Talk:Maritime Mobile Service Identity: Difference between revisions

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Notes

Can someone please define the following for those of us not familiar with the system:

Ship station identities,
Group ship station identities,
Coast station identities,
Group coast station identities.

A 'ship station' is a ship.

also; Need to add note that due to the shortage of number MMSI numbers are recycled, therefore whilst they are unique at any given moment, they are not unique over time to a given ship or other station.

A new (recycled) MMSI number will be issued to a ship when the ownership changes. — Preceding unsigned comment added by Severndroog (talk • contribs) 13:15, 8 June 2011 (UTC)[reply]

Well explained at MARITIME MOBILE SERVICE IDENTITY at the USCG Navigation Center. The "station" is the receiving/sending unit on a ship or shore facility. Each has its own identity and may be a member of a group identity. The group would be like a distribution list for multiple stations in one message. The page explains:

Groups of Ships
Group ship station call identities for calling simultaneously more than one ship use the format quot;>01M2I3D4X5X6X7X8X9, where the first figure is zero and X is any figure from 0 to 9. The MID represents only the territory or geographical area of the administration assigning the group ship station call identity and does not prevent group calls to fleets containing more than one ship nationality.
No process currently exists to assign non-federal group ship station identities. However, users having an MMSI assigned by FCC license, all of which have a trailing zero, may create a group identity by inserting a zero before the identity and removing the trailing zero (e.g. a user having an MMSI of 366123450 is allowed to use the group identity 036612345).

The U.S. Coast Guard group ship station call identity is 036699999.

— Preceding unsigned comment added by Palmeira (talk • contribs) 18:00, 3 February 2012 (UTC)[reply]

Revision as of 18:00, 3 February 2012 edit Palmeira (talk \| contribs) Extended confirmed users 7,761 edits →Notes: Answer ← Previous edit		Revision as of 18:01, 3 February 2012 edit undo SineBot (talk \| contribs) Bots 2,555,460 edits m Signing comment by Palmeira - "→Notes: Answer" Next edit →
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	''No process currently exists to assign non-federal group ship station identities. However, users having an MMSI assigned by FCC license, all of which have a trailing zero, may create a group identity by inserting a zero before the identity and removing the trailing zero (e.g. a user having an MMSI of 366123450 is allowed to use the group identity 036612345).''		''No process currently exists to assign non-federal group ship station identities. However, users having an MMSI assigned by FCC license, all of which have a trailing zero, may create a group identity by inserting a zero before the identity and removing the trailing zero (e.g. a user having an MMSI of 366123450 is allowed to use the group identity 036612345).''

	''The U.S. Coast Guard group ship station call identity is 036699999.''</blockquote>		''The U.S. Coast Guard group ship station call identity is 036699999.''</blockquote> <small><span class="autosigned">— Preceding [[Wikipedia:Signatures\|unsigned]] comment added by [[User:Palmeira\|Palmeira]] ([[User talk:Palmeira\|talk]] • [[Special:Contributions/Palmeira\|contribs]]) 18:00, 3 February 2012 (UTC)</span></small><!-- Template:Unsigned --> <!--Autosigned by SineBot-->