# 204.15.23.143 — IP Intelligence Summary

204.15.23.143 is an IPv4 address operated by FACEBOOK - Facebook, Inc., US (AS32934), with approximate network location Boston, United States. Its reverse DNS name is usw04.iad3.tfbnw.net. As of November 13, 2026, IPDebrief rates it Low Risk (0/100); no anonymizing service was detected.

- Canonical page: https://ipdebrief.com/204.15.23.143
- Last updated: 2026-11-13

## Ownership

- Organization: Facebook, Inc.
- Network name: TFBNET1
- Allocated block: 204.15.20.0/22
- ASN: AS32934 (https://ipdebrief.com/asn/32934)
- Regional registry: ARIN
- Registered holder: Facebook, Inc.
- Routing operator: FACEBOOK - Facebook, Inc., US
- Network registration country: United States
- Registrant address country: —

## Location

- City: Boston
- 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: 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

- usw04.iad3.tfbnw.net
- Forward-confirmed: 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

## Nearby addresses

- 204.15.23.144 (https://ipdebrief.com/204.15.23.144)
- 204.15.23.154 (https://ipdebrief.com/204.15.23.154)

## Addresses sharing infrastructure

- 204.15.21.96 — Same abuse contact (https://ipdebrief.com/204.15.21.96)

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Source: IPDebrief, "204.15.23.143 IP intelligence", https://ipdebrief.com/204.15.23.143, updated 2026-11-13. Assessments are probabilistic.