1. All IP Ranges
  2. 166.0.0.0/8
  3. 166.136.0.0/16
  4. AS20057  | 166.136.0.0/16

166.136.0.0/16

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:      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:        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:        2025-08-18
OfficePhone:    +1-888-876-2382
Mailbox:        rm-ipspecialist@att.com
Source:         ARIN

Nearby Ranges

BGP prefixes that overlap with 166.0.0.0/8

Range ASN Company Num of IPs
166.74.0.0/16 AS16509 Amazon.com, Inc. 65,536
166.69.0.0/16 AS19773 Motorola MNIC 65,536
166.211.0.0/16 AS22394 Verizon Business 65,536
166.238.0.0/16 AS26611 COMUNICACIÓN CELULAR S.A. COMCEL S.A. 65,536
166.80.0.0/16 AS16509 Amazon.com, Inc. 65,536
166.123.0.0/16 AS13506 United States Department of the Treasury 65,536
166.89.0.0/16 AS13918 City of Tucson 65,536
166.20.0.0/16 AS243 L3Harris Technologies, Inc. 65,536
166.99.0.0/16 AS11719 Eaton Corporation 65,536
166.58.0.0/16 AS3377 Verizon Business 65,536
166.84.0.0/16 AS2033 Panix 65,536
166.56.0.0/16 AS3372 Verizon Business 65,536
166.93.0.0/16 AS26914 Synoptek, LLC 65,536
166.72.0.0/16 AS7018 AT&T Enterprises, LLC 65,536
166.82.0.0/16 AS7029 Windstream Communications LLC 65,536
166.92.0.0/16 AS16509 Amazon.com, Inc. 65,536
166.102.0.0/16 AS7029 Windstream Communications LLC 65,536
166.100.0.0/16 AS2687 AT&T Japan K.K. 65,536
166.94.0.0/16 AS3926 Fairfax County Government 65,536
166.90.0.0/16 AS3257 Level 3 Parent, LLC 65,536
166.56.0.0/16 AS3371 Verizon Business 65,536
166.58.0.0/16 AS3372 Verizon Business 65,536
166.70.0.0/16 AS6315 XMission, L.C. 65,536
166.58.0.0/16 AS3371 Verizon Business 65,536
166.91.0.0/16 AS14072 District of Columbia Public Schools 65,536
166.122.0.0/16 AS6360 University of Hawaii 65,536
166.90.0.0/16 AS3356 Level 3 Parent, LLC 65,536
166.111.0.0/16 AS4538 Tsinghua University 65,536
166.104.0.0/16 AS9321 Hanyang University 65,536
166.87.0.0/16 AS5080 Saudi Arabian Oil Company 65,536
166.117.0.0/16 AS16509 Amazon.com, Inc. 65,536
166.19.0.0/16 AS33425 CoreWeave, Inc 65,536
166.91.0.0/16 AS33084 District of Columbia Public Schools 65,536
166.211.0.0/16 AS6167 Verizon Business 65,536
166.49.128.0/17 AS5400 communications networking services Private Unlimited Company 32,768
166.49.0.0/17 AS3561 CenturyLink Communications, LLC 32,768
166.62.128.0/17 AS5769 Videotron Ltee 32,768
166.114.128.0/17 AS6568 EMPRESA NACIONAL DE TELECOMUNICACIONES SOCIEDAD ANONIMA 32,768
166.48.0.0/17 AS396338 Altima Telecom 32,768
166.113.64.0/18 AS53449 OEC Fiber 16,384
166.114.64.0/18 AS6568 EMPRESA NACIONAL DE TELECOMUNICACIONES SOCIEDAD ANONIMA 16,384
166.108.128.0/18 AS35077 Netwo SAS 16,384
166.63.128.0/19 AS3561 CenturyLink Communications, LLC 8,192
166.113.32.0/19 AS13370 Ziply Fiber 8,192
166.114.32.0/19 AS6568 EMPRESA NACIONAL DE TELECOMUNICACIONES SOCIEDAD ANONIMA 8,192
166.63.192.0/19 AS1273 Vodafone Americas 8,192
166.113.0.0/19 AS19870 Cherry Creek School District #5 8,192
166.108.0.0/19 AS16509 Amazon.com, Inc. 8,192
166.63.160.0/19 AS1273 Vodafone Americas 8,192
166.114.16.0/20 AS6568 EMPRESA NACIONAL DE TELECOMUNICACIONES SOCIEDAD ANONIMA 4,096

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

1,337 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address ASN Details
166.136.164.207 AS20057 AT&T Enterprises, LLC 24.34ms from Houston, US
166.136.174.116 AS20057 AT&T Enterprises, LLC 19.59ms from Atlanta, US
166.136.169.237 AS20057 AT&T Enterprises, LLC 63.96ms from Santa Clara, US
166.136.171.153 AS20057 AT&T Enterprises, LLC 20.01ms from Houston, US
166.136.160.73 AS20057 AT&T Enterprises, LLC 26.87ms from San Jose, US
166.136.172.46 AS20057 AT&T Enterprises, LLC 17.95ms from Atlanta, US
166.136.175.102 AS20057 AT&T Enterprises, LLC 22.51ms from Atlanta, US
166.136.165.72 AS20057 AT&T Enterprises, LLC 20.28ms from Houston, US
166.136.168.129 AS20057 AT&T Enterprises, LLC 23.06ms from Ashburn, US
166.136.178.134 AS20057 AT&T Enterprises, LLC 54.63ms from Fremont, US
166.136.167.116 AS20057 AT&T Enterprises, LLC 20.61ms from Houston, US
166.136.161.28 AS20057 AT&T Enterprises, LLC 21.55ms from Ashburn, US
166.136.170.221 AS20057 AT&T Enterprises, LLC 26.13ms from Dallas, US
166.136.148.14 AS20057 AT&T Enterprises, LLC 24.10ms from Greenwood Village, US
166.136.173.17 AS20057 AT&T Enterprises, LLC 24.05ms from Greenwood Village, US
166.136.163.133 AS20057 AT&T Enterprises, LLC 31.12ms from Atlanta, US
166.136.166.128 AS20057 AT&T Enterprises, LLC 23.86ms from Houston, US
166.136.179.196 AS20057 AT&T Enterprises, LLC 21.05ms 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
80.240.136.32 AS14061 DigitalOcean, LLC 0.23ms from Amsterdam, NL
32.209.50.32 AS46690 Southern New England Telephone Company and SNET America, Inc. 12.44ms from Ashburn, US
20.231.29.208 AS8075 Microsoft Corporation 0.45ms from Ashburn, US
124.64.45.160 AS4808 China Unicom Beijing Province Network 3.65ms from Beijing, CN
110.244.24.80 AS4837 CHINA UNICOM China169 Backbone 7.39ms from Beijing, CN
20.113.198.192 AS8075 Microsoft Corporation 0.97ms from Berlin, DE
31.59.158.0 AS48678 PENTECH BILISIM TEKNOLOJILERI SANAYI VE TICARET LIMITED SIRKETi 0.17ms from Bursa, TR
68.151.211.128 AS6327 Shaw Communications 8.47ms from Calgary, CA
67.22.138.176 AS13767 DataBank Holdings, Ltd. 1.27ms from Dallas, US
108.166.87.192 AS33070 Rackspace Hosting 1.14ms from Dallas, US
108.249.246.0 AS7018 AT&T Enterprises, LLC 6.61ms from Dallas, US
76.142.219.176 AS7922 Comcast Cable Communications, LLC 5.97ms from Houston, US
73.206.170.64 AS7922 Comcast Cable Communications, LLC 4.34ms from Houston, US
46.181.221.240 AS39927 E-Light-Telecom Ltd. 1.27ms from Kemerovo, RU
81.97.75.80 AS5089 Virgin Media Limited 5.95ms from London, GB
203.214.82.224 AS7545 TPG Telecom Limited 1.70ms from Melbourne, AU
219.125.33.16 AS2516 KDDI CORPORATION 15.79ms from Osaka, JP
121.181.100.16 AS4766 Korea Telecom 4.91ms from Seoul, KR
219.112.236.16 AS18127 Ibaraki Prefectural Government 2.68ms from Tokyo, JP
213.27.212.16 AS8220 COLT Technology Services Group Limited 5.97ms from Zaragoza, ES
43.192.146.192 AS135629 Ningxia West Cloud Data Technology Co.Ltd. 2.29ms from Zhongwei, CN
173.231.248.96 AS54641 InMotion Hosting, Inc. 0.32ms from Ashburn, US
218.201.19.80 AS9808 China Mobile Communications Group Co., Ltd. 1.36ms from Chongqing, CN
20.166.29.48 AS8075 Microsoft Corporation 0.15ms from Dublin, IE
212.189.174.128 AS137 Consortium GARR 0.66ms from Milan, IT

Traceroute

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

$
traceroute -a -n -q1 -m7 166.136.252.203
traceroute to 166.136.252.203 (166.136.252.203): 7 hops max, 52 byte packets
5 *
6 *
7 *
Measurement taken from IPinfo ProbeNet in Allentown, US
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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