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Rootly On-Call uses Twilio to deliver SMS and phone call notifications to on-call responders. This page lists the countries where these notification methods are supported.
Deliverability is not guaranteed. Even in supported countries, messages and calls may fail to deliver due to carrier filtering, local regulations, or network issues. Push notifications via the Rootly mobile app are more reliable and recommended as your primary notification method.
Important considerations:
  • Local regulations: Many countries have strict telecom regulations that may affect message delivery, especially for A2P (Application-to-Person) messaging
  • Carrier filtering: Mobile carriers may filter or block messages from unknown or international senders
  • Number registration: Some countries require pre-registration of sender IDs or recipient numbers
  • Time-based restrictions: Certain countries restrict messaging during specific hours
  • Content filtering: Messages containing certain keywords may be blocked by local carriers

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SMS Notifications

SMS notifications can be sent to phone numbers in the following countries. Delivery rates vary by country and carrier.
CountryCode
Afghanistan+93
Albania+355
American Samoa+1
Andorra+376
Anguilla+1264
Antigua and Barbuda+1268
Argentina+54
Armenia+374
Aruba+297
Australia+61
Austria+43
Bahamas+1242
Bahrain+973
Barbados+1246
Belarus+375
Belgium+32
Belize+501
Benin+229
Bermuda+1441
Bhutan+975
Bolivia+591
Bosnia and Herzegovina+387
Botswana+267
Brazil+55
Brunei+673
Bulgaria+359
Burkina Faso+226
Cambodia+855
Cameroon+237
Canada+1
Cape Verde+238
Cayman Islands+1345
Central African Republic+236
Chad+235
Chile+56
China+86
Colombia+57
Comoros+269
Congo+242
Congo (DRC)+243
Cook Islands+682
Costa Rica+506
Croatia+385
Cuba+53
Cyprus+357
Czech Republic+420
Denmark+45
Djibouti+253
Dominica+1767
Dominican Republic+1829
Egypt+20
El Salvador+503
Equatorial Guinea+240
Eritrea+291
Estonia+372
Ethiopia+251
Faroe Islands+298
Fiji+679
Finland+358
France+33
French Guiana+594
French Polynesia+689
Gabon+241
Gambia+220
Georgia+995
Germany+49
Ghana+233
Gibraltar+350
Greece+30
Greenland+299
Grenada+1473
Guadeloupe+590
Guam+1671
Guatemala+502
Guinea+224
Guinea-Bissau+245
Guyana+592
Haiti+509
Honduras+504
Hong Kong+852
Hungary+36
Iceland+354
India+91
Indonesia+62
Iraq+964
Ireland+353
Israel+972
Italy+39
Ivory Coast+225
Jamaica+1876
Japan+81
Jordan+962
Kazakhstan+7
Kenya+254
Kiribati+686
Korea (South)+82
Kuwait+965
Kyrgyzstan+996
Laos+856
Latvia+371
Lebanon+961
Lesotho+266
Liberia+231
Libya+218
Liechtenstein+423
Lithuania+370
Luxembourg+352
Macao+853
Macedonia+389
Madagascar+261
Malawi+265
Malaysia+60
Maldives+960
Mali+223
Malta+356
Marshall Islands+692
Martinique+596
Mauritius+230
Mexico+52
Micronesia+691
Moldova+373
Monaco+377
Mongolia+976
Montenegro+382
Montserrat+1664
Morocco+212
Myanmar+95
Namibia+264
Nepal+977
Netherlands+31
Netherlands Antilles+599
New Caledonia+687
New Zealand+64
Nicaragua+505
Niger+227
Norway+47
Palau+680
Panama+507
Papua New Guinea+675
Paraguay+595
Peru+51
Philippines+63
Poland+48
Portugal+351
Puerto Rico+1787
Qatar+974
Reunion+262
Romania+40
Russia+7
Samoa+685
San Marino+378
Saudi Arabia+966
Serbia+381
Sierra Leone+232
Singapore+65
Solomon Islands+677
Spain+34
St Kitts and Nevis+1869
St Lucia+1758
St Pierre and Miquelon+508
St Vincent Grenadines+1784
Suriname+597
Swaziland+268
Sweden+46
Switzerland+41
Taiwan+886
Thailand+66
Tonga+676
Trinidad and Tobago+1868
Turkey+90
Turkmenistan+993
Turks and Caicos Islands+1649
Ukraine+380
United Arab Emirates+971
United Kingdom+44
United States+1
Uruguay+598
Vanuatu+678
Vietnam+84
Virgin Islands (British)+1284
Virgin Islands (U.S.)+1340
Yemen+967

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Phone Notifications

Phone call notifications can be made to phone numbers in the following countries. Call connection rates vary by country, carrier, and network conditions.
CountryCode
Afghanistan+93
Albania+355
American Samoa+1
Andorra+376
Anguilla+1264
Antigua and Barbuda+1268
Argentina+54
Armenia+374
Aruba+297
Australia+61
Austria+43
Bahamas+1242
Bahrain+973
Barbados+1246
Belarus+375
Belgium+32
Belize+501
Benin+229
Bermuda+1441
Bhutan+975
Bolivia+591
Bosnia and Herzegovina+387
Botswana+267
Brazil+55
Brunei+673
Bulgaria+359
Burkina Faso+226
Cambodia+855
Cameroon+237
Canada+1
Cape Verde+238
Cayman Islands+1345
Central African Republic+236
Chad+235
Chile+56
China+86
Colombia+57
Comoros+269
Congo+242
Congo (DRC)+243
Cook Islands+682
Costa Rica+506
Croatia+385
Cuba+53
Cyprus+357
Czech Republic+420
Denmark+45
Djibouti+253
Dominica+1767
Dominican Republic+1829
Egypt+20
El Salvador+503
Equatorial Guinea+240
Eritrea+291
Estonia+372
Ethiopia+251
Faroe Islands+298
Fiji+679
Finland+358
France+33
French Guiana+594
French Polynesia+689
Gabon+241
Gambia+220
Georgia+995
Germany+49
Ghana+233
Gibraltar+350
Greece+30
Greenland+299
Grenada+1473
Guadeloupe+590
Guam+1671
Guatemala+502
Guinea+224
Guinea-Bissau+245
Guyana+592
Haiti+509
Honduras+504
Hong Kong+852
Hungary+36
Iceland+354
India+91
Indonesia+62
Iraq+964
Ireland+353
Israel+972
Italy+39
Ivory Coast+225
Jamaica+1876
Japan+81
Jordan+962
Kazakhstan+7
Kenya+254
Kiribati+686
Korea (South)+82
Kuwait+965
Kyrgyzstan+996
Laos+856
Latvia+371
Lebanon+961
Lesotho+266
Liberia+231
Libya+218
Liechtenstein+423
Lithuania+370
Luxembourg+352
Macao+853
Macedonia+389
Madagascar+261
Malawi+265
Malaysia+60
Maldives+960
Mali+223
Malta+356
Marshall Islands+692
Martinique+596
Mauritius+230
Mexico+52
Micronesia+691
Moldova+373
Monaco+377
Mongolia+976
Montenegro+382
Montserrat+1664
Morocco+212
Myanmar+95
Namibia+264
Nepal+977
Netherlands+31
Netherlands Antilles+599
New Caledonia+687
New Zealand+64
Nicaragua+505
Niger+227
Norway+47
Palau+680
Panama+507
Papua New Guinea+675
Paraguay+595
Peru+51
Philippines+63
Poland+48
Portugal+351
Puerto Rico+1787
Qatar+974
Reunion+262
Romania+40
Russia+7
Samoa+685
San Marino+378
Saudi Arabia+966
Serbia+381
Sierra Leone+232
Singapore+65
Solomon Islands+677
Spain+34
St Kitts and Nevis+1869
St Lucia+1758
St Pierre and Miquelon+508
St Vincent Grenadines+1784
Suriname+597
Swaziland+268
Sweden+46
Switzerland+41
Taiwan+886
Thailand+66
Tonga+676
Trinidad and Tobago+1868
Turkey+90
Turkmenistan+993
Turks and Caicos Islands+1649
Ukraine+380
United Arab Emirates+971
United Kingdom+44
United States+1
Uruguay+598
Vanuatu+678
Vietnam+84
Virgin Islands (British)+1284
Virgin Islands (U.S.)+1340
Yemen+967
If your country is not listed or you’re experiencing delivery issues, please contact support for assistance.

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Troubleshooting

If you’re not receiving SMS or phone notifications:
  1. Verify phone number format: Ensure your phone number is entered correctly with the full country code (e.g., +1 for US, +44 for UK)
  2. Check notification settings: Confirm notifications are enabled in your user profile
  3. Review carrier settings: Your mobile carrier may be blocking messages from unknown or international numbers
  4. Check Do Not Disturb: Ensure your phone’s DND settings aren’t blocking calls from unknown numbers
  5. Verify network connectivity: Poor cellular coverage can prevent message and call delivery

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Common delivery issues by region

High-risk countries for SMS delivery: Some countries have particularly strict filtering that may result in low delivery rates. Consider using phone calls or alternative notification methods (Slack, email, push notifications) as your primary contact method in these regions.
RegionCommon Issues
Asia PacificStrict sender ID registration requirements, content filtering
Middle EastGovernment-level filtering, restricted international messaging
AfricaNetwork infrastructure limitations, carrier filtering
Latin AmericaSender ID requirements, variable carrier support
EuropeGDPR compliance requirements, sender verification

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Best practices

  • Use push notifications as primary: Push notifications via the Rootly mobile app are more reliable than SMS/phone and work globally without carrier restrictions
  • Configure multiple notification methods: Set up backup notification channels (email, Slack) in addition to push notifications
  • Use escalation policies: Ensure your on-call schedules have proper escalation to catch missed notifications
  • Test notifications: Periodically test your notification settings to ensure they’re working
  • Keep contact info updated: Ensure phone numbers are current and properly formatted
For persistent issues, contact Rootly Support.