I have a Samsung Galaxy Ace, with quad-band I believe. It is possible to see the current connection network type, e.g. UMTS, EDGE, etc, by going to Settings -> About Phone -> Status. But it does not tell which frequency band it is on. Is it possible to find out which frequency band (either exactly, or just which of the four major bands) that I am using?


Based on avirk's hint, I found a way. First press the code *#0011#

GSM example:

T: 10, B: 10
Rx Pwr: -94, Rx ual: -
Rx Lev: 21, Tx Lev: 0-
VOC: AdaptiveRate
TS: 0
Temp: 68 Batt: 71 LNA: 0
Service: Available

It is obvious that it's using 900MHz band, from the "GSM900".

UMTS WCDMA example:

Rx CH: 10612, R: -94
Tx CH: 9662, Tx Pwr: -
EdIo: -6, RSCP: -98
RF: Sleep2
L1: PCH_Sleep
Drx cycle: 64, PSC: 392
Temp: 67 Batt: 69 LNA: 0
Service: Available

UMTS can use two different physical layers (low level radio) UMTS-FDD and UMTS-TDD. Android just shows WCDMA, which I think is the same as UMTS-FDD, but perhaps it can refer to both of them. By looking up the channel number here you can tell the frequency bands and whether it is UMTS-FDD or UMTS-TDD.

In the above example it is using UMTS-FDD, the down-link channel (Rx) is in the 2100MHz band and the up-link channel (Tx) is in the 1900MHz band.

  • 7
    Is the code carrier or country related, because here it just says "Connection problem or invalid MMI code." – Peter Raeves Aug 2 '14 at 8:57

You can try dialing


and then going to "Phone Information".

enter image description here

That will show details about the network like cell tower ID and network type. As you can see from the below screenshot, it shows "EDGE" mode :-

enter image description here

Also, this may only work on stock Android builds.

  • Not working on my Galaxy S.. – user3303 May 29 '12 at 14:52
  • You've missed the * on both sides.. – user3303 May 29 '12 at 14:58
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    BTW, there's no info about frequency band even there... – user3303 May 29 '12 at 14:58
  • Edited and made corrections to the code.. try it now, @SachinShekhar ; afaik, It works on all ROMs – Irfan May 30 '12 at 8:36
  • Yes, it works, but not without * on both sides.. – user3303 May 30 '12 at 9:46

LTE Discovery app tells this for 4G/LTE.


  • It requires rooting… – user2284570 Feb 14 '19 at 21:48
  • My phone isn't rooted. – kiradotee Feb 14 '19 at 22:03
  • It doesn't require rooting for this function – Suncatcher Dec 17 '19 at 16:25

Have you tried using MTK engineering tool? It works pretty well for most android phones i've come across as it also shows you the current 4G bands.

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