Strange Signal Code from AT&T- seen it before?

Discussion in 'iPhone' started by jshort, Jan 6, 2012.

  1. jshort macrumors regular

    Joined:
    Jun 8, 2009
    #1
    Hey guys.. check out the top left of this screen shot. On occasion, I've seen this for about a second when I turn my iPhone 4S on and finally was fast enough to snap a screen shot. Anybody know what this means? It's quickly replaced by an AT&T logo..
     

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  2. dffdce macrumors member

    Joined:
    Jun 30, 2010
    #2
    Yeah I've seen that too. Not sure why we're seeing it but FWIW 310 is a United States Mobile Country Code (MCC) and 410 is one of AT&T's Mobile Network Codes (MNC).
     
  3. TBONE72 macrumors regular

    Joined:
    Sep 25, 2007
    #3
    Do you have your SIM card locked? I recently put a lock code on mine and now see the same thing prior to unlocking the SIM after a power-on. I think it's related to that.
     
  4. scaredpoet macrumors 604

    scaredpoet

    Joined:
    Apr 6, 2007
    #4
    There's been other posts about this. For some people the MCC-MNC shows up for a brief second. This is the numeric carrier code for AT&T's network. Every GSM carrier has one (or several). The 4S, for some reason, takes a bit longer to look up the name of the network and replaces the MCC-MNC with the name (AT&T).
     
  5. Stealthipad macrumors 68040

    Stealthipad

    Joined:
    Apr 30, 2010
    #5
    It must only take this additional time in only some areas as I have never seen this come up on my screen.
     
  6. diamond.g macrumors 603

    diamond.g

    Joined:
    Mar 20, 2007
    Location:
    Virginia
    #6
    I saw it this morning after a reboot when my phone decided it didn't want to use a 3G connection. I knew what it was, but had never seen the lookup take that long before.
     
  7. scaredpoet macrumors 604

    scaredpoet

    Joined:
    Apr 6, 2007
    #7
  8. ahfu25 macrumors 6502a

    Joined:
    Dec 28, 2009
    #8

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