# 208.54.15.63 — IP Intelligence Summary

208.54.15.63 is an IPv4 address operated by T-MOBILE-AS21928 - T-Mobile USA, Inc., US (AS21928), with approximate network location United States. It belongs to a mobile network. As of November 13, 2026, IPDebrief rates it Low Risk (0/100); no anonymizing service was detected.

- Canonical page: https://ipdebrief.com/208.54.15.63
- Last updated: 2026-11-13

## Ownership

- Organization: T-Mobile USA, Inc.
- Network name: TMO2
- Allocated block: 208.54.0.0/17
- ASN: AS21928 (https://ipdebrief.com/asn/21928)
- Regional registry: ARIN
- Registered holder: T-Mobile USA, Inc.
- Routing operator: T-MOBILE-AS21928 - T-Mobile USA, Inc., US
- Network registration country: United States
- Registrant address country: —

## Location

- City: —
- Region: —
- Country: United States
- Time zone: —

Approximate network location; registration and certificate addresses are not server-location evidence.

## Network classification

- Infrastructure type: —
- Datacenter / hosting: no
- Residential: no
- Mobile: yes
- Anycast: Unverified (not proof of unicast)
- Tor exit node: no
- VPN: no
- Proxy: no

## Risk assessment

- Assessment: Low Risk (0/100)
- Blocklist listings: 0
- Suspicious activity indicators: no
- Spam source: no

## DNS posture

Mail authentication and CAA are optional domain policies, not IP-wide requirements.

- caa: Not checked
- spf: Not checked
- dmarc: Not checked
- dnssec: Not checked
- fcrDns: Not checked

## Witness AI - IP Assessment (AI-generated)

AI-generated assessment. Verify critical details independently.

IP address 208.54.15.63 was observed within the address block 208.54.0.0/17, assigned to T-Mobile USA, Inc. (ASN 21928) in the United States. Geolocation data indicated an approximate network location within the US, with no specific city or region identified. The network role was categorized as mobile, with the service purpose marked as firewalled or containing no active services. No TLS endpoints or probes were successfully established during the assessment. Registration and ownership records identified the routing operator as T-Mobile USA, Inc., while registrant and abuse contact details were unavailable. DNS hygiene checks for SPF, DMARC, DANE, and CAA were not executed; the absence of these records does not constitute a finding of poor hygiene due to the lack of assessment. The assigned risk score was zero. Given the limited scope of successful observations and the indication of a firewalled service, continued monitoring is recommended to correlate future activity with this static host.

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Source: IPDebrief, "208.54.15.63 IP intelligence", https://ipdebrief.com/208.54.15.63, updated 2026-11-13. Assessments are probabilistic.