SMS & Voice APIs · reliability comparison
Bird vs SignalWire: which is more reliable? (2026)
SignalWire is more reliable than Bird, scoring 92.1 vs 61.7 out of 100. Over the last 90 days Bird reported 8 incidents and SignalWire reported 3, with effective uptime of 99.47% and 99.94% respectively. SignalWire resolves incidents faster on average (47m).
Data updated Nov 1, 2026 · How we score
| Metric | Bird | SignalWire |
|---|---|---|
| Reliability score | 61.7 | 92.1 |
| Rank (SMS & voice APIs) | #7 | #2 |
| Uptime (90 days) | 99.47% | 99.94% |
| Incidents (90 days) | 8 | 3 |
| Partial / major outages | 0 | 3 |
| Avg time to resolve | 12h 38m | 47m |
| Outages we detected | 0 | 0 |
| Transparency score | 100/100 | 100/100 |
Where Bird and SignalWire differ
- Bird reported 2.7× as many incidents as SignalWire over the last 90 days (8 vs 3).
- SignalWire had 3 partial or major outages, compared with 0 for Bird.
- SignalWire fixes problems faster: 47m on average, against 12h 38m for Bird (16.0× quicker).
- Bird's longest outage on record lasted 1d 23h (Nov 24, 2025); SignalWire's lasted 1h 59m (Aug 14, 2026).
90-day uptime
Bird
SignalWire
- No incidents
- Degraded
- Partial outage
- Major outage
- No data
Recent Bird incidents
- Degraded performanceOct 23, 2026 · resolved in 28m
Affected: Bird Platform
- Degraded performanceOct 5, 2026 · resolved in 53m
Bird.com Platform: Increased 5xx errors and delivery deliays
Affected: Bird Platform
- Degraded performanceOct 4, 2026 · resolved in 47m
Increased delivery latency for SMS service
Affected: SMS - API, SMS - SMPP - EU - SMPP01, SMS - SMPP - EU - SMPP02, SMS - SMPP - EU - SMPP03, Channels - Europe, SMS - API V1 +3 more
- Degraded performanceSep 26, 2026 · resolved in 19m
Increased Error rates on USA Bird Platform API
Affected: Bird Platform
- InformationalSep 18, 2026 · resolved in 1h 29m
Elevated processing delays — US region
Affected: Analytics - US (West), Campaigns - US (West), Channels - US (West), Connectors - US (West), Contacts - US (West), Flows - US (West) +2 more
- Degraded performanceSep 17, 2026 · resolved in 1h 22m
Elevated API errors and voice call setup failures (US)
Affected: Bird Platform
Recent SignalWire incidents
- Partial outageOct 23, 2026 · resolved in 10m
Dashboard analytics unavailable
Affected: Website
- Partial outageOct 5, 2026 · resolved in 14m
Resolved: underlying infrastructure issue resulted in an interruption to all services.
Affected: AI, APIs, MMS, SIP Connectivity, SMS, Video and Conferencing +1 more
- Partial outageAug 14, 2026 · resolved in 1h 59m
Degraded: outbound calls and fax
Affected: APIs
Other SMS & voice APIs to consider
- Plivo · #1 · 100% uptime
- Telesign · #3 · 99.91% uptime
- Textmagic · #4 · 99.82% uptime
- Africa's Talking · #5 · 99.80% uptime