NSN meaning in Governmental ?

Answer:

What is National Significant Number mean?

E.164 is an international standard (ITU-T Recommendation), titled The international public telecommunication numbering plan, that defines a numbering plan for the worldwide public switched telephone network (PSTN) and some other data networks.

E.164 defines a general format for international telephone numbers. Plan-conforming numbers are limited to a maximum of 15 digits, excluding the international call prefix. The presentation of a number at the B-party device is usually prefixed with the plus sign (+), indicating that the number includes the country calling code. This is done by the B-party subscribers network by usually looking at the NOA (Nature Of Address) field of the signaling messages. When dialing, the number must typically be prefixed with the appropriate international call prefix (in place of the plus sign), which is a trunk code to reach an international circuit from within the country of call origination.

As described in by the ITU, the E.164 general format must contain only digits split as follows:

Country code (1 to 3 digits)Subscriber number (max 12 digits)

Alternative formats (with area codes and country specific numbers) are available.

The title of the original version and first revision of the E.164 standard was Numbering Plan for the ISDN Era

reference

Full Form	Category
National Student Number	Academic & Science
Nelson	Airport Code
Natasa Min	Business
Never Shout Never	Community
Nutrition Society of Nigeria	Community
Nonprofit Solutions Network	Community
National Support Network	Community
National School Network	Community
Nasa Science Network	Computing
Nokia Solutions and Networks	Computing
NATO Stock Number	General
Nokia Siemens Networks	General
National Sales Network	General
National Storytelling Network	General
Nachum Segal Network	General
Neddungayil Sankunni Narayanan	General
Native Sovereign Nations	General
National Stock Numbers	General
National Supply Number	General
New Star Networks	General
New Source Network	General
New Substance Notification	General
Native Sovereign Nation	Governmental
National Significant Number	Governmental
National Security Network	Governmental
NASIRPUR HALT	Indian Railway Station
NorthStarNet	Internet
Never Say Never	Messaging
Nelson New Zealand	Regional
National Stock Number	Space Science
Northeast Sports Network	Sports
No Such Number	Telecommunication