SMS & Voice APIs · reliability comparison
Kaleyra vs Telesign: which is more reliable? (2026)
Kaleyra is more reliable than Telesign, scoring 100.0 vs 89.4 out of 100. Over the last 90 days Kaleyra 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 | Kaleyra | 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 Kaleyra and Telesign differ
- Kaleyra reported no incidents in the last 90 days, while Telesign reported 8.
- Telesign had 1 partial or major outage, compared with 0 for Kaleyra.
- Kaleyra's longest outage on record lasted 4h 50m (Jul 1, 2026); Telesign's lasted 3h 36m (Oct 3, 2026).
90-day uptime
Kaleyra
Telesign
- No incidents
- Degraded
- Partial outage
- Major outage
- No data
Recent Kaleyra incidents
No incidents reported by Kaleyra 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