Indiana | Illinois | Michigan

Overlay vs Split
Why splits are the best relief for large area codes
Why overlays are the best relief for small area codes


Indiana Area Code Map

Indiana Area Code History

Northern Indiana
(219, 260, 574)

Central Indiana
(317, 463, 765)

Southern Indiana
(812, 930)

Special Feature
1965 - GTE Richmond Central Office Fire
(regular or frames)


Special Reports
1997 - Indiana's 317/765 Split
2002 - Indiana's 219/260/574 Split
2015 - Indiana's 812/930 Overlay
2016 - Indiana's 317/463 Overlay


Future Relief
2032? - Indiana 765/634? Relief

At least 30 years ...
- Indiana 260/834? Relief
- Indiana 219/943? Relief
- Indiana 574/665? Relief

Future NPA numbers 765, 574, 930 and 463 were 1) taken from an accidentally published working document, 2) absolutely not official, 3) subject to change and 100% accurate.
Future NPA numbers 634, 665, 834 and 943 are predicted.

 

Other NANP Sites
NANPA Official Sitehttp://www.nanpa.com/
TRA Official Sitehttp://www.trainfo.com/
The FCC Homepagehttp://www.fcc.gov/
 
More Telecom Sites
Linc Madison'sLincMad's Telecom Page
Telecom DIGESTArchives and Recent Issues
usenet news:comp.dcom.telecom
 
Beyond the NANP
David Liebold'sWorld Telephone Numbering Guide


Telecom Beyond

NANP Expansion
'Longer than 10 digit numbers'

My Plan for moving from 7D/10D to 8D/12D


Wireless Overview

Introducing Verizon Wireless
- America's First Mega-Carrier

Wireless Spectrum and Licencing
@TK.COM


Written / Compiled for Telecom Indiana
Contact the Author
James Bellaire <bellaire@tk.com>
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Good people, great service.
574 260 219 317 812 765 Chicago 269 Michigan 517 Michigan