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 |
|---|---|---|---|---|---|---|
| — | 415-640 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SNFC CNTRL | CA |
| — | 415-694 | 0–9 XXXall 10 · 3 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SNFC CNTRL | CA |
| — | 415-699 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SNFC CNTRL | CA |
| — | 415-706 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SNFC CNTRL | CA |
| — | 415-713 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SNFC CNTRL | CA |
| — | 415-717 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SAN RAFAEL | CA |
| — | 415-794 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SNFC CNTRL | CA |
| — | 415-806 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SNFC CNTRL | CA |
| — | 415-810 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SNFC CNTRL | CA |
| — | 415-819 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SNFC CNTRL | CA |
| — | 415-823 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SNFC CNTRL | CA |
| — | 415-827 | 3XXX4XXX5XXX7XXX8XXX9XXX which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | NOVATO | CA |
| — | 415-860 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SNFC CNTRL | CA |
| — | 415-939 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SNFC CNTRL | CA |
| — | 415-987 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SNFC CNTRL | CA |
| — | 415-990 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SNFC CNTRL | CA |
| — | 415-999 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SNFC CNTRL | CA |
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.