 3000–3999 | Assigned | TELNET WORLDWIDE, INC. | 817J | FLAT ROCK | MI |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.