3.53	Transit network selection (national use)
The format of the transit network selection parameter field is shown in Figure 53.


8
7
6
5
4
3
2
1
1
Odd/
even
Type of network identification


Network
identification plan



2








.
Network identification







n








Figure 53/Q.763 - Transit network selection parameter field
The following codes are used in the subfields of the transit network selection parameter field:
a)	Odd/even indicator
0		even number of digits
1		odd number of digits
b)	Type of network identification
0 0 0	CCITT/ITU-T-standardized identification
0 1 0	national network identification
other	spare
c)	Network identification plan
i)	For CCITT/ITU-T-standardized identification
0 0 0 0	unknown
0 0 1 1	public data network identification code (DNIC), Recommendation X.121
0 1 1 0	public land Mobile Network Identification Code (MNIC), Recommendation E.212
other	spare
ii)	For national network identification
This information is coded according to national specifications.
d)	Network identification
This information is organized according to the network identification plan and the coding principle given in 3.9 e) and, if applicable, in 3.9 f).