# 172.59.137.216 — IP Intelligence Summary

172.59.137.216 is an IPv4 address announced by AS21928, with approximate network location Pittsburgh, United States. It belongs to a mobile network. As of October 11, 2026, IPDebrief rates it Low Risk (0/100); no anonymizing service was detected.

- Canonical page: https://ipdebrief.com/172.59.137.216
- Last updated: 2026-10-11

## Ownership

- Organization: T-Mobile USA, Inc.
- Network name: TMO9
- Allocated block: 172.32.0.0/11
- ASN: AS21928 (https://ipdebrief.com/asn/21928)
- Regional registry: ARIN
- Registered holder: T-Mobile USA, Inc.
- Routing operator: —
- Network registration country: United States
- Registrant address country: —

## Location

- City: Pittsburgh
- Region: PA
- Country: United States
- Time zone: America/New_York

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

## Network classification

- Infrastructure type: MobileCarrier
- 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.

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

## Nearby addresses

- 172.59.137.27 (https://ipdebrief.com/172.59.137.27)
- 172.59.137.29 (https://ipdebrief.com/172.59.137.29)
- 172.59.137.94 (https://ipdebrief.com/172.59.137.94)

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Source: IPDebrief, "172.59.137.216 IP intelligence", https://ipdebrief.com/172.59.137.216, updated 2026-10-11. Assessments are probabilistic.