North American Numbers Source-cited · ownership disclosed
Area code
458
In service
United States · since 2010

Eugene / rest of Oregon (overlay)

Overlay of 541 introduced in 2010, serving all of Oregon outside the northwestern corner. First exchange issued in Eugene in 2011.

The essentials Numbering data · NumberResearch · as of 2026-09-18
Place
Eugene / rest of Oregon (overlay)
Type
geographic
Status
in service
In service since
2010
Projected exhaust
2051 Q2

Status, dates and counts are read from NumberResearch (NANPA / CNAC / FCC records). Assignment records show initial assignees, not the carrier serving a number today.

A · Where it is

Where 458 is

Most of Oregon outside the northwestern corner (same footprint as 541)..

Communities served wholly or partly by 458:

EugeneSpringfieldCorvallisAlbanyMedfordBendGrants PassKlamath FallsPendleton

Same geographic footprint as 541; not tied to a single city.

B · Relationships

How it relates to other codes

The codes 458 was split from, spawned, or shares its area with. A split divides the map and changes some numbers; an overlay shares the same ground and changes none — what's the difference?

Overlay · 2010 541 Eugene / rest of Oregon Overlays the 541 service area; both codes share the same geography.
What's changing. Overlay of 541; ten-digit dialing mandatory.
C · History

How 458 got here

2010-02-10
Oregon PUC approved 458 as an overlay of 541.
Source: Wikipedia
2011-08
First 458 exchange issued in Eugene.
Source: Wikipedia
D · Capacity

How full it is

Prefixes assigned
246
Prefixes available
554
Thousands-blocks assigned
1,661

Prefix-assignment counts describe allocation to carriers, not how many individual numbers are in use. Full technical records: NumberResearch ↗.

Compare 458 with another code →
Sources
Wikipedia ↗
Area codes 541 and 458
NumberResearch.org ↗
Live status, dates, assignment counts and exhaust forecast — data as of 2026-09-18 (CC BY 4.0).

Place, relationships and history above are compiled by North American Numbers from the sources listed and last checked 2026-09-18. A check date is not an expert review — see how this is made. Flag an error.