1. All IP Ranges
  2. 155.0.0.0/8
  3. 155.166.0.0/16
  4. AS20057  | 155.166.128.0/19

155.166.128.0/19

AS20057  ·  AT&T Enterprises, LLC

Need more data or want to access it via API or data downloads? Sign up to get free access

Sign up for free ›

Summary

Country United States
Domain att.com
ASN AS20057
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:        2025-07-21
OrgAdminHandle: ZS44-ARIN
OrgTechHandle:  ICC-ARIN
OrgTechHandle:  ZS44-ARIN
OrgAbuseHandle: ABUSE7-ARIN
OrgRoutingHandle:   ROUTI59-ARIN
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:        2025-07-03
OfficePhone:    +1-888-876-2382
Mailbox:        rm-ipspecialist@att.com
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:        2025-07-03
OfficePhone:    +1-888-510-5545
Mailbox:        ipadmin@att.com
Mailbox:        ipadmin@semail.att.com
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:        2025-07-03
OfficePhone:    +1-919-319-8167
Mailbox:        abuse@att.net
Source:         ARIN

Nearby Ranges

BGP prefixes that overlap with 155.166.0.0/16

Range ASN Company Num of IPs
155.166.0.0/17 AS20057 AT&T Enterprises, LLC 32,768
155.166.192.0/18 AS20057 AT&T Enterprises, LLC 16,384
155.166.96.0/19 AS20057 AT&T Enterprises, LLC 8,192
155.166.176.0/20 AS20057 AT&T Enterprises, LLC 4,096
155.166.48.0/20 AS20057 AT&T Enterprises, LLC 4,096
155.166.80.0/20 AS20057 AT&T Enterprises, LLC 4,096
155.166.160.0/20 AS20057 AT&T Enterprises, LLC 4,096
155.166.224.0/21 AS20057 AT&T Enterprises, LLC 2,048
155.166.72.0/21 AS20057 AT&T Enterprises, LLC 2,048
155.166.16.0/22 AS20057 AT&T Enterprises, LLC 1,024
155.166.44.0/22 AS20057 AT&T Enterprises, LLC 1,024
155.166.68.0/22 AS20057 AT&T Enterprises, LLC 1,024
155.166.28.0/22 AS20057 AT&T Enterprises, LLC 1,024
155.166.40.0/22 AS20057 AT&T Enterprises, LLC 1,024
155.166.192.0/22 AS20057 AT&T Enterprises, LLC 1,024
155.166.32.0/22 AS20057 AT&T Enterprises, LLC 1,024
155.166.64.0/22 AS20057 AT&T Enterprises, LLC 1,024
155.166.20.0/23 AS20057 AT&T Enterprises, LLC 512
155.166.24.0/23 AS20057 AT&T Enterprises, LLC 512
155.166.38.0/23 AS20057 AT&T Enterprises, LLC 512
155.166.196.0/23 AS20057 AT&T Enterprises, LLC 512
155.166.202.0/23 AS20057 AT&T Enterprises, LLC 512
155.166.62.0/24 AS20057 AT&T Enterprises, LLC 256
155.166.1.0/24 AS20057 AT&T Enterprises, LLC 256
155.166.184.0/24 AS20057 AT&T Enterprises, LLC 256
155.166.185.0/24 AS20057 AT&T Enterprises, LLC 256
155.166.36.0/24 AS20057 AT&T Enterprises, LLC 256

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

2,843 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address ASN Details
155.166.154.95 AS20057 AT&T Enterprises, LLC 17.62ms from Ashburn, US
155.166.137.212 AS20057 AT&T Enterprises, LLC 22.21ms from Manassas, US
155.166.151.22 AS20057 AT&T Enterprises, LLC 23.98ms from Ashburn, US
155.166.149.161 AS20057 AT&T Enterprises, LLC 19.62ms from Ashburn, US
155.166.157.80 AS20057 AT&T Enterprises, LLC 20.31ms from Ashburn, US
155.166.159.16 AS20057 AT&T Enterprises, LLC 19.21ms from Ashburn, US
155.166.148.113 AS20057 AT&T Enterprises, LLC 17.80ms from Reston, US
155.166.128.80 AS20057 AT&T Enterprises, LLC 16.38ms from Ashburn, US
155.166.143.24 AS20057 AT&T Enterprises, LLC 20.52ms from Ashburn, US
155.166.156.121 AS20057 AT&T Enterprises, LLC 18.42ms from Ashburn, US
155.166.155.95 AS20057 AT&T Enterprises, LLC 20.45ms from Ashburn, US
155.166.140.223 AS20057 AT&T Enterprises, LLC 18.30ms from Reston, US
155.166.146.123 AS20057 AT&T Enterprises, LLC 22.52ms from Ashburn, US
155.166.152.98 AS20057 AT&T Enterprises, LLC 20.81ms from Manassas, US
155.166.145.217 AS20057 AT&T Enterprises, LLC 17.29ms from Reston, US
155.166.147.234 AS20057 AT&T Enterprises, LLC 18.98ms from Ashburn, US
155.166.150.125 AS20057 AT&T Enterprises, LLC 17.55ms from Reston, US
155.166.138.48 AS20057 AT&T Enterprises, LLC 19.14ms from Reston, US
155.166.134.251 AS20057 AT&T Enterprises, LLC 22.82ms from Ashburn, US
155.166.129.153 AS20057 AT&T Enterprises, LLC 22.62ms from Reston, US
155.166.135.6 AS20057 AT&T Enterprises, LLC 18.25ms from Reston, US
155.166.131.95 AS20057 AT&T Enterprises, LLC 21.28ms from Ashburn, US
155.166.130.32 AS20057 AT&T Enterprises, LLC 24.13ms from Ashburn, US
155.166.153.255 AS20057 AT&T Enterprises, LLC 20.91ms from Ashburn, US
155.166.139.188 AS20057 AT&T Enterprises, LLC 22.52ms from Reston, 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
173.236.138.51 AS26347 New Dream Network, LLC 0.30ms from Ashburn, US
84.184.216.179 AS3320 Deutsche Telekom AG 3.38ms from Berlin, DE
137.116.76.19 AS8075 Microsoft Corporation 0.35ms from Boydton, US
70.60.245.243 AS11426 Charter Communications Inc 0.41ms from Charlotte, US
66.202.100.115 AS7029 Windstream Communications LLC 10.39ms from Chicago, US
79.110.161.3 AS200304 Everyday Communications LTD 0.74ms from Coventry, GB
91.15.41.51 AS3320 Deutsche Telekom AG 5.29ms from Frankfurt am Main, DE
187.133.17.211 AS8151 UNINET 5.78ms from Guadalajara, MX
90.204.201.3 AS5607 Sky UK Limited 7.56ms from London, GB
76.79.212.211 AS20001 Charter Communications Inc 1.67ms from Los Angeles, US
135.196.238.99 AS3257 GTT Communications Inc. 0.25ms from Los Angeles, US
194.50.131.3 AS59793 Corporate Internet Service Provider LLC 1.19ms from Moscow, RU
62.4.2.195 AS12876 SCALEWAY S.A.S. 0.50ms from Paris, FR
44.215.205.19 AS14618 Amazon.com, Inc. 0.23ms from Reston, US
189.180.77.227 AS8151 UNINET 1.03ms from Santiago de Queretaro, MX
147.46.97.3 AS9488 Seoul National University 0.76ms from Seoul, KR
31.162.37.243 AS12389 PJSC Rostelecom 8.04ms from Yekaterinburg, RU
79.142.94.3 AS43370 OBIT-telecommunications, LLC 0.43ms from Almaty, KZ
195.251.209.83 AS12364 University of Macedonia, Economic and Social Sciences 9.77ms from Athens, GR
97.156.104.51 AS6167 Verizon Business 15.57ms from Chicago, US
169.46.101.227 AS36351 IBM Cloud 0.87ms from Dallas, US
108.81.87.227 AS7018 AT&T Enterprises, LLC 3.21ms from Dallas, US
3.125.103.227 AS16509 Amazon.com, Inc. 0.17ms from Frankfurt am Main, DE
93.204.38.83 AS3320 Deutsche Telekom AG 3.13ms from Frankfurt am Main, DE
27.152.54.115 AS4134 CHINANET-BACKBONE 4.50ms from Fuzhou, CN

What are IP address ranges?

IP address ranges, or netblocks, are groups of related IP addresses. They are usually represented as a base IP address, followed by a slash, and then a netmask which represents how many IP addresses are contained within the netblock. This format is known as CIDR. You'll also sometimes see netblocks given as a start ip address, and an end ip address, or an ip address range.

Traffic works its way around the internet based on the routing table, which contains a list of networks and their associated netblocks.

An API built with users in mind: reliable, accurate, and easy-to-use

Discover why industry-leading companies around the globe love our data. IPinfo's accurate insights fuel use cases from cybersecurity, data enrichment, web personalization, and much more.

Get Started for Free Contact Sales
IPinfo for all your IP geolocation needs

Our IP tools

Explore all tools
What is my IP

What is my IP

Test our data accuracy by viewing insights from your IP address.

See your IP address
Map IPs

Map IPs

Paste up to 500,000 IPs to see where they're located on a map.

Try Map IPs
Summarize IPs

Summarize IPs

Use our data visualization tool to create a visual overview of multiple IPs.

Try Summarize IPs