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IPv4 Address

166.203.255.255

AT&T Enterprises, LLC AS20057 · AT&T Enterprises, LLC United States ARIN

Within

166.192.0.0/12

CIDR

166.203.192.0/18

/18 · 16.4K IPs

ASN

AS20057

AT&T Enterprises, LLC

Reverse DNS

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Allocation details

CIDR range: 166.203.192.0/18
IP range (int): 2,798,370,816 — 2,798,387,199
Prefix length: /18
Organization: AT&T Enterprises, LLC
ASN: AS20057
ASN name: AT&T Enterprises, LLC
Country: United States
Coordinates: 37.751000, -97.822000
Accuracy radius: 1000 km
RIR: ARIN
Data source(s): maxmind_city, maxmind_asn, maxmind_country
Last updated: 2026-04-16 09:22:39

Neighbors

Other addresses in the same /24.

166.203.255.247 166.203.255.248 166.203.255.249 166.203.255.250 166.203.255.251 166.203.255.252 166.203.255.253 166.203.255.254 See all in 166.192.0.0/12 →

Related

/24 neighborhood /16 block /8 block All AS20057 ranges All AT&T Enterprises, LLC ranges All United States IPs

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