SMS & Voice APIs · reliability comparison

Bandwidth vs Telesign: which is more reliable? (2026)

Telesign is more reliable than Bandwidth, scoring 89.4 vs 33.7 out of 100. Over the last 90 days Bandwidth reported 67 incidents and Telesign reported 8, with effective uptime of 97.18% and 99.91% respectively. Telesign resolves incidents faster on average (1h 27m).

Data updated Nov 1, 2026 · How we score

Bandwidth

33.7/100

Operational

Visit Bandwidth ↗

Telesign

89.4/100

Degraded

Visit Telesign ↗
VS
MetricBandwidthTelesign
Reliability score33.789.4
Rank (SMS & voice APIs)#9#2
Uptime (90 days)97.18%99.91%
Incidents (90 days)678
Partial / major outages141
Avg time to resolve5h 38m1h 27m
Outages we detected00
Transparency score100/100100/100

Where Bandwidth and Telesign differ

  • Bandwidth reported 8.4× as many incidents as Telesign over the last 90 days (67 vs 8).
  • Bandwidth had 14 partial or major outages, compared with 1 for Telesign.
  • Telesign fixes problems faster: 1h 27m on average, against 5h 38m for Bandwidth (3.9× quicker).
  • Bandwidth's longest outage on record lasted 15h 12m (Oct 20, 2026); Telesign's lasted 3h 36m (Oct 3, 2026).

90-day uptime

Bandwidth

Aug 4, 2026: 93.90% uptime, 1 incident (Degraded performance)Aug 5, 2026: 95.72% uptime, 1 incident (Degraded performance)Aug 6, 2026: no incidentsAug 7, 2026: 94.75% uptime, 1 incident (Degraded performance)Aug 8, 2026 – Aug 10, 2026: no incidentsAug 11, 2026: 87.27% uptime, 3 incidents (Degraded performance)Aug 12, 2026: 97.18% uptime, 1 incident (Degraded performance)Aug 13, 2026: no incidentsAug 14, 2026: 96.25% uptime, 3 incidents (Degraded performance)Aug 15, 2026 – Aug 16, 2026: no incidentsAug 17, 2026: 86.31% uptime, 2 incidents (Partial outage)Aug 18, 2026: 96.13% uptime, 1 incident (Degraded performance)Aug 19, 2026: no incidentsAug 20, 2026: 83.65% uptime, 2 incidents (Partial outage)Aug 21, 2026: 99.25% uptime, 1 incident (Degraded performance)Aug 22, 2026 – Aug 23, 2026: no incidentsAug 24, 2026: 97.38% uptime, 1 incident (Degraded performance)Aug 25, 2026: 91.66% uptime, 1 incident (Major outage)Aug 26, 2026 – Aug 31, 2026: no incidentsSep 1, 2026: 93.60% uptime, 2 incidents (Major outage)Sep 2, 2026: 94.30% uptime, 2 incidents (Degraded performance)Sep 3, 2026: 88.81% uptime, 2 incidents (Degraded performance)Sep 4, 2026 – Sep 7, 2026: no incidentsSep 8, 2026: 81.38% uptime, 2 incidents (Major outage)Sep 9, 2026 – Sep 10, 2026: no incidentsSep 11, 2026: 99.48% uptime, 1 incident (Degraded performance)Sep 12, 2026 – Sep 13, 2026: no incidentsSep 14, 2026: 95.27% uptime, 2 incidents (Degraded performance)Sep 15, 2026: 96.33% uptime, 2 incidents (Degraded performance)Sep 16, 2026 – Sep 22, 2026: no incidentsSep 23, 2026: 91.80% uptime, 2 incidents (Partial outage)Sep 24, 2026 – Oct 1, 2026: no incidentsOct 2, 2026: 78.36% uptime, 2 incidents (Partial outage)Oct 3, 2026 – Oct 5, 2026: no incidentsOct 6, 2026: 87.25% uptime, 3 incidents (Partial outage)Oct 7, 2026: 97.08% uptime, 5 incidents (Degraded performance)Oct 8, 2026: 98.07% uptime, 2 incidents (Degraded performance)Oct 9, 2026 – Oct 18, 2026: no incidentsOct 19, 2026: 95.62% uptime, 1 incident (Degraded performance)Oct 20, 2026: 91.80% uptime, 3 incidents (Partial outage)Oct 21, 2026: 69.98% uptime, 2 incidents (Partial outage)Oct 22, 2026: 76.36% uptime, 4 incidents (Partial outage)Oct 23, 2026: 98.27% uptime, 1 incident (Degraded performance)Oct 24, 2026 – Oct 25, 2026: no incidentsOct 26, 2026: 98.34% uptime, 1 incident (Degraded performance)Oct 27, 2026 – Oct 28, 2026: no incidentsOct 29, 2026: 94.69% uptime, 1 incident (Partial outage)Oct 30, 2026 – Nov 1, 2026: no incidents
90 days ago97.182% average daily uptimeToday

Telesign

Aug 4, 2026 – Oct 2, 2026: no incidentsOct 3, 2026: 92.50% uptime, 1 incident (Partial outage)Oct 4, 2026 – Oct 6, 2026: no incidentsOct 7, 2026: 99.74% uptime, 1 incident (Degraded performance)Oct 8, 2026 – Oct 15, 2026: no incidentsOct 16, 2026: 99.77% uptime, 1 incident (Degraded performance)Oct 17, 2026 – Nov 1, 2026: no incidents
90 days ago99.911% average daily uptimeToday

Recent Bandwidth incidents

Full Bandwidth reliability report →

Recent Telesign incidents

Full Telesign reliability report →

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