St Pierre and Miquelon SMS Best Practices, Compliance, and Features

Sending SMS to St Pierre and Miquelon (+508) requires understanding French telecommunications regulations and ARCEP compliance requirements. This French territorial collectivity in North America operates under GDPR consent rules and Article L34-5 PECC for SMS marketing. With 5,819 inhabitants served by two mobile operators (SPM Telecom and Globaltel), the territory supports basic SMS functionality on 2G and 4G networks with MCC 308. This comprehensive guide covers everything developers and businesses need to send compliant SMS in St Pierre and Miquelon: ARCEP regulatory guidelines, consent and opt-out requirements, alphanumeric sender ID support, number portability via RIO, carrier-specific features, API integrations for Twilio, Sinch, MessageBird, and Plivo, plus penalties for non-compliance under French law.

Market Conditions: St Pierre and Miquelon is a small French territorial collectivity in North America with limited but stable SMS infrastructure. The territory has a population of 5,819 inhabitants (INSEE 2022 census, certified January 9, 2025). The archipelago primarily relies on French telecom standards and is served by two mobile operators: SPM Telecom (70% owned by Orange S.A. through Orange Caraïbe, operating since 1999) and Globaltel (competitor since October 2014). SMS remains widely used for business communications and notifications due to its reliability and universal reach, with network coverage including 2G and 4G on the GSM 900 MHz band. While OTT messaging apps are available, traditional SMS remains important for official communications.

What SMS Features Are Available in St Pierre and Miquelon?

St Pierre and Miquelon supports basic SMS functionality with some limitations on advanced features like two-way messaging and concatenation.

Two-way SMS Support

Two-way SMS is not supported in St Pierre and Miquelon according to current carrier configurations. You can only send outbound messages without the ability to receive replies through the same channel.

Concatenated Messages (Segmented SMS)

Support: Concatenated messages are not supported in St Pierre and Miquelon.

Message length rules: Standard SMS length limits apply – 160 characters for GSM-7 encoding.

Encoding considerations: Use GSM-7 encoding when possible to maximize your character limit. UCS-2 encoding reduces the character limit to 70 characters per message.

MMS Support

MMS messages are automatically converted to SMS with an embedded URL link. Any multimedia content you attempt to send will be delivered as a text message containing a link where recipients can view the content online.

Recipient Phone Number Compatibility

Number Portability

Number portability is available in St Pierre and Miquelon, following French telecommunications regulations overseen by ARCEP (Autorité de Régulation des Communications Électroniques et des Postes). Portability can only be exercised within the territory of St Pierre and Miquelon itself, as it is one of the 7 French territories with number portability provisions.

Portability Process:

• Request your RIO (Relevé d'Identité Opérateur) by calling 3179, common to all operators
• Receive RIO via voice server and SMS, along with contract termination details
• Provide RIO to your new operator (SPM Telecom or Globaltel)
• New operator handles termination with old operator (do not cancel your old subscription yourself)
• Switching typically completes within a few business days

Sending SMS to Landlines

Sending SMS to landline numbers is not possible in St Pierre and Miquelon. Attempts to send messages to landline numbers will result in a failed delivery with a 400 response error (code 21614), and no charges will be applied to your account.

ARCEP Compliance and SMS Regulations in St Pierre and Miquelon

As a French territorial collectivity, St Pierre and Miquelon follows French telecommunications regulations and GDPR guidelines for data privacy and SMS communications. The territory falls under the oversight of ARCEP (Autorité de Régulation des Communications Électroniques et des Postes), the French telecommunications regulatory authority. SMS marketing is governed by Article L34-5 of the French Postal and Electronic Communications Code (PECC), which requires prior opt-in consent.

Consent and Opt-In Requirements

Explicit Consent Requirements:

• Obtain written or electronic consent before sending marketing messages per Article L34-5 PECC
• Maintain and make consent records easily accessible
• Clearly state the purpose of messaging during opt-in
• Use double opt-in as a best practice for demonstrating valid consent (not legally required but strengthens proof of consent)
• Ensure consent is freely given, specific, and informed (not implied from conduct or pre-ticked boxes)

Best Practices for Documentation:

• Store timestamp and source of consent
• Maintain detailed records of opt-in methods
• Keep consent logs for minimum of 3 years per CNIL guidance (or until consent is withdrawn, whichever comes first)
• Conduct regular audits of consent database
• Ensure marketing list purchases contain only opt-in contacts with verifiable prior consent

HELP/STOP and Other Commands

• Honor STOP commands immediately when you receive them
• Important: With alphanumeric sender IDs (common in France), replying "STOP" will not opt users out since alphanumeric IDs cannot receive SMS replies
• Alternative opt-out methods required for alphanumeric sender IDs:
  • Click URL in message for unsubscribe
  • Customer care contact information
  • Email or web form for opt-out requests
• Support both French and English keywords where two-way messaging is available:
  • STOP/ARRÊT
  • AIDE/HELP
  • DÉSABONNER/UNSUBSCRIBE
• Send confirmation message when user opts out
• Process opt-out requests within 24 hours regardless of method

Do Not Call / Do Not Disturb Registries

While St Pierre and Miquelon doesn't maintain its own Do Not Call registry, you should:

• Maintain internal suppression lists
• Honor opt-out requests within 24 hours
• Regularly clean contact databases
• Document all opt-out requests with timestamps

Penalties for Non-Compliance:

• Up to €75,000 for natural persons (individuals)
• Up to €375,000 for legal entities (companies)
• GDPR-based sanctions up to 4% of total worldwide annual turnover or €20 million (whichever is higher)
• Since January 1, 2023, commercial canvassing platforms cannot contact individuals from numbers starting with "06" or "07" (personal mobile numbers)

Time Zone Sensitivity

St Pierre and Miquelon observes UTC-3 (PMST – Saint Pierre and Miquelon Standard Time) during winter and UTC-2 (PMDT – Saint Pierre and Miquelon Daylight Time) during summer months.

• Recommended Sending Hours: 8:00 AM to 8:00 PM local time
• Holiday Considerations: Respect French national holidays and local observances
• Emergency Messages: You can send these outside standard hours if urgent
• Time Zone Changes: Account for daylight saving transitions when scheduling your campaigns

Sender ID Types for St Pierre and Miquelon SMS

Alphanumeric Sender ID

Operator network capability: Supported with dynamic usage

Registration requirements: No pre-registration required

Sender ID preservation: Carriers generally preserve sender IDs but may modify them for security

Long Codes

Domestic vs. International:

• Domestic long codes are supported but not available through major providers
• International long codes are supported for cross-border messaging

Sender ID preservation: Carriers typically preserve original sender ID for international messages

Provisioning time: 1–2 business days for international numbers

Use cases: Transactional messaging, alerts, notifications

Short Codes

Support: Short codes are not supported in St Pierre and Miquelon

Provisioning time: N/A

Use cases: N/A

Content Restrictions and Industry Guidelines for SMS

Restricted Industries

• Gambling and betting services
• Adult content
• Cryptocurrency promotions
• Unauthorized financial services

Regulated Industries

• Banking requires additional verification
• Healthcare messages must maintain patient privacy
• Insurance services need clear disclaimers

Content Filtering

Known Carrier Rules:

• Use URLs from approved domains
• Avoid excessive capitalization
• Limit use of special characters
• Don't use misleading sender IDs

Anti-Spam Tips:

• Avoid common spam trigger words
• Maintain consistent sending patterns
• Use clear, straightforward language
• Include your company name in message

Best Practices for Sending SMS to St Pierre and Miquelon

Messaging Strategy

• Keep your messages under 160 characters
• Include clear call-to-action
• Personalize using recipient's name
• Maintain consistent brand voice

Sending Frequency and Timing

• Limit to 2–4 messages per month per recipient
• Respect local business hours
• Avoid sending during French holidays
• Space out bulk campaigns

Localization

• Primary language: French
• Consider bilingual messages (French/English)
• Use proper French character encoding
• Respect local cultural nuances

Opt-Out Management

• Process opt-outs within 24 hours
• Send confirmation of opt-out
• Maintain single opt-out list across campaigns
• Conduct regular audits of opt-out compliance

Testing and Monitoring

• Test your messages across major local carriers
• Monitor delivery rates daily
• Track engagement metrics
• Regularly test opt-out functionality

SMS API Integration for St Pierre and Miquelon (+508)

Twilio SMS API

Twilio provides robust SMS capabilities for St Pierre and Miquelon through their REST API. Authentication requires your Account SID and Auth Token.

import twilio from 'twilio';

// Initialize client with your credentials
const client = twilio(
  process.env.TWILIO_ACCOUNT_SID,    // Your Account SID
  process.env.TWILIO_AUTH_TOKEN      // Your Auth Token
);

// Function to send SMS to St Pierre and Miquelon
async function sendSMSToStPierre(
  to: string,
  message: string
): Promise<void&gt; {
  try {
    // Ensure number format starts with +508
    const formattedNumber = to.startsWith('+508') ? to : `+508${to}`;

    const response = await client.messages.create({
      body: message,
      to: formattedNumber,
      from: process.env.TWILIO_PHONE_NUMBER,  // Your Twilio number
      // Optional parameters for delivery tracking
      statusCallback: 'https://your-webhook.com/status'
    });

    console.log(`Message sent successfully: ${response.sid}`);
  } catch (error) {
    console.error('Error sending message:', error);
    throw error;
  }
}

Sinch SMS API

Sinch offers SMS services to St Pierre and Miquelon with REST API integration. Authentication uses Bearer token.

import axios from 'axios';

interface SinchSMSResponse {
  id: string;
  status: string;
}

class SinchSMSClient {
  private readonly baseUrl: string;
  private readonly apiToken: string;

  constructor(apiToken: string) {
    this.baseUrl = 'https://sms.api.sinch.com/xms/v1';
    this.apiToken = apiToken;
  }

  async sendSMS(to: string, message: string): Promise<SinchSMSResponse&gt; {
    try {
      const response = await axios.post(
        `${this.baseUrl}/batches`,
        {
          from: process.env.SINCH_SENDER_ID,
          to: [to],
          body: message
        },
        {
          headers: {
            'Authorization': `Bearer ${this.apiToken}`,
            'Content-Type': 'application/json'
          }
        }
      );

      return response.data;
    } catch (error) {
      console.error('Sinch SMS Error:', error);
      throw error;
    }
  }
}

MessageBird SMS API

MessageBird provides SMS connectivity to St Pierre and Miquelon through their REST API.

import messagebird from 'messagebird';

class MessageBirdClient {
  private client: any;

  constructor(apiKey: string) {
    this.client = messagebird(apiKey);
  }

  sendSMS(
    to: string,
    message: string,
    originator: string
  ): Promise<any&gt; {
    return new Promise((resolve, reject) =&gt; {
      this.client.messages.create({
        originator: originator,
        recipients: [to],
        body: message,
        // Optional parameters
        reportUrl: 'https://your-webhook.com/delivery-status'
      }, (err: any, response: any) =&gt; {
        if (err) {
          reject(err);
        } else {
          resolve(response);
        }
      });
    });
  }
}

Plivo SMS API

Plivo offers SMS capabilities for St Pierre and Miquelon with comprehensive delivery reporting.

import plivo from 'plivo';

class PlivoSMSClient {
  private client: any;

  constructor(authId: string, authToken: string) {
    this.client = new plivo.Client(authId, authToken);
  }

  async sendSMS(
    src: string,
    dst: string,
    text: string
  ): Promise<any&gt; {
    try {
      const response = await this.client.messages.create({
        src: src,  // Your Plivo number
        dst: dst,  // Destination number
        text: text,
        // Optional parameters
        url: 'https://your-webhook.com/status',
        method: 'POST'
      });

      return response;
    } catch (error) {
      console.error('Plivo Error:', error);
      throw error;
    }
  }
}

API Rate Limits and Throughput

• Default rate limit: 1 message per second
• Batch sending limit: 100 messages per request
• Daily sending quota: Based on account level

Strategies for Large-Scale Sending:

• Implement queuing system for high-volume campaigns
• Use batch APIs when available
• Add exponential backoff for retry logic
• Monitor throughput and adjust sending rates

Error Handling and Reporting

• Implement comprehensive logging
• Monitor delivery receipts
• Track common error codes:
  • 21614: Invalid number format
  • 30003: Carrier rejection
  • 30005: Queue overflow

Frequently Asked Questions About SMS in St Pierre and Miquelon

How do I format phone numbers for SMS in St Pierre and Miquelon?

Format St Pierre and Miquelon phone numbers using the +508 country code in E.164 format. The complete format is +508XXXXXX (6 digits after the country code). Always include the + prefix for international SMS delivery. The Mobile Country Code (MCC) is 308 with Mobile Network Codes (MNC) 01 for SPM Telecom and 02 for Globaltel. Most SMS APIs (Twilio, Sinch, MessageBird, Plivo) automatically handle number formatting when you provide the +508 prefix.

What are the ARCEP compliance requirements for SMS marketing in St Pierre and Miquelon?

ARCEP (Autorité de Régulation des Communications Électroniques et des Postes) oversees telecommunications compliance in St Pierre and Miquelon. You must obtain explicit opt-in consent per Article L34-5 of the French Postal and Electronic Communications Code (PECC) before sending marketing SMS. Keep consent records for 3 years minimum per CNIL guidance, ensure consent is freely given and not implied from pre-ticked boxes, and process opt-out requests within 24 hours. Penalties for non-compliance include up to €375,000 for companies and GDPR sanctions up to 4% of global turnover or €20 million.

Does St Pierre and Miquelon support number portability between carriers?

Yes, number portability is available in St Pierre and Miquelon following French telecommunications regulations. You can switch between SPM Telecom and Globaltel while keeping your number. Request your RIO (Relevé d'Identité Opérateur) by calling 3179 (common to all operators), receive your RIO via voice server and SMS, provide it to your new operator who will handle the switch, and avoid canceling your old subscription yourself. Switching typically completes within a few business days, and portability can only be exercised within the territory itself.

Can I use alphanumeric sender IDs for SMS in St Pierre and Miquelon?

Yes, alphanumeric sender IDs are supported in St Pierre and Miquelon with dynamic usage and no pre-registration required. Carriers generally preserve sender IDs but may modify them for security. However, with alphanumeric sender IDs, recipients cannot reply "STOP" to opt out since alphanumeric IDs cannot receive SMS replies. You must provide alternative opt-out methods including click URLs in messages, customer care contact information, or email/web form for opt-out requests. This is standard for French territories following ARCEP regulations.

What is the penalty for sending SMS without consent in St Pierre and Miquelon?

Sending SMS without proper consent in St Pierre and Miquelon results in severe penalties under French law. Natural persons (individuals) face fines up to €75,000, while legal entities (companies) face fines up to €375,000. Additional GDPR-based sanctions can reach 4% of total worldwide annual turnover or €20 million (whichever is higher). Since January 1, 2023, you cannot use numbers starting with "06" or "07" for commercial canvassing. ARCEP enforces these regulations strictly, and the CNIL (French Data Protection Authority) monitors GDPR compliance.

Which mobile carriers operate in St Pierre and Miquelon for SMS delivery?

Two mobile carriers operate in St Pierre and Miquelon: SPM Telecom (MNC 01) and Globaltel (MNC 02). SPM Telecom is 70% owned by Orange S.A. through Orange Caraïbe and has operated since 1999, providing 2G and 4G coverage on the GSM 900 MHz band. Globaltel entered the market in October 2014, ending SPM Telecom's monopoly. Both carriers support basic SMS functionality with limitations on two-way messaging and concatenated messages. The Mobile Country Code (MCC) for both carriers is 308.

How long must I keep SMS consent records in St Pierre and Miquelon?

You must keep SMS consent records for a minimum of 3 years per CNIL (French Data Protection Authority) guidance, or until consent is withdrawn, whichever comes first. Store the timestamp and source of consent, maintain detailed records of opt-in methods, and ensure records are easily accessible for regulatory audits. Under Article L34-5 PECC, consent records prove you obtained proper authorization before sending marketing messages. Regular audits of your consent database are recommended to maintain compliance with ARCEP regulations and avoid penalties up to €375,000 for companies.

Which SMS APIs work with St Pierre and Miquelon's +508 country code?

All major SMS APIs support St Pierre and Miquelon's +508 country code: Twilio, Sinch, MessageBird, and Plivo. These APIs use REST authentication (Account SID and Auth Token for Twilio, Bearer token for Sinch, API keys for MessageBird and Plivo) and handle E.164 number formatting automatically. When sending to +508 numbers, format as +508XXXXXX. Default rate limits are typically 1 message per second with batch sending up to 100 messages per request. All providers support delivery tracking, webhook callbacks for status updates, and comprehensive error handling for the St Pierre and Miquelon market.

Summary: Key Takeaways for St Pierre and Miquelon SMS

Key Takeaways:

• Always format numbers with +508 prefix in E.164 format
• Obtain explicit opt-in consent per ARCEP Article L34-5 PECC
• Maintain consent records for minimum 3 years per CNIL guidance
• Process opt-out requests within 24 hours
• Follow French GDPR compliance requirements
• Test thoroughly before large campaigns

Next Steps for Implementation:

1. Review ARCEP regulations (French telecom authority)
2. Implement proper consent management system
3. Set up delivery monitoring and webhook callbacks
4. Test with small user groups across both carriers (SPM Telecom and Globaltel)
5. Configure alternative opt-out methods for alphanumeric sender IDs

Additional Information:

• ARCEP Official Website - French telecommunications regulatory authority
• CNIL - French Data Protection Authority - GDPR compliance guidance
• Legifrance - French Legal Texts - Article L34-5 PECC reference

Related SMS Guides:

• France SMS Guide - Mainland France SMS regulations
• Martinique SMS Guide - Caribbean French territory
• French Guiana SMS Guide - South American French territory
• E.164 Phone Format Guide - International number formatting