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iD Mobile MMS Settings

📅 Last updated: 17 May 2026

iD Mobile MMS settings UK: MMSC, proxy and port values for picture messages. Fix MMS not working on Android and iPhone.

iD Mobile MMS Settings — UK APN Hub guide
Setting Value
APN Nameid
Username(leave blank)
Password(leave blank)
MMSChttp://mms.three.co.uk
MMS Proxy193.113.200.195
MMS Port8799
Authentication TypeNone
APN Typedefault,supl,mms
!
Common MMS mistakes that stop picture messages working
• The MMSC URL must begin with http:// — never https://
• The MMS Proxy field is an IP address only — no http:// prefix
• APN Type must contain mms (e.g. default,supl,mms)
• On Android, save then select the profile before testing

What are iD Mobile MMS settings?

MMS (Multimedia Messaging Service) lets you send picture messages, video clips and audio files as text messages. To send and receive MMS on iD Mobile, your phone needs the correct MMSC address, MMS proxy and MMS port values configured in the APN settings. Without these, picture messages may fail to send, download or appear as empty boxes.

MMS Picture Message Settings — Key Fields Explained Field → Value APN id (same as internet APN) MMSC http://mms.three.co.uk/mms/wapenc (starts with http://) MMS Proxy mms.three.co.uk (IP only, no http) MMS Port 8799 APN Type default,supl,mms Common mistakes that break MMS ✗ MMSC written as https:// instead of http:// ✗ MMS Proxy has http:// prefix (remove it) ✗ APN Type missing "mms" in the list ✗ Profile saved but not selected (no filled dot) ✗ Phone not restarted after saving ✗ Mobile data disabled while sending MMS

Enter MMS fields exactly as shown — the MMSC must start with http:// not https://

!
Common MMS mistakes that stop picture messages working
• The MMSC URL must begin with http:// — never https://
• The MMS Proxy field is an IP address only — no http:// prefix
• APN Type must contain mms (e.g. default,supl,mms)
• On Android, save then select the profile before testing

How to configure MMS settings on Android

Go to Settings → Connections → Mobile Networks → Access Point Names. Tap your existing iD Mobile APN or create a new one. Fill in the MMSC field, the MMS Proxy field, and the MMS Port field with the iD Mobile values. Make sure the APN Type field includes mms (for example: default,supl,mms). Save and restart.

MMS Picture Message Settings — Key Fields Explained Field → Value APN id (same as internet APN) MMSC http://mms.three.co.uk/mms/wapenc (starts with http://) MMS Proxy mms.three.co.uk (IP only, no http) MMS Port 8799 APN Type default,supl,mms Common mistakes that break MMS ✗ MMSC written as https:// instead of http:// ✗ MMS Proxy has http:// prefix (remove it) ✗ APN Type missing "mms" in the list ✗ Profile saved but not selected (no filled dot) ✗ Phone not restarted after saving ✗ Mobile data disabled while sending MMS

Enter MMS fields exactly as shown — the MMSC must start with http:// not https://

!
Common MMS mistakes that stop picture messages working
• The MMSC URL must begin with http:// — never https://
• The MMS Proxy field is an IP address only — no http:// prefix
• APN Type must contain mms (e.g. default,supl,mms)
• On Android, save then select the profile before testing

How to configure MMS settings on iPhone

On iPhone, MMS settings are part of the mobile data network settings at Settings → Mobile Data → Mobile Data Network. Scroll down to the MMS section and enter the iD Mobile MMSC, MMS Proxy and MMS Max Message Size values. Tap the back arrow to save.

If the MMS section is missing on iPhone, go to Settings → Messages and make sure MMS Messaging is toggled on. If it remains greyed out, your iPhone carrier bundle may need updating — contact iD Mobile.

MMS Picture Message Settings — Key Fields Explained Field → Value APN id (same as internet APN) MMSC http://mms.three.co.uk/mms/wapenc (starts with http://) MMS Proxy mms.three.co.uk (IP only, no http) MMS Port 8799 APN Type default,supl,mms Common mistakes that break MMS ✗ MMSC written as https:// instead of http:// ✗ MMS Proxy has http:// prefix (remove it) ✗ APN Type missing "mms" in the list ✗ Profile saved but not selected (no filled dot) ✗ Phone not restarted after saving ✗ Mobile data disabled while sending MMS

Enter MMS fields exactly as shown — the MMSC must start with http:// not https://

💡
Fastest way to apply new APN settings
After saving, turn aeroplane mode ON for 10 seconds, then turn it OFF. This forces an immediate network re-registration — quicker than a full restart and equally effective.

Troubleshooting iD Mobile MMS problems

Picture messages not sending: Check that mobile data is turned on (MMS requires mobile data even on Wi-Fi). Verify the MMSC address and MMS proxy are correctly entered. Make sure the APN type includes mms.

Picture messages not downloading: Tap the message to manually trigger a download. Check your mobile data is enabled. Some messaging apps require you to enable Auto-retrieve MMS in their settings.

MMS working but blurry: This is usually an issue with the sending device compressing the image. Ask the sender to use a different messaging app. WhatsApp or iMessage may give better quality for image sharing.

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Troubleshooting — Try Steps in This Exact Order STEP 1 Toggle Aeroplane Mode STEP 2 Full Restart your phone STEP 3 Delete & re-enter APN from scratch STEP 4 Reset Network Settings ⚠ STEP 5 Contact Network Support ⚠ Step 4 (Reset Network Settings) will delete: • All saved Wi-Fi passwords • All Bluetooth pairings and VPN configurations Note your Wi-Fi passwords before using this step. 💡 Most issues are caused by: • Wrong APN text (one typo stops everything) • APN saved but not selected (no filled circle) • Phone not restarted / aeroplane mode not toggled

Follow these steps in order — most issues are resolved by step 1 or 2

MMS on iD Mobile vs iMessage/WhatsApp

Standard MMS is limited in file size (usually 300KB to 1MB) and compresses images heavily. For high-quality photo and video sharing, use iMessage (iPhone to iPhone), WhatsApp, or Google Messages with RCS enabled. These apps send over internet data and do not use MMS compression.

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Frequently Asked Questions

Why are my iD Mobile MMS not sending?

iD Mobile MMS messages may fail to send if the MMS APN settings are missing or incorrect. Check the MMSC, MMS Proxy and Port values in your settings match the iD Mobile values shown above.

Do I need mobile data to send MMS on iD Mobile?

Yes, MMS picture messages require mobile data to send and receive, even if you are connected to WiFi. Make sure mobile data is enabled when sending MMS on iD Mobile.

What is the iD Mobile MMSC address?

The iD Mobile MMSC address is listed in the APN settings table above. Enter it exactly as shown, including the http:// prefix and port number if required.

Why are MMS settings greyed out on my phone?

MMS settings may be greyed out because your carrier has locked the APN settings. Contact iD Mobile to request an APN unlock, or try inserting the SIM into another compatible device.

Can I receive MMS without setting up the APN on iD Mobile?

On most modern phones, iD Mobile MMS settings are configured automatically. If MMS is not working, manually enter the MMSC, Proxy and Port values from the table above.