166.137.128.0/17

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:      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:      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:      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 4 domain names hosted across 4 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address Domain Domains on this IP

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

Pingable IPs

1,225 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address ASN Details
166.137.171.34 AS20057 AT&T Enterprises, LLC 1.96ms from Seattle, US
166.137.252.52 AS20057 AT&T Enterprises, LLC 0.74ms from New York City, US
166.137.246.80 AS20057 AT&T Enterprises, LLC 1.46ms from Los Angeles, US
166.137.163.68 AS20057 AT&T Enterprises, LLC 2.65ms from San Jose, US
166.137.247.252 AS20057 AT&T Enterprises, LLC 1.53ms from Los Angeles, US
166.137.173.10 AS20057 AT&T Enterprises, LLC 0.73ms from New York City, US
166.137.169.24 AS20057 AT&T Enterprises, LLC 1.97ms from Seattle, US
166.137.240.78 AS20057 AT&T Enterprises, LLC 1.62ms from Ashburn, US
166.137.136.85 AS20057 AT&T Enterprises, LLC 1.98ms from Dallas, US
166.137.223.3 AS20057 AT&T Enterprises, LLC 1.90ms from Atlanta, US
166.137.248.26 AS20057 AT&T Enterprises, LLC 1.29ms from Atlanta, US
166.137.138.107 AS20057 AT&T Enterprises, LLC 3.58ms from San Jose, US
166.137.168.102 AS20057 AT&T Enterprises, LLC 2.11ms from Seattle, US
166.137.222.131 AS20057 AT&T Enterprises, LLC 4.78ms from Atlanta, US
166.137.242.56 AS20057 AT&T Enterprises, LLC 2.42ms from San Jose, US
166.137.172.102 AS20057 AT&T Enterprises, LLC 1.37ms from New York City, US
166.137.139.20 AS20057 AT&T Enterprises, LLC 1.99ms from Dallas, US
166.137.140.131 AS20057 AT&T Enterprises, LLC 4.14ms from Houston, US
166.137.244.15 AS20057 AT&T Enterprises, LLC 1.63ms from Ashburn, US
166.137.143.75 AS20057 AT&T Enterprises, LLC 1.97ms from Dallas, US
166.137.175.47 AS20057 AT&T Enterprises, LLC 0.64ms from New York City, US
166.137.160.102 AS20057 AT&T Enterprises, LLC 2.44ms from San Jose, US
166.137.161.36 AS20057 AT&T Enterprises, LLC 3.05ms 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
209.150.119.65 AS7055 Quantum Internet Services, Inc. 0.46ms from Ashburn, US
48.211.57.17 AS8075 Microsoft Corporation 0.45ms from Ashburn, US
174.64.114.1 AS22773 Cox Communications Inc. 8.03ms from Atlanta, US
12.150.242.129 AS7018 AT&T Enterprises, LLC 3.60ms from Atlanta, US
103.125.93.17 AS4618 Internet Thailand Company Limited 0.46ms from Bangkok, TH
84.194.74.1 AS6848 Telenet BV 2.25ms from Brussels, BE
181.91.75.1 AS7303 Telecom Argentina S.A. 1.66ms from Buenos Aires, AR
217.52.138.1 AS36992 ETISALAT MISR 7.45ms from Cairo, EG
105.210.190.193 AS16637 MTN SA 10.64ms from Cape Town, ZA
98.121.8.1 AS11426 Charter Communications Inc 4.07ms from Charlotte, US
24.31.212.1 AS11426 Charter Communications Inc 9.67ms from Charlotte, US
45.36.176.1 AS11426 Charter Communications Inc 6.84ms from Charlotte, US
125.22.255.1 AS24560 Bharti Airtel Ltd., Telemedia Services 0.69ms from Chennai, IN
23.112.12.1 AS7018 AT&T Enterprises, LLC 5.41ms from Chicago, US
209.240.48.1 AS36515 Allens Communications 11.83ms from Dallas, US
71.197.24.1 AS7922 Comcast Cable Communications, LLC 2.77ms from Detroit, US
188.246.2.97 AS15987 Portunity GmbH 3.64ms from Duesseldorf, DE
131.108.218.81 AS268545 NNET TELECOMUNICAÇÃO LTDA 14.32ms from Fortaleza, BR
93.232.14.49 AS3320 Deutsche Telekom AG 8.66ms from Frankfurt am Main, DE
91.12.62.113 AS3320 Deutsche Telekom AG 9.47ms from Frankfurt am Main, DE
79.240.235.209 AS3320 Deutsche Telekom AG 4.31ms from Frankfurt am Main, DE
120.84.188.1 AS17816 China Unicom IP network China169 Guangdong province 7.63ms from Guangzhou, CN
70.113.149.241 AS11427 Charter Communications Inc 7.39ms from Houston, US
24.28.159.177 AS11427 Charter Communications Inc 13.37ms from Houston, US
64.19.242.113 AS4913 Speedcast Communications, Inc 1.41ms from Houston, US

Traceroute

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

$
traceroute -a -n -q1 -f2 -m6 166.137.210.144
traceroute to 166.137.210.144 (166.137.210.144): 6 hops max, 52 byte packets
4 *
5 *
6 *
Measurement taken from IPinfo ProbeNet in Halifax, CA
On

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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