166.131.138.0/23

AS20057 · AT&T Enterprises, LLC

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Summary

Country	United States
Domain	att.com
ASN	AS20057
Parent Range	166.131.0.0/16
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:        2025-07-21
OrgAdminHandle: ZS44-ARIN
OrgTechHandle:  ICC-ARIN
OrgTechHandle:  ZS44-ARIN
OrgAbuseHandle: ABUSE7-ARIN
OrgRoutingHandle:   ROUTI59-ARIN
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:      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:      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

Overlapping Ranges

BGP prefixes that contain 166.131.138.0/23

Range	ASN	Company	Num of IPs
166.131.0.0/16	AS20057	AT&T Enterprises, LLC	65,536
166.128.0.0/14	AS20057	AT&T Enterprises, LLC	262,144

Nearby Ranges

BGP prefixes that overlap with 166.131.0.0/16

Range	ASN	Company	Num of IPs
166.128.0.0/14	AS20057	AT&T Enterprises, LLC	262,144
166.131.0.0/16	AS20057	AT&T Enterprises, LLC	65,536
166.131.118.0/23	AS20057	AT&T Enterprises, LLC	512
166.131.176.0/23	AS20057	AT&T Enterprises, LLC	512
166.131.122.0/23	AS20057	AT&T Enterprises, LLC	512
166.131.152.0/23	AS20057	AT&T Enterprises, LLC	512
166.131.124.0/23	AS20057	AT&T Enterprises, LLC	512
166.131.180.0/23	AS20057	AT&T Enterprises, LLC	512
166.131.240.0/23	AS20057	AT&T Enterprises, LLC	512
166.131.154.0/23	AS20057	AT&T Enterprises, LLC	512
166.131.120.0/23	AS20057	AT&T Enterprises, LLC	512
166.131.188.0/23	AS20057	AT&T Enterprises, LLC	512
166.131.174.0/23	AS20057	AT&T Enterprises, LLC	512
166.131.248.0/23	AS20057	AT&T Enterprises, LLC	512
166.131.164.0/23	AS20057	AT&T Enterprises, LLC	512
166.131.182.0/23	AS20057	AT&T Enterprises, LLC	512
166.131.252.0/23	AS20057	AT&T Enterprises, LLC	512
166.131.156.0/23	AS20057	AT&T Enterprises, LLC	512
166.131.233.0/24	AS20057	AT&T Enterprises, LLC	256
166.131.228.0/24	AS20057	AT&T Enterprises, LLC	256
166.131.237.0/24	AS20057	AT&T Enterprises, LLC	256
166.131.226.0/24	AS20057	AT&T Enterprises, LLC	256

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

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Pingable IPs

No IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

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
60.0.99.119	AS4837 CHINA UNICOM China169 Backbone	8.07ms from Beijing, CN
35.95.234.39	AS16509 Amazon.com, Inc.	0.14ms from Boardman, US
172.210.213.183	AS8075 Microsoft Corporation	0.30ms from Boydton, US
3.77.158.55	AS16509 Amazon.com, Inc.	0.14ms from Frankfurt am Main, DE
14.182.116.151	AS45899 VNPT Corp	4.57ms from Hanoi, VN
177.52.52.7	AS28198 SEMPRE TELECOMUNICACOES LTDA	8.59ms from Osasco, BR
222.98.171.167	AS4766 Korea Telecom	1.91ms from Seoul, KR
86.80.136.151	AS1136 KPN B.V.	1.07ms from Amsterdam, NL
23.14.19.87	AS16625 Akamai Technologies, Inc.	0.45ms from Bogota, CO
18.200.161.119	AS16509 Amazon.com, Inc.	0.16ms from Dublin, IE
41.135.59.103	AS20011 Dimension Data	1.59ms from Johannesburg, ZA
86.179.105.23	AS2856 British Telecommunications PLC	4.16ms from London, GB
77.105.162.39	AS41745 Baykov Ilya Sergeevich	0.68ms from New York City, US
83.202.82.231	AS3215 Orange S.A.	2.12ms from Paris, FR
62.85.158.23	AS48179 Pays Voironnais Network	9.08ms from Paris, FR
52.237.238.231	AS8075 Microsoft Corporation	0.71ms from Sydney, AU
20.200.144.39	AS8075 Microsoft Corporation	0.23ms from Dongnae, KR
20.189.30.119	AS8075 Microsoft Corporation	0.26ms from San Antonio, US
61.241.172.39	AS4837 CHINA UNICOM China169 Backbone	10.54ms from Wuhan, CN
24.198.113.183	AS11351 Charter Communications Inc	17.89ms from Chicago, US
176.57.167.103	AS56876 Ociris GmbH	0.46ms from Frankfurt am Main, DE
223.199.224.247	AS4134 CHINANET-BACKBONE	2.31ms from Haikou, CN
51.235.154.23	AS25019 Saudi Telecom Company JSC	2.56ms from Riyadh, SA
61.35.251.231	AS3786 LG DACOM Corporation	2.44ms from Seoul, KR
219.68.162.199	AS9416 Hoshin Multimedia Center Inc.	9.46ms from Taipei, TW

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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