OnePlus 8 and 8 Pro

Data is taken from OnePlus 8 11.0.6.6 Carrier Policy files. All OnePlus Unlocked models share same modem configurations but hardware supported combinations are different.

Check in cacombos.com site supported combinations:

8-model:

8 Pro-model:

Asia

Hong Kong

Provider 5G NSA Bands 5G SA Bands DSS enabled 5G Roaming Networks
3 n78, n79   false  
China Mobile HK n78, n79   false  
HKT n78, n79   false  
Smartone n78, n79   false  

Thailand

Provider 5G NSA Bands 5G SA Bands DSS enabled 5G Roaming Networks
AIS n40   false  

Singapore

Provider 5G NSA Bands 5G SA Bands DSS enabled 5G Roaming Networks
M1 n1   true  
Singtel n1, n78   true  
Starhub n1   true  

Vietnam

Provider 5G NSA Bands 5G SA Bands DSS Enabled 5G Roaming Networks
Viettel n41, n78   false  
Vinaphone n41, n78   false  

Europe

Austria

Provider 5G NSA Bands 5G SA Bands DSS enabled 5G Roaming Networks
A1 n78   false  
Magenta n1, n3, n28, n78   true MCC: 232 204 262 216 260 231 219 202 230

Belgium

Provider 5G NSA Bands 5G SA Bands DSS enabled 5G Roaming Networks
Proximus n1   true  

Czech

Provider 5G NSA Bands 5G SA Bands DSS enabled 5G Roaming Networks
T-Mobile n1, n3, n28, n78   true MCC: 232 204 262 216 260 231 219 202 230

Denmark

Provider 5G NSA Bands 5G SA Bands DSS enabled 5G Roaming Networks
3 n3, n78   true  
Telenor n78   false  
TDC n28, n78   true  
Telia n1, n3, n7, n28, n78   true MCC: 240 242 244 248 246

Estonia

Provider 5G NSA Bands 5G SA Bands DSS enabled 5G Roaming Networks
Telia n1, n3, n7, n28, n78   true MCC: 240 242 244 248 246

Finland

Provider 5G NSA Bands 5G SA Bands DSS enabled 5G Roaming Networks
DNA n78   false  
Elisa n78   false  
Telia n1, n3, n7, n28, n78   true MCC: 240 242 244 248 246

France

Provider 5G NSA Bands 5G SA Bands DSS enabled 5G Roaming Networks
Bouygues n1, n3, n28, n78   true  
Free n3, n28, n78   true  

Germany

Provider 5G NSA Bands 5G SA Bands DSS enabled 5G Roaming Networks
Telekom n1, n3, n28, n78   true MCC: 232 204 262 216 260 231 219 202 230
Vodafone n78   false  

Italy

Provider 5G NSA Bands 5G SA Bands DSS enabled 5G Roaming Networks
TIM n78   false  
Vodafone n78   false  

Lithuania

Provider 5G NSA Bands 5G SA Bands DSS enabled 5G Roaming Networks
Telia n1, n3, n7, n28, n78   true MCC: 240 242 244 248 246

Ireland

Provider 5G NSA Bands 5G SA Bands DSS enabled 5G Roaming Networks
Nova n78   false  

Netherlands

Provider 5G NSA Bands 5G SA Bands DSS enabled 5G Roaming Networks
KPN n1, n28   true  
Tele2 n1, n3, n28, n78   true  
T-Mobile n1, n3, n28, n78   true MCC: 232 204 262 216 260 231 219 202 230
Vodafone n3   true  

Norway

Provider 5G NSA Bands 5G SA Bands DSS enabled 5G Roaming Networks
Telenor n28, n78   false  
Telia n1, n3, n7, n28, n78   true MCC: 240 242 244 248 246

Poland

Provider 5G NSA Bands 5G SA Bands DSS enabled 5G Roaming Networks
Play n1   true  
T-Mobile n1, n3, n28, n78   true MCC: 232 204 262 216 260 231 219 202 230

Romania

Provider 5G NSA Bands 5G SA Bands DSS enabled 5G Roaming Networks
Orange n1, n78   true  

Spain

Provider 5G NSA Bands 5G SA Bands DSS enabled 5G Roaming Networks
Vodafone n78   false  

Sweden

Provider 5G NSA Bands 5G SA Bands DSS enabled 5G Roaming Networks
3 n1, n3, n7, n78   true  
Tele2 n78   false  
Telenor n28, n78   true  
Telia n1, n3, n7, n28, n78   true MCC: 240 242 244 248 246

Swizerland

Provider 5G NSA Bands 5G SA Bands DSS Enabled 5G Roaming Networks
Sunrise n78   false  

United Kingdom

Provider 5G NSA Bands 5G SA Bands DSS enabled 5G Roaming Networks
3 n78   false  
EE n78   false  
O2 n78   false  
Vodafone n78   false  

Middle East

Israel

Provider 5G NSA Bands 5G SA Bands DSS enabled 5G Roaming Networks
Cellcom n78   false  
Hotmobile n1, n3, n7, n28, n78   true  
Partner n78   false  
Pelephone n28, n78   true  

Kuwait

Provider 5G NSA Bands 5G SA Bands DSS enabled 5G Roaming Networks
Ooredoo n78   false  
SCT n78   false  
Zain n78   false