Area Code 940
Telephone Central Office Building Pictures

The following are respresntative examples of telephone central office buildings in Area Code 940 (Texas).

Click on the pictures below for a larger version.

Denton

Listing Updated: July 2014 Operating Company: Frontier/Verizon/GTE CLLI: DNTNTXXADS1 Switch Type: Ribbon/Genband/Nortel DMS-100 Prefixes Served: (940) 243, 297, 320, 323, 349, 369, 380-4, 387, 483-4, 565-6, 591, 891, 898 Notes: Source: GSV