NumberResearchRecent prefix assignments
347 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/29/2026
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, last 30 days
New assignments by month
Sep 2026
Aug 2026
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Mar 2026
Feb 2026
Jan 2026
Dec 2025
Nov 2025
Oct 2025
Quick find in this area code:
| Assigned | NPA-NXX | Thousands-blocks taken (last-4 opening) | Code holder | OCN | Rate center | State |
|---|---|---|---|---|---|---|
| — | 415-989 | not yet reported which blocks → | PACIFIC BELL | 9740 | SNFC CNTRL | CA |
| — | 415-990 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SNFC CNTRL | CA |
| — | 415-992 | 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → | T-MOBILE USA, INC. | 6529 | SNFC CNTRL | CA |
| — | 415-995 | not yet reported which blocks → | PACIFIC BELL | 9740 | SNFC CNTRL | CA |
| — | 415-997 | 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → | LEVEL 3 TELECOM OF CALIFORNIA, LP - CA | 7718 | NICASIO | CA |
| — | 415-998 | none assigned yet which blocks → | PACIFIC BELL | 9740 | SNFC CNTRL | CA |
| — | 415-999 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SNFC CNTRL | CA |
| — | 416-200 | not yet reported which blocks → | Bell Mobility | 6574 | Toronto | — |
| — | 416-201 | not yet reported which blocks → | Bell Canada | 8051 | Toronto | — |
| — | 416-202 | not yet reported which blocks → | Bell Canada | 8051 | Toronto | — |
| — | 416-203 | not yet reported which blocks → | Bell Canada | 8051 | Toronto | — |
| — | 416-204 | not yet reported which blocks → | Bell Canada | 8051 | Toronto | — |
| — | 416-205 | not yet reported which blocks → | Bell Canada | 8051 | Toronto | — |
| — | 416-207 | not yet reported which blocks → | Bell Canada | 8051 | Toronto | — |
| — | 416-208 | not yet reported which blocks → | Bell Canada | 8051 | Toronto | — |
| — | 416-209 | not yet reported which blocks → | Bell Mobility | 6574 | Toronto | — |
| — | 416-210 | not yet reported which blocks → | Bell Canada | 8051 | Toronto | — |
| — | 416-212 | not yet reported which blocks → | Bell Canada | 8051 | Toronto | — |
| — | 416-213 | not yet reported which blocks → | Bell Canada | 8051 | Toronto | — |
| — | 416-214 | not yet reported which blocks → | Bell Canada | 8051 | Toronto | — |
| — | 416-215 | not yet reported which blocks → | Bell Canada | 8051 | Toronto | — |
| — | 416-216 | not yet reported which blocks → | Bell Canada | 8051 | Toronto | — |
| — | 416-217 | not yet reported which blocks → | Bell Canada | 8051 | Toronto | — |
| — | 416-218 | not yet reported which blocks → | Bell Canada | 8051 | Toronto | — |
| — | 416-219 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Toronto | — |
| — | 416-221 | not yet reported which blocks → | Bell Canada | 8051 | Toronto | — |
| — | 416-222 | not yet reported which blocks → | Bell Canada | 8051 | Toronto | — |
| — | 416-223 | not yet reported which blocks → | Bell Canada | 8051 | Toronto | — |
| — | 416-224 | not yet reported which blocks → | Bell Canada | 8051 | Toronto | — |
| — | 416-225 | not yet reported which blocks → | Bell Canada | 8051 | Toronto | — |
| — | 416-226 | not yet reported which blocks → | Bell Canada | 8051 | Toronto | — |
| — | 416-227 | not yet reported which blocks → | Bell Canada | 8051 | Toronto | — |
| — | 416-228 | not yet reported which blocks → | Bell Canada | 8051 | Toronto | — |
| — | 416-229 | not yet reported which blocks → | Bell Canada | 8051 | Toronto | — |
| — | 416-230 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Toronto | — |
| — | 416-231 | not yet reported which blocks → | Bell Canada | 8051 | Toronto | — |
| — | 416-232 | not yet reported which blocks → | Bell Canada | 8051 | Toronto | — |
| — | 416-233 | not yet reported which blocks → | Bell Canada | 8051 | Toronto | — |
| — | 416-234 | not yet reported which blocks → | Bell Canada | 8051 | Toronto | — |
| — | 416-235 | not yet reported which blocks → | Bell Canada | 8051 | Toronto | — |
| — | 416-236 | not yet reported which blocks → | Bell Canada | 8051 | Toronto | — |
| — | 416-237 | not yet reported which blocks → | Bell Canada | 8051 | Toronto | — |
| — | 416-239 | not yet reported which blocks → | Bell Canada | 8051 | Toronto | — |
| — | 416-240 | not yet reported which blocks → | Bell Canada | 8051 | Toronto | — |
| — | 416-241 | not yet reported which blocks → | Bell Canada | 8051 | Toronto | — |
| — | 416-242 | not yet reported which blocks → | Bell Canada | 8051 | Toronto | — |
| — | 416-243 | not yet reported which blocks → | Bell Canada | 8051 | Toronto | — |
| — | 416-244 | not yet reported which blocks → | Bell Canada | 8051 | Toronto | — |
| — | 416-245 | not yet reported which blocks → | Bell Canada | 8051 | Toronto | — |
| — | 416-246 | not yet reported which blocks → | Bell Canada | 8051 | Toronto | — |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/29/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.