VoIP Positioning Center (VPC) Incident Notice (TT 1090660)

Update timeline

1. investigating Oct 19, 2026, 11:09 AM UTC

   This is an Initial notification. RedSky Technologies is informing you of a potential impact to 911 services in Sinch network or systems. You may be experiencing disruption to VoIP 9-1-1 services in the affected region. Start time: October 18th, 2026 10:48:36 PM CT Central Time. Estimated time to resolution: Currently unknown. Cause: Currently unknown. Routing/workaround: During this outage, calls are being delivered to the PSAP’s 10 digit 24 by 7 emergency line. Affected PSAPs: 528, Amador County Sheriff (jackson), Amador, CA; 574, Calaveras County Sheriff (san Andreas), Calaveras, CA; 609, Ceres Police Department, Stanislaus, CA; 687, Csu Stanislaus Police Department, Stanislaus, CA; 788, Livingston Police Department, Merced, CA; 819, Merced County Sheriff (merced), Merced, CA; 821, Merced Police Department, Merced, CA; 851, Oakdale Police Department, Stanislaus, CA; 988, Stanislaus Regional 9-1-1 (modesto), Stanislaus, CA; 1009, Turlock Police Department, Stanislaus, CA; 8173, UC Merced Police Department, Merced, CA; 8231, Dos Palos Police Department (westside Regional Communications Center), Merced, CA.

2. investigating Oct 19, 2026, 11:11 AM UTC

   This is an Update notification. RedSky Technologies is informing you of a potential impact to 911 services in Sinch network or systems. You may be experiencing disruption to VoIP 9-1-1 services in the affected region. Start time: October 18th, 2026 10:48:36 PM CT Central Time. Estimated time to resolution: Currently unknown. Cause: Currently unknown. Routing/workaround: During this outage, calls are being delivered to the PSAP’s 10 digit 24 by 7 emergency line. Affected PSAPs: 528, Amador County Sheriff (jackson), Amador, CA; 574, Calaveras County Sheriff (san Andreas), Calaveras, CA; 609, Ceres Police Department, Stanislaus, CA; 687, Csu Stanislaus Police Department, Stanislaus, CA; 788, Livingston Police Department, Merced, CA; 819, Merced County Sheriff (merced), Merced, CA; 821, Merced Police Department, Merced, CA; 851, Oakdale Police Department, Stanislaus, CA; 988, Stanislaus Regional 9-1-1 (modesto), Stanislaus, CA; 1009, Turlock Police Department, Stanislaus, CA; 8173, UC Merced Police Department, Merced, CA; 8231, Dos Palos Police Department (westside Regional Communications Center), Merced, CA.

3. investigating Oct 19, 2026, 11:12 AM UTC

   This is an Update notification. RedSky Technologies is informing you of a potential impact to 911 services in Sinch network or systems. You may be experiencing disruption to VoIP 9-1-1 services in the affected region. Start time: October 18th, 2026 10:48:36 PM CT Central Time. Estimated time to resolution: Currently unknown. Cause: Currently unknown. Routing/workaround: During this outage, calls are being delivered to the PSAP’s 10 digit 24 by 7 emergency line. Affected PSAPs: 528, Amador County Sheriff (jackson), Amador, CA; 574, Calaveras County Sheriff (san Andreas), Calaveras, CA; 609, Ceres Police Department, Stanislaus, CA; 687, Csu Stanislaus Police Department, Stanislaus, CA; 788, Livingston Police Department, Merced, CA; 819, Merced County Sheriff (merced), Merced, CA; 821, Merced Police Department, Merced, CA; 851, Oakdale Police Department, Stanislaus, CA; 988, Stanislaus Regional 9-1-1 (modesto), Stanislaus, CA; 1009, Turlock Police Department, Stanislaus, CA; 8173, UC Merced Police Department, Merced, CA; 8231, Dos Palos Police Department (westside Regional Communications Center), Merced, CA.

4. resolved Oct 20, 2026, 12:58 AM UTC

   This is a Resolved notification. RedSky Technologies is informing you that this incident may have impacted 911 services in Sinch network or systems. VoIP 9-1-1 services are operating normally in the affected region. Start time: October 18th, 2026 22:48:36 CT. Restored at: October 19, 2026 18:33 CT. Cause: A fiber cut in the LEC's network. Affected PSAPs: 528, Amador County Sheriff (jackson), Amador, CA; 574, Calaveras County Sheriff (san Andreas), Calaveras, CA; 609, Ceres Police Department, Stanislaus, CA; 687, Csu Stanislaus Police Department, Stanislaus, CA; 788, Livingston Police Department, Merced, CA; 819, Merced County Sheriff (merced), Merced, CA; 821, Merced Police Department, Merced, CA; 851, Oakdale Police Department, Stanislaus, CA; 988, Stanislaus Regional 9-1-1 (modesto), Stanislaus, CA; 1009, Turlock Police Department, Stanislaus, CA; 8173, UC Merced Police Department, Merced, CA; 8231, Dos Palos Police Department (westside Regional Communications Center), Merced, CA.