# 18.88.31.103 — IP Intelligence Summary

18.88.31.103 is an IPv4 address operated by Amazon Web Services (AS16509), with approximate network location Dallas, United States. Its reverse DNS name is ec2-18-88-31-103.compute-1.amazonaws.com. As of November 12, 2026, IPDebrief rates it Low Risk (0/100); no anonymizing service was detected.

- Canonical page: https://ipdebrief.com/18.88.31.103
- Last updated: 2026-11-12

## Ownership

- Organization: Amazon Data Services Northern Virginia
- Network name: AMAZON-IAD
- Allocated block: 18.88.0.0/18
- ASN: AS16509 (https://ipdebrief.com/asn/16509)
- Regional registry: ARIN
- Registered holder: Amazon Data Services Northern Virginia
- Routing operator: —
- Network registration country: United States
- Registrant address country: —
- Cloud / hosting provider: Amazon Web Services

## Location

- City: Dallas
- Region: TX
- Country: United States
- Time zone: America/Chicago

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

## Network classification

- Infrastructure type: Unknown
- Datacenter / hosting: no
- Residential: no
- Mobile: no
- 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

## Reverse DNS

- ec2-18-88-31-103.compute-1.amazonaws.com
- Forward-confirmed: yes

## Exposed services

- 80/tcp — http
- 443/tcp — https

## 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

## TLS observations

- CN=lz.web.us-east-1-dfw-2a.prod.diagnostic.networking.aws.dev; port unknown; target —; Historical certificate; current certificate unknown; valid until 2027-02-24T23:59:59.0000000+00:00

## Nearby addresses

- 18.88.31.105 (https://ipdebrief.com/18.88.31.105)

## Addresses sharing infrastructure

- 18.88.33.116 — Same TLS certificate (https://ipdebrief.com/18.88.33.116)

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Source: IPDebrief, "18.88.31.103 IP intelligence", https://ipdebrief.com/18.88.31.103, updated 2026-11-12. Assessments are probabilistic.