155.166.196.0/23

AS20057 · AT&T Enterprises, LLC

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Summary

Country	United States
Domain	att.com
ASN	AS20057
Parent Range	155.166.0.0/16
Registry	ARIN
ID	ATT-MOBILITY-LLC-155-166-0-0

WHOIS Details

NetHandle:      NET-155-166-0-0-1
OrgID:          AEL-360
Parent:         NET-155-0-0-0-0
NetName:        ATT-MOBILITY-LLC-155-166-0-0
NetRange:       155.166.0.0 - 155.166.255.255
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:        [email protected]
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:        [email protected]
Source:         ARIN


POCHandle:      ZS44-ARIN
IsRole:         Y
LastName:       IPAdmin-ATT Internet Services
FirstName:      
Street:         7277 164th Ave NE
Street:         Attn: IP Management
City:           Redmond
State/Prov:     WA
Country:        US
PostalCode:     98052
RegDate:        2000-05-17
Updated:        2025-08-18
OfficePhone:    +1-888-510-5545
Mailbox:        [email protected]
Mailbox:        [email protected]
Source:         ARIN

Overlapping Ranges

BGP prefixes that contain 155.166.196.0/23

Range	ASN	Company	Num of IPs
155.166.0.0/16	AS20057	AT&T Enterprises, LLC	65,536

Nearby Ranges

BGP prefixes that overlap with 155.166.0.0/16

Range	ASN	Company	Num of IPs
155.166.0.0/16	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

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

IP Address	ASN	Details
155.166.196.215	AS20057 AT&T Enterprises, LLC	`22.15ms` from San Jose, US
155.166.197.189	AS20057 AT&T Enterprises, LLC	`23.20ms` from San Jose, 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
162.151.245.7	AS7922 Comcast Cable Communications, LLC	`0.47ms` from Ashburn, US
97.70.235.23	AS33363 Charter Communications, Inc	`9.40ms` from Chicago, US
66.205.181.183	AS13649 Flexential Colorado Corp.	`0.85ms` from Dallas, US
34.244.201.71	AS16509 Amazon.com, Inc.	`0.51ms` from Dublin, IE
79.251.226.199	AS3320 Deutsche Telekom AG	`10.60ms` from Frankfurt am Main, DE
151.177.188.39	AS1257 Tele2 Sverige AB	`4.58ms` from Goeteborg, SE
120.196.65.39	AS9808 China Mobile Communications Group Co., Ltd.	`4.03ms` from Guangzhou, CN
181.198.216.135	AS27947 Telconet S.A	`2.20ms` from Guayaquil, EC
23.54.49.199	AS16625 Akamai Technologies, Inc.	`0.25ms` from Jakarta, ID
187.61.236.151	AS28220 Alares Cabo Servicos de Telecomunicacoes S.A.	`3.29ms` from Joao Pessoa, BR
31.22.242.215	AS42863 MEO - SERVICOS DE COMUNICACOES E MULTIMEDIA S.A.	`8.70ms` from Lisbon, PT
209.151.248.87	AS4213 Krypt Technologies	`0.57ms` from Los Angeles, US
95.179.43.183	AS12389 PJSC Rostelecom	`8.34ms` from Moscow, RU
114.189.73.39	AS4713 NTT DOCOMO BUSINESS,Inc.	`5.34ms` from Osaka, JP
59.31.157.103	AS4766 Korea Telecom	`2.89ms` from Seoul, KR
121.130.214.55	AS4766 Korea Telecom	`1.36ms` from Seoul, KR
142.202.135.151	AS13576 SOUTH DAKOTA NETWORK	`11.02ms` from Sioux Falls, US
13.55.75.167	AS16509 Amazon.com, Inc.	`0.12ms` from Sydney, AU
177.200.168.215	AS52794 Net Flex Ltda ME	`7.49ms` from São Paulo, BR
202.232.139.87	AS2497 Internet Initiative Japan Inc.	`3.42ms` from Tokyo, JP
77.163.76.199	AS1136 KPN B.V.	`1.09ms` from Amsterdam, NL
108.196.208.23	AS7018 AT&T Enterprises, LLC	`11.88ms` from Atlanta, US
146.70.221.23	AS9009 M247 Europe SRL	`0.10ms` from Belgrade, RS
62.157.238.183	AS3320 Deutsche Telekom AG	`2.42ms` from Frankfurt am Main, DE
92.32.64.247	AS8434 Telenor Sverige AB	`0.79ms` from Goeteborg, SE

Traceroute

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

traceroute -a -n -q1 155.166.196.74

traceroute to 155.166.196.74 (155.166.196.74): 64 hops max, 52 byte packets

1 [AS50613] 37.235.49.2 155.315 ms

2 [AS20057] 155.166.196.74 277.977 ms

Measurement taken from

IPinfo ProbeNet in Hafnarfjoerdur, IS

On December 28th 2025

What are IP address ranges?

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