NumberResearchRecent prefix assignments
0 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/20/2026
The Code holder is who opened each NPA-NXX prefix — not necessarily who holds the numbers. A prefix is 10,000 numbers, but under pooling its ten 1,000-number blocks are handed out individually, often to different carriers; the code holder may hold only one block, or none. The Thousands-blocks column shows how the ten blocks are really split — click which blocks → to see who holds each 1,000-number block and its last-4-digit range. Assignments are initial assignments; the current serving carrier may differ due to portability.
Most active assignees, all time — NPA 604
New assignments by month
Sep 2026
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Oct 2025
| Assigned | NPA-NXX | Thousands-blocks taken (last-4 opening) | Code holder | OCN | Rate center | State |
|---|---|---|---|---|---|---|
| — | 604-575 | not yet reported which blocks → | TELUS | 8086 | Cloverdale | — |
| — | 604-576 | not yet reported which blocks → | TELUS | 8086 | Cloverdale | — |
| — | 604-580 | not yet reported which blocks → | TELUS | 8086 | Whalley | — |
| — | 604-581 | not yet reported which blocks → | TELUS | 8086 | Whalley | — |
| — | 604-582 | not yet reported which blocks → | TELUS | 8086 | Whalley | — |
| — | 604-583 | not yet reported which blocks → | TELUS | 8086 | Whalley | — |
| — | 604-584 | not yet reported which blocks → | TELUS | 8086 | Whalley | — |
| — | 604-585 | not yet reported which blocks → | TELUS | 8086 | Whalley | — |
| — | 604-586 | not yet reported which blocks → | TELUS | 8086 | Whalley | — |
| — | 604-587 | not yet reported which blocks → | TELUS | 8086 | Whalley | — |
| — | 604-588 | not yet reported which blocks → | TELUS | 8086 | Whalley | — |
| — | 604-589 | not yet reported which blocks → | TELUS | 8086 | Whalley | — |
| — | 604-590 | not yet reported which blocks → | TELUS | 8086 | Newton | — |
| — | 604-591 | not yet reported which blocks → | TELUS | 8086 | Newton | — |
| — | 604-592 | not yet reported which blocks → | TELUS | 8086 | Newton | — |
| — | 604-594 | not yet reported which blocks → | TELUS | 8086 | Newton | — |
| — | 604-596 | not yet reported which blocks → | TELUS | 8086 | Newton | — |
| — | 604-597 | not yet reported which blocks → | TELUS | 8086 | Newton | — |
| — | 604-599 | not yet reported which blocks → | TELUS | 8086 | Newton | — |
| — | 604-601 | not yet reported which blocks → | TELUS | 8086 | Vancouver | — |
| — | 604-602 | not yet reported which blocks → | TELUS | 8086 | Vancouver | — |
| — | 604-605 | not yet reported which blocks → | TELUS | 8086 | Vancouver | — |
| — | 604-606 | not yet reported which blocks → | TELUS | 8086 | Vancouver | — |
| — | 604-607 | not yet reported which blocks → | TELUS | 8086 | Aldergrove | — |
| — | 604-608 | not yet reported which blocks → | TELUS | 8086 | Vancouver | — |
| — | 604-609 | not yet reported which blocks → | TELUS | 8086 | Vancouver | — |
| — | 604-612 | not yet reported which blocks → | TELUS Mobility | 8301 | Vancouver | — |
| — | 604-619 | not yet reported which blocks → | TELUS Mobility | 8301 | Vancouver | — |
| — | 604-622 | not yet reported which blocks → | TELUS | 8086 | Vancouver | — |
| — | 604-623 | not yet reported which blocks → | TELUS | 8086 | Vancouver | — |
| — | 604-631 | not yet reported which blocks → | TELUS | 8086 | Vancouver | — |
| — | 604-632 | not yet reported which blocks → | TELUS | 8086 | Vancouver | — |
| — | 604-633 | not yet reported which blocks → | TELUS | 8086 | Vancouver | — |
| — | 604-640 | not yet reported which blocks → | TELUS | 8086 | Vancouver | — |
| — | 604-641 | not yet reported which blocks → | TELUS | 8086 | Vancouver | — |
| — | 604-642 | not yet reported which blocks → | TELUS | 8086 | Vancouver | — |
| — | 604-643 | not yet reported which blocks → | TELUS | 8086 | Vancouver | — |
| — | 604-645 | not yet reported which blocks → | TELUS | 8086 | Vancouver | — |
| — | 604-646 | not yet reported which blocks → | TELUS | 8086 | Vancouver | — |
| — | 604-647 | not yet reported which blocks → | TELUS | 8086 | Vancouver | — |
| — | 604-648 | not yet reported which blocks → | TELUS | 8086 | Vancouver | — |
| — | 604-650 | not yet reported which blocks → | TELUS | 8086 | Vancouver | — |
| — | 604-654 | not yet reported which blocks → | TELUS | 8086 | Vancouver | — |
| — | 604-656 | not yet reported which blocks → | TELUS | 8086 | Vancouver | — |
| — | 604-658 | not yet reported which blocks → | TELUS | 8086 | Vancouver | — |
| — | 604-659 | not yet reported which blocks → | TELUS | 8086 | Vancouver | — |
| — | 604-660 | not yet reported which blocks → | TELUS | 8086 | Vancouver | — |
| — | 604-661 | not yet reported which blocks → | TELUS | 8086 | Vancouver | — |
| — | 604-662 | not yet reported which blocks → | TELUS | 8086 | Vancouver | — |
| — | 604-663 | not yet reported which blocks → | TELUS | 8086 | Vancouver | — |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.