SMS & Voice APIs · reliability comparison
AWS End User Messaging vs Telesign: which is more reliable? (2026)
AWS End User Messaging is more reliable than Telesign, scoring 100.0 vs 89.4 out of 100. Over the last 90 days AWS End User Messaging reported 0 incidents and Telesign reported 8, with effective uptime of 100% and 99.91% respectively.
Data updated Nov 1, 2026 · How we score
| Metric | AWS End User Messaging | Telesign |
|---|---|---|
| Reliability score | 100.0 | 89.4 |
| Rank (SMS & voice APIs) | — | #3 |
| Uptime (90 days) | 100% | 99.91% |
| Incidents (90 days) | 0 | 8 |
| Partial / major outages | 0 | 1 |
| Avg time to resolve | — | 1h 27m |
| Outages we detected | 0 | 0 |
| Transparency score | 100/100 | 100/100 |
Where AWS End User Messaging and Telesign differ
- AWS End User Messaging reported no incidents in the last 90 days, while Telesign reported 8.
- Telesign had 1 partial or major outage, compared with 0 for AWS End User Messaging.
90-day uptime
AWS End User Messaging
Telesign
- No incidents
- Degraded
- Partial outage
- Major outage
- No data
Recent AWS End User Messaging incidents
No incidents reported by AWS End User Messaging in the last 90 days.
Recent Telesign incidents
- InformationalOct 22, 2026 · resolved in 4m
Affected: Verify API
- InformationalOct 21, 2026 · resolved in <1m
Affected: Voice, Voice verify
- InformationalOct 17, 2026 · resolved in <1m
Affected: Phone ID, SMS, SMS Verify
- Degraded performanceOct 16, 2026 · resolved in 22m
Affected: Intelligence, Phone ID, Phone ID Contact, Phone ID Live, Phone ID Number deactivation, Phone ID Porting status +3 more
- MaintenanceOct 15, 2026 · resolved (duration not published)
[Scheduled] Regulatory Update 📢 Australia and ACMA's SMS Sender ID Register - May 2026
- InformationalOct 14, 2026 · resolved in 28m
Affected: EMEA - All countries, APAC - All countries, NA & LATAM - All countries
Other SMS & voice APIs to consider
- Plivo · #1 · 100% uptime
- SignalWire · #2 · 99.94% uptime
- Textmagic · #4 · 99.82% uptime
- Africa's Talking · #5 · 99.80% uptime