528 Area Code
Personal communications services
The 528 area code is reserved for special services (Non-Geographic Services). Numbers in it are used for personal communications services in the 5YY non-geographic pool.
How 528 is used
Numbers in 528 are used for personal communications services such as one-number follow-me forwarding. The called party (the subscriber) pays for the call while the calling party is billed at standard long-distance rates. All 5YY codes share the same purpose and pool of central-office assignments.
- Purpose
- Personal communications services
- Assignee
- NANPA on behalf of the FCC
- Dialed as
- 1-528-NXX-XXXX
History
Creation: Area code 528 was placed into service on March 2, 2022 as the fourteenth 5YY non-geographic NPA, relieving 527. It was reserved in NANPA's May 2012 Planning Letter 703 to augment the 5YY pool. NANPA announced its initiation in early 2022 alongside continuing growth in caller-paid PCS and machine-to-machine numbering demand.
Relieved: Area code 528 was activated to relieve 527.
Mnemonics: The digits 528 map to letter combinations on the standard telephone keypad, yielding 27 possible three-letter mnemonics. Prior to 1995, the middle digit of area codes was restricted to 0 or 1 — codes created before then cannot form mnemonics.
Sources: en.wikipedia.org/wiki/Personal_communications_service_(NANP).
Other special-use area codes
Same-category codes first, then the rest of the NANP special-use portfolio.
Frequently Asked Questions
What is area code 528 used for?
528 is a special-use area code in the North American Numbering Plan. The 528 area code is reserved for special services (Non-Geographic Services). Numbers in it are used for personal communications services in the 5YY non-geographic pool.
How is 528 dialed?
Numbers in 528 are dialed as a full ten-digit number (1-528-NXX-XXXX). It is a non-geographic area code, so 1-528 numbers are not tied to any city or state.
Who assigns 528 numbers?
NANPA on behalf of the FCC
What did 528 relieve or replace?
Area code 528 was activated to relieve 527 as that pool of numbers neared exhaustion.
When did area code 528 go into service?
Area code 528 was placed into service on March 2, 2022. It was the 14th 5YY non-geographic area code.