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.
| Assigned | NPA-NXX | Thousands-blocks taken (last-4 opening) | Code holder | OCN | Rate center | State |
|---|---|---|---|---|---|---|
| — | 701-337 | none assigned yet which blocks → | RESERVATION TEL. COOP. | 1632 | EMMET | ND |
| — | 701-385 | not yet reported which blocks → | RESERVATION TEL. COOP. | 1632 | KENMARE | ND |
| — | 701-444 | not yet reported which blocks → | RESERVATION TEL. COOP. | 1632 | WATFORD CY | ND |
| — | 701-463 | not yet reported which blocks → | RESERVATION TEL. COOP. | 1632 | GARRISON | ND |
| — | 701-467 | not yet reported which blocks → | RESERVATION TEL. COOP. | 1632 | NORMA | ND |
| — | 701-497 | not yet reported which blocks → | RESERVATION TEL. COOP. | 1632 | PLAZA | ND |
| — | 701-529 | not yet reported which blocks → | RESERVATION TEL. COOP. | 1632 | DOUGLAS | ND |
| — | 701-565 | not yet reported which blocks → | RESERVATION TEL. COOP. | 1632 | SQUAW GAP | ND |
| — | 701-586 | not yet reported which blocks → | RESERVATION TEL. COOP. | 1632 | ARNEGARD | ND |
| — | 701-623 | not yet reported which blocks → | RESERVATION TEL. COOP. | 1632 | MEDORA | ND |
| — | 701-627 | not yet reported which blocks → | RESERVATION TEL. COOP. | 1632 | NEW TOWN | ND |
| — | 701-628 | not yet reported which blocks → | RESERVATION TEL. COOP. | 1632 | STANLEY | ND |
| — | 701-675 | not yet reported which blocks → | RESERVATION TEL. COOP. | 1632 | KEENE | ND |
| — | 701-679 | none assigned yet which blocks → | RESERVATION TEL. COOP. | 1632 | MAX | ND |
| — | 701-726 | not yet reported which blocks → | RESERVATION TEL. COOP. | 1632 | MAKOTI | ND |
| — | 701-743 | not yet reported which blocks → | RESERVATION TEL. COOP. | 1632 | ROSEGLEN | ND |
| — | 701-755 | not yet reported which blocks → | RESERVATION TEL. COOP. | 1632 | ROSS | ND |
| — | 701-758 | not yet reported which blocks → | RESERVATION TEL. COOP. | 1632 | RYDER | ND |
| — | 701-759 | not yet reported which blocks → | RESERVATION TEL. COOP. | 1632 | MANDAREE | ND |
| — | 701-828 | not yet reported which blocks → | RESERVATION TEL. COOP. | 1632 | ALEXANDER | ND |
| — | 701-842 | not yet reported which blocks → | RESERVATION TEL. COOP. | 1632 | WATFORD CY | ND |
| — | 701-848 | none assigned yet which blocks → | RESERVATION TEL. COOP. | 1632 | SPENCER | ND |
| — | 701-862 | not yet reported which blocks → | RESERVATION TEL. COOP. | 1632 | PARSHALL | ND |
| — | 701-872 | none assigned yet which blocks → | RESERVATION TEL. COOP. | 1632 | BEACH | ND |
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.