Send SMS to Macao
from $0.0230/msg

Mobile Operators and Interconnect Routes

CTM (Companhia de Telecomunicações de Macau) – 45% market share: The dominant carrier and former monopoly holder. CTM numbers are widely distributed across all customer segments—personal, business, and enterprise. Direct interconnect available; routing is stable and reliable. CTM subscribers represent the largest addressable market for bulk SMS campaigns.

SmarTone Macau – 35% market share: The second-largest carrier, popular with younger demographics and business users. SmarTone maintains modern SMS infrastructure and typically achieves sub-60 ms delivery latency. Direct interconnect available; carrier-level sender ID registration required. SmarTone subscribers are often more engagement-responsive to promotional SMS, making this carrier valuable for conversion-focused campaigns.

China Unicom (Macau) – 20% market share: Primarily serving business and cross-border customers. China Unicom operates a stable SMS gateway and supports E.164 format natively. Direct interconnect available; sender ID registration may require additional compliance documentation due to China mainland regulations. This carrier is essential for enterprise and financial services use cases.

smsroute maintains direct routes to all three operators, ensuring nationwide coverage. Mobile numbers prefixed 6 or 9 (8 digits total, no leading 0) are distributed across these carriers; proper E.164 formatting (+853 XXXX XXXX) ensures correct routing. Load balancing and failover are automatic; no manual carrier selection is required.

Pricing: smsroute vs. Twilio, Vonage, MessageBird, Plivo, and Sinch

Macao SMS pricing varies significantly across providers. smsroute's direct operator routes and crypto-only model enable the lowest rates in the market.

At 1 million SMS/month to Macao, the cost difference is stark:

• smsroute: $23,000/month
• Twilio: $45,100/month (~$264,600 annual premium)
• Vonage: $38,300/month (~$181,800 annual premium)

Beyond price, smsroute offers immediate onboarding (no KYC delays), cryptocurrency payment (no banking regulations, no card chargebacks), and operator-direct routes (more reliable than aggregators). For fintech, crypto, and e-commerce use cases in Macao, smsroute is the clear choice.

Latency and Delivery Success Rates

smsroute's infrastructure in Macao is engineered for speed and reliability:

• P50 latency (median): 52 milliseconds
• P95 latency (95th percentile): 75 milliseconds
• Delivery success rate: 99.0%
• Network uptime: 99.9%

These metrics are achieved through direct operator interconnects with CTM, SmarTone Macau, and China Unicom. Unlike aggregators who route through multiple intermediaries, smsroute connects directly to each carrier's SMS Center (SMSC), eliminating relay delays and intermediate failure points. The 52 ms p50 latency means half of all messages arrive in under 52 milliseconds—ideal for time-sensitive transactional use cases (OTP, payment confirmations, delivery notifications).

The 99.0% delivery success rate accounts for legitimate rejections (invalid numbers, subscription blocks, spam filtering) and network timeouts. Failed messages are automatically retried with exponential backoff; you receive detailed failure codes (invalid number, user blacklisted, carrier offline, etc.) via the API or webhook, enabling you to troubleshoot and re-send as needed.

For high-volume senders (10 million+ messages/month), smsroute offers dedicated support and load-balancing optimization at no additional cost, ensuring your campaigns maintain sub-100 ms p95 latency even during peak traffic.

Law 8/2005/M: Consent Framework and Regulatory Compliance

Macao's Personal Data Protection Law (Law 8/2005/M) governs all marketing SMS. The framework is explicitly consent-first: you must obtain opt-in approval before sending any promotional, commercial, or announcement SMS to a subscriber. Transactional messages (order confirmations, password resets, delivery notifications) are exempt from prior consent, but they must be identifiable as system-generated and not contain secondary marketing.

Consent requirements: Marketing SMS require explicit, documented consent from the recipient. Consent must be recorded with the date, time, and means of capture (web form, in-app button, SMS opt-in reply). A soft opt-in is permitted for existing customers who have purchased or interacted with your service within the past 12 months, provided you offer a clear, easy opt-out mechanism in every message.

Opt-out mechanism: Every marketing SMS must include instructions to withdraw consent (e.g., "Reply STOP to unsubscribe"). Unsubscribe requests must be honored within 1 business day. DSRT (Direção dos Serviços de Regulação Telecomunicações—Telecommunications Regulatory Authority) monitors compliance through carrier reports and subscriber complaints. The regulator has published enforcement actions against major senders who ignore opt-out requests.

Sender ID registration: All marketing sender IDs (numeric 4–8 digit, or company name) must be registered with the carrier and notified to DSRT. Registration typically completes within 1–2 business days. Unregistered sender IDs will be rejected or flagged at delivery time. smsroute handles carrier registration on your behalf; provide your business name, contact details, and intended use case during account onboarding.

Quiet hours: Marketing SMS are restricted to 08:00–21:00 HKT (UTC+8, same as Hong Kong). Messages sent outside these hours will be queued or rejected. No promotional SMS on public holidays or weekends unless the recipient explicitly opts in. Always timestamp your campaigns in HKT, not UTC, to avoid compliance failures.

Frequently Asked Questions

Related

curl -X POST https://api.smsroute.cc/send \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "to": "+85369123456",
    "text": "Your verification code is 1234567.",
    "from": "YourBrand"
  }'

import smsroute

client = smsroute.Client(api_key="YOUR_API_KEY")

response = client.send_sms(
    to="+85369123456",
    text="Your verification code is 1234567.",
    from_="YourBrand"
)

print(f"Message ID: {response['message_id']}")
print(f"Status: {response['status']}")
print(f"Segments: {response['segments']}")

import fetch from "node-fetch";

const apiKey = process.env.SMSROUTE_API_KEY;

const res = await fetch("https://api.smsroute.cc/messages", {
  method: "POST",
  headers: {
    Authorization: `Bearer ${apiKey}`,
    "Content-Type": "application/json",
  },
  body: JSON.stringify({
    to: "+8535551234567",
    from: "smsroute",
    text: "Your verification code is 384921",
  }),
});

console.log(await res.json());