Area Code and Exchange (715) 621 in Wisconsin
Exchange Code 621 for Area Code 715 covers the city of Presque Isle, Vilas County in the State of Wisconsin. It is centered at N 46º 14' 49.82", W 89º 43' 45.56". This Exchange Code was introduced on 16 March 2004 and is designated as being used for Wireless telephones.
This Exchange covers telephone numbers ranging from (715) 621-0000 to (715) 621-9999.
Technical Information for Exchange (715) 621
NXX/Exchange Code: 621
City: Presque Isle
Rate Center: PRESQUE IS
Time Zone: CST
Exchange Status: Active
NXX Intro Date: 16 March 2004
Number Pooling: Yes
Number Pooling in Exchange (715) 621
The initial set up of an Exchange was to have all 10,000 numbers (0000 - 9999) for a particular Rate Center allocated to the same local exhange carrier. With the advent of multiple carriers, allocating each one of them their own Exchange Code would be inefficient and soon use up the available number pools for a particular area. To counter this, some exchanges are split into blocks of 1,000 numbers, which can each be allocated to individual carriers. This cuts down on wasted numbers that aren't allocated as each carrier has a smaller pool available.Number Pooling is activated in Exchange 715-621 and the following thousand blocks are currently assigned to carriers.