Service comparison

21st Century Mobile vs. Twilio

21st Century Mobile vs. Twilio: uptime, incident frequency and resolution times, head-to-head.

Last 90 days · 191 incidents total · Twilio on record since Aug 2026 · From each provider's official status page

Head-to-head

90-day summary

21st Century Mobile

21st.se

Online
- 90-day uptime
  
  99.86%
- Incidents (90d)
  
  1
  
  0 major · 1 minor
- Median resolution
  
  2h 55m
- Longest incident
  
  2h 55m
View status page →
Twilio

twilio.com

Ongoing incident
- 90-day uptime
  
  53.18%
- Incidents (90d)
  
  190
  
  0 major · 190 minor
- Median resolution
  
  5h 27m
- Longest incident
  
  779h 14m
On record since Aug 2026, so these figures count fewer than 90 days of incidents.

View status page →

Uptime over time

Availability across windows

Window	21st Century Mobile	Twilio	Δ
Last 24 hours	100.00%	41.25%	+58.75 pp
Last 7 days	100.00%	6.96%	+93.04 pp
Last 30 days	99.59%	1.63%	+97.96 pp
Last 90 days	99.86%	53.18%	+46.68 pp

Uptime is the share of each window with no incident open on the provider's official status page. Δ is percentage-point difference (21st Century Mobile minus Twilio). Higher is better. Twilio is on record since Aug 2026, so windows reaching back before then count fewer days of incidents.

Incidents 90-day

Severity breakdown

21st Century Mobile

1 total

0 major 1 minor
- Median resolution
  
  2h 55m
- Longest incident
  
  2h 55m
Twilio

190 total since Aug 2026

0 major 190 minor
- Median resolution
  
  5h 27m
- Longest incident
  
  779h 14m

Recent activity

Last 5 incidents, side-by-side

21st Century Mobile
- Sep 29
  
  Messaging platform (myMSP) delivery delays
  
  2h 55m
  
  Minor
- Nov 29, 2024
  
  Delivery Issue Tele2 & Telenor (Sweden)
  
  < 1m
  
  Minor
- Mar 10, 2024
  
  Messaging platform (myMSP) delivery delays
  
  < 1m
  
  Major
- Feb 14, 2024
  
  Messaging platform (myMSP) delivery delays
  
  1h 19m
  
  Minor
- May 10, 2022
  
  Messaging platform (myMSP) delivery delays
  
  32m
  
  Minor
View all incidents →
Twilio
- Oct 7
  
  SMS and MMS Delivery Receipt Delays from Twilio to AT&T United States
  
  7h 24m
  
  Minor
- Oct 7
  
  SMS Delivery Delays from Twilio to Brisanet Brazil
  
  Ongoing
  
  Minor
- Oct 7
  
  SMS Delivery Delays from Twilio to Brisanet Brazil
  
  58m
  
  Minor
- Oct 6
  
  SMS and MMS Delivery Delays and Delivery Receipt Delays between Twilio and AT&T in the United States
  
  5h 56m
  
  Minor
- Oct 6
  
  SMS Delivery Failures from Twilio to Movistar El Salvador
  
  Ongoing
  
  Minor
View all incidents →

Bottom line

21st Century Mobile wins

21st Century Mobile edges out on 30-day uptime.

21st Century Mobile posted 99.59% vs. 1.63% for Twilio over the last 30 days (Δ +97.96 pp). Twilio is on record only since Aug 2026, so the 90-day figures above are not like for like.

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