235
Area code
MO
United States geographic area code, in service since 2024-03-24. Part of the 235/573 overlay complex — ten-digit dialing required.
Statusin service
Introduced2024-03-24
JurisdictionMO, US
Local dialing10D
Time zoneCentral
Last verified2026-09-17
Utilization 6.8% of assignable prefixes assigned
As of 09/17/2026
0%54 of ~792 assignable NXX values (200–999 excl. N11)100%
Prefix-level assignment does not equal number-level exhaustion; thousands-block pooling extends capacity. First assignment on record 2024-09-12, most recent 2026-09-14.
Area codes serve rate-center geographies, not municipal boundaries. “MO” identifies the jurisdiction, not an exact city footprint.
Top assignees
Ranked by assigned prefixes · initial assignee ≠ current carrier| Rank | Assignee | Prefixes | Share |
|---|---|---|---|
| 01 | NEW CINGULAR WIRELESS PCS, LLC - IL | 15 | 27.8% |
| 02 | 14 | 25.9% | |
| 03 | ONVOY, LLC - MO | 10 | 18.5% |
| 04 | T-MOBILE USA, INC. | 2 | 3.7% |
| 05 | PEERLESS NETWORK OF MISSOURI, LLC - MO | 2 | 3.7% |
| 06 | HD CARRIER LLC | 2 | 3.7% |
| 07 | WAVENATION, LLC | 1 | 1.9% |
| 08 | UNITED STATES CELLULAR - MO | 1 | 1.9% |
| 09 | SHELCOMM | 1 | 1.9% |
| 10 | OPENTACT INC. | 1 | 1.9% |
Important: these are initial assignees from NANPA CO-code records — the carrier a prefix was originally assigned to. Because of number portability, the current serving carrier of any individual number may differ.
Change history
Recorded events for this NPA- 2022-06-17 NPA 235 to Overlay NPA 573 (Missouri)
- 2024-03-24Area code 235 entered service (created from 573).
Planning letters & orders
Primary documents| Date | Document | Subject |
|---|---|---|
| 2022-06-17 | PL-596 ↗ | NPA 235 to Overlay NPA 573 (Missouri) |