AS19957

Name: AS19957 — AT&T Enterprises, LLC
Creator: ipdex

AT&T Enterprises, LLC Unknown registered in United States

42IPv4 prefixes

0IPv6 prefixes

#8,372AS Rank

327/327RIS visibility

#835Rank in United States

2003-03-05Allocated

AT&T Enterprises, LLC (AS19957) — Unknown, registered in United States. announces 42 IPv4 prefixes + 0 IPv6 prefixes. Rank in United States: #835. Allocated: 2003-03-05.

IPv4 42IPv6 0

Announced prefixes · 42

v4 12.204.192.0/20 unknown
v4 12.204.201.0/24 unknown
v4 12.204.206.0/24 unknown
v4 12.204.208.0/20 unknown
v4 12.204.208.0/24 unknown
v4 12.204.209.0/24 unknown
v4 12.204.216.0/21 unknown
v4 170.141.56.0/23 unknown
v4 170.141.60.0/23 unknown
v4 170.142.0.0/16 unknown
v4 170.143.0.0/16 unknown
v4 198.146.0.0/16 unknown
v4 206.23.0.0/16 unknown
v4 208.182.0.0/16 unknown
v4 208.182.101.0/24 unknown
v4 208.182.124.0/24 unknown
v4 208.63.128.0/20 unknown
v4 208.63.128.0/24 unknown
v4 208.63.129.0/24 unknown
v4 64.79.176.0/21 unknown
v4 66.4.0.0/16 unknown
v4 66.4.124.0/24 unknown
v4 66.4.126.0/24 unknown
v4 66.4.14.0/23 unknown
v4 66.4.16.0/23 unknown
v4 66.4.18.0/23 unknown
v4 66.4.18.0/24 unknown
v4 66.4.19.0/24 unknown
v4 66.4.27.0/24 unknown
v4 66.4.28.0/22 unknown
v4 66.4.32.0/23 unknown
v4 66.4.38.0/24 unknown
v4 66.4.40.0/24 unknown
v4 66.4.60.0/23 unknown
v4 66.4.78.0/24 unknown
v4 66.4.8.0/23 unknown
v4 66.4.81.0/24 unknown
v4 66.4.9.0/24 unknown
v4 70.150.21.0/24 unknown
v4 70.150.247.0/24 unknown
v4 72.158.184.0/24 unknown
v4 72.159.76.0/24 unknown

Routing: 42 IPv4 · 0 IPv6 announced · RIS visibility 327/327 RIS peers · RIPEstat · 2026-06-17

Prefix history

Announced prefixes Source: ipdex daily snapshot · sparse rows, value holds until the next change (steps)

Data table

Day	Announced prefixes
2026-06-12	42
2026-06-13	42

AS topology · Customer cone 2

Providers · 2

AS7018 AT&T Enterprises, LLC
AS16473

Customers · 1

AS16989 The University of Tennessee Health Science Center

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