Service comparison

21st Century Mobile vs. Twilio

21st Century Mobile vs. Twilio — reliability, API availability, and incident frequency head-to-head.

Last 90 days · 82 incidents total · Data via Pulsetic monitoring

Head-to-head

90-day summary

21st Century Mobile

21st.se

Online
- 90-day uptime
  
  100.00%
- Incidents (90d)
  
  0
  
  0 major · 0 minor
- Median resolution
  
  —
- Longest outage
  
  —
View status page →
Twilio

twilio.com

Ongoing incident
- 90-day uptime
  
  76.88%
- Incidents (90d)
  
  82
  
  0 major · 82 minor
- Median resolution
  
  4h 58m
- Longest outage
  
  223h 36m
View status page →

Uptime over time

Availability across windows

Window	21st Century Mobile	Twilio	Δ
Last 24 hours	100.00%	37.50%	+62.50 pp
Last 7 days	100.00%	15.28%	+84.72 pp
Last 30 days	100.00%	30.64%	+69.36 pp
Last 90 days	100.00%	76.88%	+23.12 pp

Δ is percentage-point difference (21st Century Mobile minus Twilio). Higher is better.

Incidents 90-day

Severity breakdown

21st Century Mobile

0 total

0 major 0 minor
- Median resolution
  
  —
- Longest outage
  
  —
Twilio

82 total

0 major 82 minor
- Median resolution
  
  4h 58m
- Longest outage
  
  223h 36m

Recent activity

Last 5 incidents, side-by-side

21st Century Mobile
- Nov 29
  
  Delivery Issue Tele2 & Telenor (Sweden)
  
  < 1m
  
  Minor
- Mar 10
  
  Messaging platform (myMSP) delivery delays
  
  < 1m
  
  Major
- Feb 14
  
  Messaging platform (myMSP) delivery delays
  
  1h 19m
  
  Minor
- May 10
  
  Messaging platform (myMSP) delivery delays
  
  32m
  
  Minor
- Apr 29
  
  Messaging platform (myMSP) inaccessible
  
  < 1m
  
  Minor
View all incidents →
Twilio
- Sep 17
  
  503 Errors When Calling Comms-API
  
  < 1m
  
  Minor
- Sep 17
  
  MMS Delivery Failures from a Subset of Twilio Short Codes to Multiple Networks in United States
  
  Ongoing
  
  Minor
- Sep 17
  
  MMS Delivery Delyas and Failures from a Subset Of Twilio Longcode to Optus Australia
  
  4h 9m
  
  Minor
- Sep 17
  
  SMS Delivery Delays from Twilio to H3G United Kingdom
  
  6h 37m
  
  Minor
- Sep 17
  
  User Authentication Identity SNA Missing Redirects for PLDT Smart in Philippines
  
  7h 14m
  
  Minor
View all incidents →

Bottom line

21st Century Mobile wins

21st Century Mobile edges out on 90-day uptime.

21st Century Mobile posted 100.00% vs. 76.88% for Twilio (Δ +23.12 pp). Incidents: 0 vs. 82 (-82).

Also compare

Other 21st Century Mobile comparisons

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