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CIDR
/24 · 256 IPs
ASN
AT&T Enterprises, LLC
Reverse DNS
mobile-166-205-085-036.mycingular.net
Last scanned 3 hr ago
Blocklisted
Checking…
Scanning blocklists

Reputation · trust score

A transparent 0–100 signal. Every entity starts at a neutral baseline of 65; threat-intel blocklists, exposure, reverse-DNS, routing and allocation each adjust it up or down. Higher is more trustworthy.

72/100
Moderate
How this score is built

Experimental · trust-vectors model v1.1.0 — a transparent heuristic, not a definitive verdict. How it works →

DNS records

Reverse DNS (PTR)
mobile-166-205-085-036.mycingular.net
Forward-confirmed (FCrDNS)
✗ Mismatch
PTR TTL
10800 s
Reverse DNS last checked
2026-07-20 12:24 UTC
Forward DNS last checked
2026-07-20 12:24 UTC
every IP & sub-domain we've seen under this domain

Reverse & forward DNS collected by the WorldIP scanner fleet — FCrDNS confirms the PTR hostname resolves back to this IP.

Network Allocation for 166.205.85.36

CIDR range
166.205.85.0/24
IP range (int)
2,798,474,496 — 2,798,474,751
Prefix length
/24
Organization
AT&T Enterprises, LLC
ASN
AS7018
ASN name
AT&T Enterprises, LLC
Location
South San Francisco, California, United States
Coordinates
37.653800, -122.425700
Accuracy radius
50 km
Postal code
94080
Regional Internet Registry
ARIN
Allocated
2025-04-01
Data source(s)
maxmind_city, maxmind_asn, ipinfo_lite, maxmind_country
Last updated
2026-07-11 09:23:45

Origin AS announcing the most-specific prefix that covers this IP, observed across our RIPE RIS collectors.

Announced prefix
Origin AS
Announcement samples
3,593
Last seen
2026-07-20 15:20:08

Frequently Asked Questions

Who owns 166.205.85.36?

166.205.85.36 is allocated to AT&T Enterprises, LLC (AS7018), registered in South San Francisco, United States.

Where is 166.205.85.36 located?

The geolocation for 166.205.85.36 maps to South San Francisco, United States based on MaxMind GeoLite2 data. Accuracy depends on the provider and may represent the ISP's regional hub rather than the exact endpoint.

What network is 166.205.85.36 on?

166.205.85.36 belongs to the 166.205.85.0/24 network block announced by AS7018. This range contains 256 addresses.

Does 166.205.85.36 have a reverse DNS record?

Reverse DNS (PTR) records are resolved live when you visit this page. If a PTR record exists, it appears in the Reverse DNS field above. PTR records map IP addresses back to hostnames and are commonly used for email authentication and network diagnostics.

Neighbors

Other addresses in the same /24.

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