Area Code and Exchange (920) 644 in Wisconsin
Exchange Code 644 for Area Code 920 covers the city of Mayville, Dodge County in the State of Wisconsin. It is centered at N 43º 29' 38.98", W 88º 32' 41.37". This Exchange Code was introduced on 15 April 2002 and is designated as being used for Landline telephones.
This Exchange covers telephone numbers ranging from (920) 644-0000 to (920) 644-9999.
In this Exchange Code there are 3 telephone numbers that have been the subject of complaints to the FCC and 4 telephone numbers that our research shows belong to legitimate businesses.
Technical Information for Exchange (920) 644
NXX/Exchange Code: 644
Rate Center: MAYVILLE
Time Zone: CST
Exchange Status: Active
NXX Intro Date: 15 April 2002
CBSA Code: 13180
Number Pooling: Yes
Number Pooling in Exchange (920) 644
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 920-644 and the following thousand blocks are currently assigned to carriers.
Telephone numbers subject to FCC Complaints in Exchange (920) 644 3
Below are the 3 telephone numbers that are subject to complaints to the FCC in this Exchange Code.
Businesses and other Entities in Exchange (920) 644 6
Below are details of all of the legitimate businesses and other entities that we have identified within this Exchange Code.