Talk:Area codes 812 and 930

Amerocentrism
Isn't it a little Amerocentric? Assuming prior knowledge of USA, the area code system etc. Is it not concievable that there is another area code 812 in some other country? —Preceding unsigned comment added by 79.138.247.169 (talk) 04:21, 20 January 2009 (UTC)

It is concievable, but does it exist? If you know of another area code 812, please make us aware.

From a different writer: It's conceivable, but for calls from there to area 812 in Indiana (or the other way around) you'd have to dial:

international_access_code + country_code + city_code + local_tel._number

("city_code" is, in the U.S., area code. The U.S. is part of country code 1, which also includes Canada, and also several small countries which were or are in area code 809.)

I am far less familiar with area code changes in other countries. I heard that back in 1990, what had been city code 1 in the London area in the UK split in two; because of a simultaneous move to standardize telephone number lengths, that 1 was replaced by 71 in inner London area and by 81 in outer London area (otherwise, we'd have seen some places -- presumably inner London area -- stay in 1 and a new code being assigned to outer London area). — Preceding unsigned comment added by 128.63.16.20 (talk) 15:55, 8 May 2014 (UTC)

Explain the shortage in area 812
With regard to area code 812, I find this:

"the supply of numbers is limited because portions of the Louisville and Cincinnati LATAs spill into the 812 territory, meaning numbers located in Louisville's 502, Cincinnati's 513 and northern Kentucky's 859 aren't available for use."[1]

OK, the reference lists projected exhaust dates. If, in addition, it has comment about limited availability of some prefixes, say in area 812, could you please point me to where in the reference such a comment is.

I am familiar with the state of Delaware being in the Philadelphia LATA, and I know that all prefixes along the Delaware-Pennsylvania border have some local calls going across that border. Long ago, those cross-border local calls were 7 digits, but later they changed to area code + 7 digits; it is noted that this reduces restrictions on prefix assignments. I don't know what the current situation is in those parts of Indiana which are near Louisville and Cincinnati, but I do recall seeing a phone book years ago (for Cincinnati) with a call guide listing prefixes in the Cincinnati area (Ohio points in area 513, Kentucky points then in area 606 and since moved to area 859, and a small part of Indiana which is in area 812).

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