Area Code and Exchange (715) 620 in Wisconsin
Exchange Code 620 for Area Code 715 covers the city of Black River Falls, Jackson County in the State of Wisconsin. It is centered at N 44º 17' 40.86", W 90º 51' 5.51". This Exchange Code was introduced on 6 October 2006 and is designated as being used for Wireless telephones.
This Exchange covers telephone numbers ranging from (715) 620-0000 to (715) 620-9999.
Technical Information for Exchange (715) 620
NXX/Exchange Code: 620
City: Black River Falls
Rate Center: EAU CLAIRE
Time Zone: CST
Exchange Status: Active
NXX Intro Date: 6 October 2006
Number Pooling: Yes
Number Pooling in Exchange (715) 620
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 715-620 and the following thousand blocks are currently assigned to carriers.