# 100.51.19.139 — IP Intelligence Summary

100.51.19.139 is an IPv4 address operated by Amazon Data Services Northern Virginia (AS14618), geolocated to Ashburn, United States. It belongs to datacenter or hosting infrastructure with reverse DNS name ec2-100-51-19-139.compute-1.amazonaws.com. As of November 6, 2026, IPDebrief rates it High Risk (70/100); no anonymizing service was detected.

- Canonical page: https://ipdebrief.com/100.51.19.139
- Last updated: 2026-11-06

## Ownership

- Organization: Amazon Data Services Northern Virginia
- Network name: AMAZON-IAD
- Allocated block: 100.48.0.0/12
- ASN: AS14618 (https://ipdebrief.com/asn/14618)
- Regional registry: ARIN
- Cloud / hosting provider: Amazon Web Services

## Location

- City: Ashburn
- Region: VA
- Country: United States
- Time zone: America/New_York

## Network classification

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

## Risk assessment

- Assessment: High Risk (70/100)
- Blocklist listings: 0
- Suspicious activity indicators: no
- Spam source: no

## Reverse DNS

- ec2-100-51-19-139.compute-1.amazonaws.com
- Forward-confirmed: yes

## Exposed services

- 443/tcp — https

## Analyst narrative

IP 100.51.19.139 resolves to an Amazon Web Services compute instance in Ashburn, Virginia, associated with the amazonaws.com domain and Epic Games internal TLS certificates. Despite stable ownership and good DNS hygiene, the profile carries a risk score of 70 with strong threat evidence, triggering a critical recommendation to block the address. The endpoint responds with a 403 Forbidden status on port 443 and is fingerprinted as AWS Load Balancer v2.0. While the overall confidence label is Very Low due to limited corroboration, the high-risk campaign likelihood and threat list matches necessitate immediate firewall blocking.

## Addresses sharing infrastructure

- 3.210.247.127 — Same TLS certificate (https://ipdebrief.com/3.210.247.127)
- 3.215.61.15 — Same TLS certificate (https://ipdebrief.com/3.215.61.15)
- 3.215.217.124 — Same TLS certificate (https://ipdebrief.com/3.215.217.124)
- 3.216.97.113 — Same TLS certificate (https://ipdebrief.com/3.216.97.113)
- 3.219.146.115 — Same TLS certificate (https://ipdebrief.com/3.219.146.115)
- 3.227.167.63 — Same TLS certificate (https://ipdebrief.com/3.227.167.63)
- 3.233.252.52 — Same TLS certificate (https://ipdebrief.com/3.233.252.52)
- 34.195.127.189 — Same TLS certificate (https://ipdebrief.com/34.195.127.189)
- 34.197.20.139 — Same TLS certificate (https://ipdebrief.com/34.197.20.139)
- 34.202.228.102 — Same TLS certificate (https://ipdebrief.com/34.202.228.102)
- 44.207.82.239 — Same TLS certificate (https://ipdebrief.com/44.207.82.239)
- 44.214.129.32 — Same TLS certificate (https://ipdebrief.com/44.214.129.32)

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Source: IPDebrief, "100.51.19.139 IP intelligence", https://ipdebrief.com/100.51.19.139, updated 2026-11-06. Assessments are probabilistic.