SMS rules for Montserrat
+473
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: Montserrat (MS)
Montserrat is part of the North American Numbering System (NANP) and has the country code 1664. When sending SMS messages to Montserrat, there are specific guidelines to follow. Alphanumeric sender IDs are supported, while numeric sender IDs can only be used if they are part of a two-way service. Generic sender IDs such as INFO, SMS, NOTICE, etc. are not allowed.
In order to send marketing messages, prior consent from the recipients is required. It is important to note that person-to-person (P2P) traffic is prohibited and no content related to politics, religion, unsolicited advertising or gambling may be sent. In addition, the general guidelines in our Acceptable Use Policy apply.
We strive to keep the information updated and correct, but please be aware that the rules for SMS messages may change. To ensure that you comply with the current regulations, it is recommended to consult an expert.
Montserrat is part of the North American Numbering System (NANP) and has the country code 1664. When sending SMS messages to Montserrat, there are specific guidelines to follow. Alphanumeric sender IDs are supported, while numeric sender IDs can only be used if they are part of a two-way service. Generic sender IDs such as INFO, SMS, NOTICE, etc. are not allowed.
In order to send marketing messages, prior consent from the recipients is required. It is important to note that person-to-person (P2P) traffic is prohibited and no content related to politics, religion, unsolicited advertising or gambling may be sent. In addition, the general guidelines in our Acceptable Use Policy apply.
We strive to keep the information updated and correct, but please be aware that the rules for SMS messages may change. To ensure that you comply with the current regulations, it is recommended to consult an expert.
Last updated: April 20, 2026