SMS & Voice APIs · reliability comparison
Telesign vs Twilio: which is more reliable? (2026)
Telesign is more reliable than Twilio, scoring 89.4 vs 30.6 out of 100. Over the last 90 days Telesign reported 8 incidents and Twilio reported 101, with effective uptime of 99.91% and 96.02% respectively. Telesign resolves incidents faster on average (1h 27m).
Data updated Nov 1, 2026 · How we score
| Metric | Telesign | Twilio |
|---|---|---|
| Reliability score | 89.4 | 30.6 |
| Rank (SMS & voice APIs) | #2 | #10 |
| Uptime (90 days) | 99.91% | 96.02% |
| Incidents (90 days) | 8 | 101 |
| Partial / major outages | 1 | 0 |
| Avg time to resolve | 1h 27m | 8h 11m |
| Outages we detected | 0 | 0 |
| Transparency score | 100/100 | 100/100 |
Where Telesign and Twilio differ
- Twilio reported 12.6× as many incidents as Telesign over the last 90 days (101 vs 8).
- Telesign had 1 partial or major outage, compared with 0 for Twilio.
- Telesign fixes problems faster: 1h 27m on average, against 8h 11m for Twilio (5.6× quicker).
- Telesign's longest outage on record lasted 3h 36m (Oct 3, 2026); Twilio's lasted 3d (Sep 4, 2026).
90-day uptime
Telesign
Twilio
- No incidents
- Degraded
- Partial outage
- Major outage
- No data
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
Recent Twilio incidents
- MaintenanceNov 1, 2026 · resolved (duration not published)
[Scheduled] Philippines SMS Carrier Maintenance - Globe Telecom
- MaintenanceOct 30, 2026 · resolved in 2h
- MaintenanceOct 30, 2026 · resolved in 3h 46m
[Scheduled] Multiple Destination MMS Carrier Partner Maintenance
- MaintenanceOct 29, 2026 · resolved in 5h
- MaintenanceOct 29, 2026 · resolved in 1h 30m
- MaintenanceOct 29, 2026 · resolved in 3h 58m
Other SMS & voice APIs to consider
- Plivo · #1 · 100% uptime
- Textmagic · #3 · 99.82% uptime
- Africa's Talking · #4 · 99.80% uptime
- Infobip · #5 · 99.73% uptime