# Twilio: Programmable Wireless SIMs May Experience Connectivity Issues With SK Telekom In South Korea

> Twilio status incident “Programmable Wireless SIMs May Experience Connectivity Issues With SK Telekom In South Korea” on 2021-10-28: impact minor (vendor’s label), 3 d, 1 update(s). Archived by Rewindex.

Canonical: https://rewindex.com/company/twilio/incidents/03mcsxmtvv2h
Last updated: 2021-10-30T22:48:00Z

- Impact (vendor’s label): minor
- Status: resolved
- Started: 2021-10-28 10:03 UTC · Resolved: 2021-10-30 22:48 UTC · Duration: 3 d
- Updates: 1
- [Vendor status page: https://status.twilio.com/incidents/03mcsxmtvv2h](https://status.twilio.com/incidents/03mcsxmtvv2h)
- [Company: Twilio](https://rewindex.com/company/twilio.md)

## Timeline of updates

- **resolved** 2021-10-30 22:48 UTC: Connectivity issues with Programmable Wireless in South Korea have been resolved. Our connectivity partner for Programmable Wireless steered the traffic away from SK Telecom and LGU to Korea Telecom. Devices using Programmable Wireless SIMs are expected to only use Korea Telecom (KT). In case your devices haven’t moved to KT, rebooting the devices or sending a connectivity reset will cause them to switch over to KT. Please see https://support.twilio.com/hc/en-us/articles/360020619893-Resetting-a-Wireless-SIM-s-Network-Connection for more information. Please be advised, roaming options in South Korea have changed and SK Telecom is not a network option open to Programmable Wireless.

_From the vendor’s published history: only the final update text is available for incidents before Rewindex began polling this page._

## Cite this

Status incident (vendor impact label: minor) posted by Twilio, started 2021-10-28 10:03 UTC, resolved after 3 d, 1 update(s).

- Canonical URL: https://rewindex.com/company/twilio/incidents/03mcsxmtvv2h
- Citation: Twilio, “Programmable Wireless SIMs May Experience Connectivity Issues With SK Telekom In South Korea” (2021-10-28 10:03 UTC). Archived by Rewindex: https://rewindex.com/company/twilio/incidents/03mcsxmtvv2h (CC BY 4.0).
- Markdown link: `[Twilio: Programmable Wireless SIMs May Experience Connectivity Issues With SK Telekom In South Korea (2021-10-28)](https://rewindex.com/company/twilio/incidents/03mcsxmtvv2h)`


---
Canonical: https://rewindex.com/company/twilio/incidents/03mcsxmtvv2h · Markdown: https://rewindex.com/company/twilio/incidents/03mcsxmtvv2h.md · JSON: https://rewindex.com/api/v1/companies/twilio/incidents/03mcsxmtvv2h · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-11-05T14:00:05.886Z