166.137.143.0/24

AS20057 · AT&T Enterprises, LLC

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Summary

Country	United States
Domain	att.com
ASN	AS20057
Registry	ARIN
ID	AEL-360

WHOIS Details

NetHandle:      NET-166-128-0-0-1
OrgID:          AEL-360
Parent:         NET-166-0-0-0-0
NetName:        AEL-360
NetRange:       166.128.0.0 - 166.138.255.255
NetType:        allocation
RegDate:        2025-04-01
Updated:        2025-04-01
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:      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


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

Nearby Ranges

BGP prefixes that overlap with 166.137.0.0/16

No nearby ranges found.

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

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Useful for Cybersecurity

Read more

Pingable IPs

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

IP Address	ASN	Details
166.137.143.32	AS20057 AT&T Enterprises, LLC	`1.94ms` from Dallas, 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
80.60.247.248	AS1136 KPN B.V.	`2.37ms` from Amsterdam, NL
214.47.33.56	AS5972 United States Department of Defense (DoD)	`4.50ms` from Ashburn, US
73.154.53.40	AS7922 Comcast Cable Communications, LLC	`9.79ms` from Ashburn, US
114.75.98.8	AS4804 Microplex PTY LTD	`2.30ms` from Brisbane, AU
101.206.131.152	AS4837 CHINA UNICOM China169 Backbone	`6.28ms` from Chengdu, CN
23.26.128.248	AS20473 The Constant Company, LLC	`0.17ms` from Piscataway, US
73.48.196.248	AS7922 Comcast Cable Communications, LLC	`13.33ms` from San Jose, US
24.36.157.248	AS7992 Cogeco Connexion Inc.	`5.02ms` from Toronto, CA
131.130.31.8	AS760 Vienna University Computer Center	`0.83ms` from Vienna, AT
128.63.41.8	AS13 Headquarters, USAISC	`0.42ms` from Ashburn, US
99.30.165.216	AS7018 AT&T Enterprises, LLC	`7.83ms` from Columbus, US
62.78.131.184	AS16086 DNA Oyj	`3.12ms` from Helsinki, FI
90.249.175.216	AS5378 Vodafone Limited	`6.42ms` from London, GB
23.204.146.232	AS20940 Akamai International B.V.	`0.70ms` from Los Angeles, US
67.254.208.56	AS12271 Charter Communications Inc	`3.96ms` from New York City, US
213.88.34.40	AS12714 PJSC MegaFon	`17.26ms` from Samara, RU
20.247.200.8	AS8075 Microsoft Corporation	`0.23ms` from Singapore, SG
126.9.210.120	AS17676 SoftBank Corp.	`5.54ms` from Tokyo, JP
153.215.189.248	AS4713 NTT DOCOMO BUSINESS,Inc.	`1.60ms` from Tokyo, JP
34.17.13.136	AS396982 Google LLC	`0.13ms` from Turin, IT
72.207.185.56	AS22773 Cox Communications Inc.	`9.30ms` from Los Angeles, US
73.204.143.200	AS7922 Comcast Cable Communications, LLC	`5.68ms` from Miami, US
194.242.208.56	AS3302 Retelit Digital Services S.p.A.	`9.43ms` from Milan, IT
82.49.234.40	AS3269 Telecom Italia S.p.A.	`6.69ms` from Rende, IT
115.120.34.56	AS55990 Huawei Cloud Service data center	`7.16ms` from Shanghai, CN

Traceroute

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

traceroute -a -n -q1 166.137.143.17

traceroute to 166.137.143.17 (166.137.143.17): 64 hops max, 52 byte packets

1 [AS50613] 37.235.49.2 567.711 ms

2 [AS20057] 166.137.143.17 144.165 ms

Measurement taken from

IPinfo ProbeNet in Hafnarfjoerdur, IS

On March 20th 2026

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.

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