# 13.35.107.72 — IP Intelligence Summary

13.35.107.72 is an IPv4 address operated by Amazon.com, Inc. (AS16509), geolocated to Philadelphia, United States. It belongs to datacenter or hosting infrastructure with reverse DNS name server-13-35-107-72.phl51.r.cloudfront.net. As of November 4, 2026, IPDebrief rates it Low Risk (20/100); no anonymizing service was detected.

- Canonical page: https://ipdebrief.com/13.35.107.72
- Last updated: 2026-11-04

## Ownership

- Organization: Amazon.com, Inc.
- Network name: AMAZO-CF
- Allocated block: 13.35.0.0/16
- ASN: AS16509 (https://ipdebrief.com/asn/16509)
- Regional registry: ARIN
- Cloud / hosting provider: Amazon Web Services

## Location

- City: Philadelphia
- Region: US-PA
- Country: United States
- Time zone: —

## Network classification

- Infrastructure type: —
- Datacenter / hosting: yes
- Residential: no
- Mobile: no
- Anycast: no
- Tor exit node: no
- VPN: no
- Proxy: no

## Risk assessment

- Assessment: Low Risk (20/100)
- Blocklist listings: 0
- Suspicious activity indicators: no
- Spam source: no

## Reverse DNS

- server-13-35-107-72.phl51.r.cloudfront.net
- Forward-confirmed: yes

## Exposed services

- 80/tcp — http
- 443/tcp — https

## Analyst narrative

Analysis identified the IP address 13.35.107.72 as Amazon.com, Inc. infrastructure (AS16509) within the AMAZO-CF network block. The host operated as a web server on the CloudFront CDN, maintaining open TCP ports 80 and 443. Threat indicators remained absent, with zero blacklist hits and no known campaign associations, resulting in a risk score of 20.

Discrepancies were observed between geolocation data and round-trip time physics, specifically a claimed distance of 7625.7 km versus an observed RTT of 26.0 ms. The asset resided in a clean subnet neighborhood with zero threat siblings. Due to signal contradictions, the asset was flagged for monitoring at a low severity level.

## Nearby addresses

- 13.35.107.7 (https://ipdebrief.com/13.35.107.7)
- 13.35.107.10 (https://ipdebrief.com/13.35.107.10)
- 13.35.107.12 (https://ipdebrief.com/13.35.107.12)
- 13.35.107.13 (https://ipdebrief.com/13.35.107.13)
- 13.35.107.15 (https://ipdebrief.com/13.35.107.15)
- 13.35.107.23 (https://ipdebrief.com/13.35.107.23)
- 13.35.107.26 (https://ipdebrief.com/13.35.107.26)
- 13.35.107.30 (https://ipdebrief.com/13.35.107.30)
- 13.35.107.37 (https://ipdebrief.com/13.35.107.37)
- 13.35.107.42 (https://ipdebrief.com/13.35.107.42)
- 13.35.107.47 (https://ipdebrief.com/13.35.107.47)
- 13.35.107.49 (https://ipdebrief.com/13.35.107.49)

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Source: IPDebrief, "13.35.107.72 IP intelligence", https://ipdebrief.com/13.35.107.72, updated 2026-11-04. Assessments are probabilistic.