A Greenwich 911 Outage: 60,000 Residents in the Dark

Last night, Greenwich faced a critical test. At 7:20 PM on Monday, May 11, the 911 service began to go dark town-wide. It wasn’t until 8:00 AM this morning that the Greenwich Police Department confirmed full restoration. Calls were successfully rerouted through the Stamford Emergency Communications Center via the State Police network, so emergency services were never truly "dark," though the local system was bypassed.
Hardware, Not Hackers
Despite the social media rumors, this wasn't a cyberattack. While the Greenwich Police haven't publicly named the specific carrier in their morning update, a hardware issue within the Public Safety Data Network (PSDN)—which handles the state’s NG911 (Next Generation 911) traffic—is the primary suspect in these types of regional glitches.
The Landline Weak Link
If you struggled to get a dial tone on your home phone but your cell worked, you aren't alone. During these outages, VoIP and traditional landlines often struggle more than cellular devices because cellular networks have more diverse routing paths (different towers/frequencies), whereas landline hardware is tied to specific physical "switches" that, if failed, cannot easily find another route.
Emergency Recommendations
Save the Non-Emergency Line: Put 203-622-8004 in your contacts now. It often stays live even when 911 is rerouted.
Text-to-911: If a voice call won’t go through, text "911." It requires less bandwidth and is more likely to pierce through a glitchy network.
Join Greenwich Alerts: Sign up for emergency alerts on the town website here.
Between the Lines: Luck is not a lifeline. Greenwich needs a redundant infrastructure that ensures a single hardware failure never leaves 60,000 residents in the dark again.

