The NSAP Format…

AFI

IDI

HO-

DSP

ESI

SELECTOR

Initial Domain Part

Domain Specific Part

Host Number

Network # or

Area

{E.164,DCC,ICD}

(1 byte)

• IDI can be E.164 “phone number”

• DCC Format: IDI is data country code, country identifiers from ISO 3166. Administered by ISO national members

• ICD: Intl Code Designator (from BSI)

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