155.163.194.0/23

AS20057 · AT&T Enterprises, LLC

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Summary

Country	United States
Domain	att.com
ASN	AS20057
Parent Range	155.163.0.0/16
Registry	ARIN
ID	ATT-MOBILITY-LLC-155-163-0-0

WHOIS Details

NetHandle:      NET-155-163-0-0-1
OrgID:          AEL-360
Parent:         NET-155-0-0-0-0
NetName:        ATT-MOBILITY-LLC-155-163-0-0
NetRange:       155.163.0.0 - 155.163.255.255
NetType:        allocation
RegDate:        1992-03-24
Updated:        2025-03-18
Source:         ARIN


OrgID:          AEL-360
OrgName:        AT&T Enterprises, LLC
CanAllocate:    
Street:         208 S. Akard St.
City:           Dallas
State/Prov:     TX
Country:        US
PostalCode:     75202
RegDate:        2024-11-22
Updated:        2025-10-29
OrgAdminHandle: ZS44-ARIN
OrgTechHandle:  ICC-ARIN
OrgTechHandle:  ZS44-ARIN
OrgAbuseHandle: ABUSE7-ARIN
OrgRoutingHandle:   ROUTI59-ARIN
Source:         ARIN


POCHandle:      ABUSE7-ARIN
IsRole:         Y
LastName:       abuse
FirstName:      
Street:         2701 W 15th ST
City:           Plano
State/Prov:     TX
Country:        US
PostalCode:     75075
RegDate:        2002-08-24
Updated:        2025-08-18
OfficePhone:    +1-919-319-8167
Mailbox:        abuse@att.net
Source:         ARIN


POCHandle:      ZS44-ARIN
IsRole:         Y
LastName:       IPAdmin-ATT Internet Services
FirstName:      
Street:         208 S. Akard St.
City:           Dallas
State/Prov:     TX
Country:        US
PostalCode:     75202
RegDate:        2000-05-17
Updated:        2026-02-04
OfficePhone:    +1-888-510-5545
Mailbox:        ipadmin@att.com
Mailbox:        ipadmin@semail.att.com
Source:         ARIN


POCHandle:      ICC-ARIN
IsRole:         Y
LastName:       IP Team
FirstName:      
Street:         200 S. Laurel AVE
City:           MIDDLETOWN
State/Prov:     NJ
Country:        US
PostalCode:     07748
RegDate:        2002-09-24
Updated:        2025-08-18
OfficePhone:    +1-888-876-2382
Mailbox:        rm-ipspecialist@att.com
Source:         ARIN

Overlapping Ranges

BGP prefixes that contain 155.163.194.0/23

Range	ASN	Company	Num of IPs
155.163.0.0/16	AS20057	AT&T Enterprises, LLC	65,536

Nearby Ranges

BGP prefixes that overlap with 155.163.0.0/16

Range	ASN	Company	Num of IPs
155.163.0.0/16	AS20057	AT&T Enterprises, LLC	65,536

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

Our Hosted Domains API, or Reverse IP API returns a full list of domains that are hosted on a single IP address.

Useful for Cybersecurity

Read more

Pingable IPs

8 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
155.163.194.73	AS20057 AT&T Enterprises, LLC	`2.54ms` from Ashburn, US
155.163.195.4	AS20057 AT&T Enterprises, LLC	`2.45ms` from Ashburn, US

Other Pingable IPs

Below is a random selection of 25 IPs that replied to an ICMP ping during our most recent internet scan.

IP Address	ASN	Details
89.132.107.167	AS21334 One Hungary Ltd.	`6.05ms` from Budapest, HU
122.139.158.231	AS4837 CHINA UNICOM China169 Backbone	`3.37ms` from Changchun, CN
176.91.182.151	AS16135 Turkcell A.S.	`16.18ms` from Istanbul, TR
76.175.169.55	AS20001 Charter Communications Inc	`5.25ms` from Los Angeles, US
35.241.53.231	AS396982 Google LLC	`0.07ms` from Melbourne, AU
72.84.179.135	AS701 Verizon Business	`11.37ms` from New York City, US
176.51.110.23	AS12389 PJSC Rostelecom	`1.21ms` from Novosibirsk, RU
143.92.231.199	AS25019 Saudi Telecom Company JSC	`7.21ms` from Riyadh, SA
95.85.56.119	AS14061 DigitalOcean, LLC	`0.21ms` from Amsterdam, NL
191.102.225.7	AS270057 DIRECTV COLOMBIA LTDA.	`1.50ms` from Bogota, CO
31.58.217.199	AS48678 PENTECH BILISIM TEKNOLOJILERI SANAYI VE TICARET LIMITED SIRKETi	`0.14ms` from Bursa, TR
177.34.137.7	AS28573 Claro NXT Telecomunicacoes Ltda	`8.79ms` from Curitiba, BR
68.40.110.247	AS7922 Comcast Cable Communications, LLC	`7.75ms` from Flint, US
91.48.149.7	AS3320 Deutsche Telekom AG	`6.92ms` from Frankfurt am Main, DE
59.61.223.7	AS4134 CHINANET-BACKBONE	`5.58ms` from Fuzhou, CN
61.140.20.199	AS4134 CHINANET-BACKBONE	`2.04ms` from Guangzhou, CN
136.32.164.23	AS16591 Google Fiber Inc.	`0.81ms` from Kansas City, US
84.33.84.199	AS35612 EOLO S.p.A.	`4.05ms` from Milan, IT
27.195.24.39	AS4837 CHINA UNICOM China169 Backbone	`6.06ms` from Qingdao, CN
54.183.186.167	AS16509 Amazon.com, Inc.	`0.15ms` from San Jose, US
138.137.141.199	AS5972 United States Department of Defense (DoD)	`10.87ms` from Dallas, US
79.232.62.247	AS3320 Deutsche Telekom AG	`10.64ms` from Frankfurt am Main, DE
68.181.147.199	AS47 University of Southern California	`1.20ms` from Los Angeles, US
188.87.165.55	AS12430 VODAFONE ESPANA S.A.U.	`12.16ms` from Madrid, ES
71.169.88.87	AS701 Verizon Business	`1.43ms` from New York City, US

Traceroute

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

traceroute -a -n -q1 155.163.194.51

traceroute to 155.163.194.51 (155.163.194.51): 64 hops max, 52 byte packets

1 [AS15169] 142.251.247.154 1.187 ms

2 [AS15169] 192.178.106.2 1.349 ms

3 [AS7018] 12.255.11.15 2.969 ms

4 [AS7018] 32.130.94.152 3.868 ms

5 [AS7018] 32.130.20.161 3.405 ms

6 [AS7018] 32.130.24.167 8.345 ms

7 [AS7018] 12.83.178.30 5.712 ms

8 [AS7018] 12.249.2.62 4.436 ms

9 [AS20057] 166.147.124.37 5.158 ms

10 [AS7018] 107.72.141.218 3.058 ms

11 *

12 *

13 *

14 *

15 [AS20057] 155.163.194.51 48.594 ms

Measurement taken from

IPinfo ProbeNet in Ashburn, US

On March 20th 2026

What are IP address ranges?

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