Required MCC/MNC APN settings, not available in FP6+e/OS3.4 settings; where are they?

i’ve FP6 + e/OS 3.4

setting up different US Carrier/MVNO eSIMs, i’m configuring APNs.

a ‘clean/new’ APN template includes:

Name: (blank)
APN: (blank)
Proxy: (blank)
Port: (blank)
Username: (blank)
Password: (blank)
Server: (blank)
APN type: 'default, mms, supl, hipri, fota, cbs, xcap, ims'
MMSC: (blank)
MMS proxy: (blank)
MMS port: (blank)
Authentication type: (unselected)
APN protocol:  (unselected)
APN roaming protocol:  (unselected)
Network type: 'Unspecified'

the “advised” specifics from each carrier seem to vary a bit.

but each / every one advises to explicitly set “MCC” & “MNC”.

neither of those settings appear in the default APN template, above.
they are certainly available on other phones/ROMs.

How/where are MCC/MNC set on the FP6 + e/OS 3.4 ?

Every carrier has a ‘how to add APN support page’. Look it up there.

The apn system changed for AOSP towards the end of 2025. It is the case that my APN on phones working correctly no longer contain these numbers which used to be essential.

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Every carrier has a ‘how to add APN support page’. Look it up there.

the question was where – in the phone’s setting – to set it ? not what value to set it to.

It is the case that my APN on phones working correctly no longer contain these numbers which used to be essential.

noted, thx.

i’d guess, then, that the MCC/MNC values are buried somewhere in the config.
not sure yet where to confirm that … logcat trace of the radio subsys, perhaps?

In Settings > Search facility > Access Point Names.

If you just want to see the current MCC/MNC values, you can:

  • dial *#*#INFO#*#* (with SIM/eSIM enabled and connected to network), and scroll all the way down,

  • or install the Network app from F-Droid, which is just a shortcut to *#*#INFO#*#*,

  • or probably use adb shell to find the file that has the setting. (I haven’t actually done this myself, so I’m not sure of the actual location in the file system.)

I imagine the MCC/MNC codes are simply populated (somewhere) in the system, based on the network identity from the SIM/eSIM, so it may not be necessary for the user to enter them manually.

Still… It seems stupid if they’ve now been removed from Android APN settings.

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@aibd

In Settings > Search facility > Access Point Names.

nope. not there. that’s the point.

@Taurus

adb shell

i was doing that … but this

*#*#INFO#*#*

is far simpler. thx for the pointer to scroll ALL the way down :person_facepalming: – I’ve looked there counteless times for other stuff. didn’t notice the MNC/MCC!

which, fwiw, are in fact correct for my Carrier.

I imagine the MCC/MNC codes are simply populated (somewhere) in the system,
based on the network identity from the SIM/eSIM, so it may not be necessary for the user to enter them manually.

seems the case.

you’d kinda hope that the carriers would be aware – and stop insisting that the values MUST be manually set by the user (clearly, NOT the case)

Still… It seems stupid if they’ve now been removed from Android APN settings.

+1 !

EDIT:
this seems to be the relevant change:

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