SMS rules for Guam
+671
Sender ID restrictions
| Alphanumeric sender ID | Supported |
|---|---|
| Foreign numeric sender ID | Supported |
| Local numeric sender ID | Supported |
| Generic sender ID prohibited | Yes, you can |
| Sender ID can be changed | No, you can't. |
| Virtual number required | Yes, you can |
| Marketing requires opt-in | Yes, you can |
| P2P prohibited | Yes, you can |
| Handset DLR unavailable | No, you can't. |
Content restrictions
| Category | Status | Notes |
|---|---|---|
| Gambling / Games | PROHIBITED | Detected from provider text: gambling, betting, casino |
| Political content | PROHIBITED | Detected from provider text: political |
| Religious content | PROHIBITED | Detected from provider text: religious |
| Marketing / Advertising | PROHIBITED | Detected from provider text: marketing, promotion |
Notes
Country: Guam (GU).
Guam is located in the Oceania region and has the country code 1671. When sending SMS messages to this region, there are specific guidelines to follow. Alphanumeric sender IDs are not allowed, but numeric sender IDs are supported. There is also the option to use toll-free numbers and dedicated short codes.
For marketing messages, it is important to obtain consent from recipients before sending any kind of traffic. Sending peer-to-peer (P2P) traffic is also prohibited. Content related to politics, religion, unsolicited promotion or gambling is not allowed. In addition to these specifications, our Acceptable Use Policy applies to all messages sent to Guam.
It is important to note that the rules for SMS messages can change and we strive to keep the information updated and correct. For further information or assistance, please feel free to contact our experts.
Guam is located in the Oceania region and has the country code 1671. When sending SMS messages to this region, there are specific guidelines to follow. Alphanumeric sender IDs are not allowed, but numeric sender IDs are supported. There is also the option to use toll-free numbers and dedicated short codes.
For marketing messages, it is important to obtain consent from recipients before sending any kind of traffic. Sending peer-to-peer (P2P) traffic is also prohibited. Content related to politics, religion, unsolicited promotion or gambling is not allowed. In addition to these specifications, our Acceptable Use Policy applies to all messages sent to Guam.
It is important to note that the rules for SMS messages can change and we strive to keep the information updated and correct. For further information or assistance, please feel free to contact our experts.
Last updated: April 20, 2026