172.11.121.0/24

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Summary

IP address summary information
ASN	AS7018 — AT&T Enterprises, LLC
BGP Prefix	172.0.0.0/12
Pingable IPs	4
Routers	0


172.11.121.0	172-11-121-0.lightspeed.austtx.sbcglobal.net	0
172.11.121.1	172-11-121-1.lightspeed.austtx.sbcglobal.net	0
172.11.121.2	172-11-121-2.lightspeed.austtx.sbcglobal.net	0
172.11.121.3	172-11-121-3.lightspeed.austtx.sbcglobal.net	0
172.11.121.4	172-11-121-4.lightspeed.austtx.sbcglobal.net	0
172.11.121.5	172-11-121-5.lightspeed.austtx.sbcglobal.net	0
172.11.121.6	172-11-121-6.lightspeed.austtx.sbcglobal.net	0
172.11.121.7	172-11-121-7.lightspeed.austtx.sbcglobal.net	0
172.11.121.8	172-11-121-8.lightspeed.austtx.sbcglobal.net	0
172.11.121.9	172-11-121-9.lightspeed.austtx.sbcglobal.net	0
172.11.121.10	172-11-121-10.lightspeed.austtx.sbcglobal.net	0
172.11.121.11	172-11-121-11.lightspeed.austtx.sbcglobal.net	0
172.11.121.12	172-11-121-12.lightspeed.austtx.sbcglobal.net	0
172.11.121.13	172-11-121-13.lightspeed.austtx.sbcglobal.net	0
172.11.121.14	172-11-121-14.lightspeed.austtx.sbcglobal.net	0

Traceroute

Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this range. Learn more.

$ traceroute -a -n -q1 172.11.121.109

traceroute to 172.11.121.109 (172.11.121.109): 64 hops max, 52 byte packets

1 [AS15169] 142.251.247.152 9.849 ms

2 [AS15169] 192.178.248.16 9.804 ms

3 [AS7018] 12.255.11.9 11.202 ms

4 *

5 *

6 *

7 *

8 [AS7018] 12.122.96.33 27.794 ms

9 [AS7018] 107.212.170.9 25.111 ms

10 *

11 [AS7018] 172.11.121.109 28.222 ms

Measurement taken from

IPinfo ProbeNet in Columbus, US

On July 12, 2026

Traceroute

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172.11.121.0/24

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Traceroute

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172.11.121.0/24

Summary

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