How to Dial

The table below shows how to dial direct, make casual calls, and how to make operator assisted calls. It also includes some calls you should not make.

Dialed Digits	Call Type	Carrier
Presubscribed Calls
7_or_10_Digits	Local	Local Telco
1 + 7_or_10_Digits	Regional Toll	Intra-LATA PIC
1 + 10_Digits	Long Distance	Inter-LATA PIC
011 + Country_Code + National_Number	International	Inter-LATA PIC
Casual Calls
101 - XXXX - 1 + 10_Digits	Regional Toll or Long Distance	Carrier XXXX
101 - XXXX - 011 + Country_Code + National_Number	International	Carrier XXXX
Operator Assisted Calls
0	Operator	Local Telco
0 + 7_or_10_Digits	Local	Local Telco
0 + 7_or_10_Digits	Regional Toll	Intra-LATA PIC
0 + 10_Digits	Long Distance	Inter-LATA PIC
0 + Country_Code + National_Number	International	Inter-LATA PIC
101 - XXXX - 0	Operator	Carrier XXXX
101 - XXXX - 0 + Number	Any Except Local	Carrier XXXX
Extremely Overpriced Calls
00 + Number	Any Except Local	USLD / ZPDI
01 + Number	Any Except Local	USLD / ZPDI
0011 + Number	Any Except Local	USLD / ZPDI

Note:

North American telephone numbers are 10 digits with the form NPA-NXX-LINE where NPA represents the 3 digit area code, NXX represents the 3 digit exchange within the area, and LINE represents the 4 digit local loop at the exchange.
Local and regional toll calls are either 7 or 10 digits depending upon your calling area (7 digit numbers exclude the area code). Many areas are switching to 10 digits to allow for area code expansions.
Casual calls are made by dialing 101-XXXX-Number where XXXX is the carrier ID code (CIC). CICs used to be 3 digits; hence the older casual calling services go by "10-10-XXX".
All operator assisted calls incur a surcharge, even if you are billed by AVCInc for the call.
There is no point in making a station-to-station operator assisted call. Dialing direct will achieve the same thing for much less money. Use operator assistance for person-to-person, collect, etc. calls.
Generally speaking, 1+ calling is your cheapest option. With the exception of AVCInc, which charges the same rates for 1+ and casual calls, most carriers will charge more for casual calls. Operator assisted calls are always more expensive than dialing direct.