Area Code 458: Cities, Coverage, and Regulations - area-code -

Frequently Asked Questions

Area code 458 covers several Oregon cities, including Albany, Eugene, Bend, Medford, and Springfield. These cities represent a mix of urban and rural areas across the state, excluding the northwestern region where Portland and Salem are located. This area code is an overlay to area code 541, meaning they serve the same geographic area.
Area code 458 was implemented on February 10, 2010, as the 346th area code in the North American Numbering Plan (NANP) and Oregon's fourth. It was introduced as an overlay for area code 541 to accommodate the increasing demand for phone numbers and prevent number exhaustion within the existing 541 area code.
Always dial the full 10-digit number (458-XXX-XXXX) for local calls within area code 458. Never use 7-digit dialing, even for local calls within the same area code. This ensures accurate call routing because 458 is an overlay of the 541 area code, and both serve the same geographic region.
To dial an area code 458 number from a different area code, you must first dial '1', followed by the 10-digit number (1-458-XXX-XXXX). This ensures your call is correctly routed as a long-distance call. Remember, even for operator-assisted calls, you must dial a '0' followed by the complete 10-digit number.
Area code 458 is an overlay for area code 541 in Oregon. This means both area codes serve the same geographic area. The overlay was introduced to address the growing need for phone numbers within the 541 region, allowing for more numbers within the same geographic footprint.
Area code 458 exclusively covers a large portion of Oregon, USA. It's important to note that it does not cover the entire state; the northwestern region, including cities like Portland and Salem, falls under different area codes. Area code 458 is an overlay of area code 541, meaning they both serve the same geographic region within Oregon.
Area code 458 came into effect in Oregon on February 10, 2010. It was the 346th area code introduced in the North American Numbering Plan and the fourth in Oregon, implemented in response to the projected shortage of available numbers in the existing 541 area code.
For developers, area code 458, like any area code, is essential for handling phone numbers correctly in applications. It impacts call routing, phone number validation, SMS messaging, location-based services, and emergency service integration. Correct processing ensures accurate routing, validation, and seamless communication.
The thousands-block system, managed by a Pooling Administrator, allocates area code 458 numbers in blocks of 1,000. This differs from the older 10,000-block system and aims to optimize number resource use and prevent hoarding. Developers interacting with carriers or managing phone numbers need to be aware of this.
Ten-digit dialing is mandatory for all calls within area code 458, even local ones. This is crucial because it shares its geographic region with area code 541. Ten-digit dialing ensures calls are routed correctly, a key consideration for developers building telephony applications.
Regulatory information regarding area code 458 can be found on the websites of the Federal Communications Commission (FCC) and the Oregon Public Utility Commission (OPUC). These bodies govern telecommunications and utility services, including area code usage and allocation.
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