SMS & Voice APIs · reliability comparison
Plivo vs Telesign: which is more reliable? (2026)
Plivo is more reliable than Telesign, scoring 99.6 vs 89.4 out of 100. Over the last 90 days Plivo reported 1 incident and Telesign reported 8, with effective uptime of 100% and 99.91% respectively.
Data updated Nov 1, 2026 · How we score
| Metric | Plivo | Telesign |
|---|---|---|
| Reliability score | 99.6 | 89.4 |
| Rank (SMS & voice APIs) | #1 | #2 |
| Uptime (90 days) | 100% | 99.91% |
| Incidents (90 days) | 1 | 8 |
| Partial / major outages | 0 | 1 |
| Avg time to resolve | — | 1h 27m |
| Outages we detected | 0 | 0 |
| Transparency score | 100/100 | 100/100 |
Where Plivo and Telesign differ
- Telesign reported 8× as many incidents as Plivo over the last 90 days (8 vs 1).
- Telesign had 1 partial or major outage, compared with 0 for Plivo.
- Plivo's longest outage on record lasted 2h 10m (Jul 11, 2026); Telesign's lasted 3h 36m (Oct 3, 2026).
90-day uptime
Plivo
Telesign
- No incidents
- Degraded
- Partial outage
- Major outage
- No data
Recent Plivo incidents
- InformationalAug 25, 2026 · resolved in 6h 51m
Voice Call Webhook Delivery Degradation
Affected: REST APIs and XML, PSTN Calls
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
- Textmagic · #3 · 99.82% uptime
- Africa's Talking · #4 · 99.80% uptime
- Infobip · #5 · 99.73% uptime
- Bird · #6 · 99.47% uptime