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 |
|---|---|---|---|---|---|---|
| 2008-04-30 | 269-433 | 2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 7 holders which blocks → | TELNET WORLDWIDE, INC. | 817J | CONSTANTIN | MI |
| 2003-08-01 | 269-334 | not yet reported which blocks → | TELNET WORLDWIDE, INC. | 817J | BARODA | MI |
| 2003-08-01 | 269-335 | not yet reported which blocks → | TELNET WORLDWIDE, INC. | 817J | COLON | MI |
| 2002-02-19 | 269-609 | not yet reported which blocks → | TELNET WORLDWIDE, INC. | 817J | UNION | MI |
| 2002-02-19 | 269-865 | not yet reported which blocks → | TELNET WORLDWIDE, INC. | 817J | STURGIS | MI |
| 2002-01-16 | 269-645 | not yet reported which blocks → | TELNET WORLDWIDE, INC. | 817J | THREE OAKS | MI |
| 2001-10-12 | 269-852 | not yet reported which blocks → | TELNET WORLDWIDE, INC. | 817J | SOUTHHAVEN | MI |
| 2001-07-10 | 269-740 | not yet reported which blocks → | TELNET WORLDWIDE, INC. | 817J | HARTFORD | MI |
| 2001-03-09 | 269-747 | not yet reported which blocks → | TELNET WORLDWIDE, INC. | 817J | BELLEVUE | MI |
| 2001-01-10 | 269-620 | not yet reported which blocks → | TELNET WORLDWIDE, INC. | 817J | ALLEGAN | MI |
| 2001-01-10 | 269-869 | not yet reported which blocks → | TELNET WORLDWIDE, INC. | 817J | DOWAGIAC | MI |
| — | 269-310 | not yet reported which blocks → | TELNET WORLDWIDE, INC. | 817J | BRIDGMAN | MI |
| — | 269-585 | not yet reported which blocks → | TELNET WORLDWIDE, INC. | 817J | KALAMAZOO | MI |
| — | 269-592 | not yet reported which blocks → | TELNET WORLDWIDE, INC. | 817J | THREERIVRS | MI |
| — | 269-593 | not yet reported which blocks → | TELNET WORLDWIDE, INC. | 817J | BENTON HBR | MI |
| — | 269-627 | not yet reported which blocks → | TELNET WORLDWIDE, INC. | 4632 | HARTFORD | MI |
| — | 269-652 | not yet reported which blocks → | TELNET WORLDWIDE, INC. | 4632 | BUCHANAN | MI |
| — | 269-704 | not yet reported which blocks → | TELNET WORLDWIDE, INC. | 817J | BATTLE CRK | MI |
| — | 269-733 | not yet reported which blocks → | TELNET WORLDWIDE, INC. | 4632 | THREERIVRS | MI |
| — | 269-736 | 2XXX3XXX6XXX7XXX · 4 holders which blocks → | TELNET WORLDWIDE, INC. | 817J | MIDDLEVL | MI |
| — | 269-798 | not yet reported which blocks → | TELNET WORLDWIDE, INC. | 817J | HASTINGS | MI |
| — | 269-853 | not yet reported which blocks → | TELNET WORLDWIDE, INC. | 4632 | DOWAGIAC | MI |
| — | 269-864 | not yet reported which blocks → | TELNET WORLDWIDE, INC. | 817J | WAYLAND | MI |
| — | 269-912 | not yet reported which blocks → | TELNET WORLDWIDE, INC. | 817J | NILES | MI |
| — | 269-946 | not yet reported which blocks → | TELNET WORLDWIDE, INC. | 4632 | STURGIS | MI |
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.