---
"@context": https://schema.org
"@type": TechArticle
"@id": https://www.twilio.com/docs/api/errors/60621#article
headline: "60621: Lookup Carrier Information Not Available"
url: https://www.twilio.com/docs/api/errors/60621
inLanguage: en
dateModified: 2026-03-11T22:03:37.000Z
author:
  "@type": Organization
  name: Twilio Developer Education Team
publisher:
  "@type": Organization
  name: Twilio
---

# 60621: Lookup Carrier Information Not Available

Log Type: CARRIER

Log Level: ERROR

## Description

Lookup SIM Swap Information is Incomplete From Carrier

### Possible causes

The request was processed successfully and Last SIM Swap information was returned, but carrier information was not available.

### Possible solutions

* Retry request to rule out transient issues in order to receive carrier information.
* If error persists, [contact Twilio Support](https://www.twilio.com/help/contact) to rule out other issues.