1. All IP Ranges
  2. 166.0.0.0/8
  3. 166.137.0.0/16
  4. AS20057  | 166.137.0.0/16

166.137.0.0/16

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:      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:        [email protected]
Mailbox:        [email protected]
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:        [email protected]
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:        [email protected]
Source:         ARIN

Nearby Ranges

BGP prefixes that overlap with 166.0.0.0/8

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

IP Address Domain Domains on this IP
166.137.83.45 biccochi.net 1
166.137.242.66 metrokc.net 1

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

2,315 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address ASN Details
166.137.17.11 AS20057 AT&T Enterprises, LLC 1.35ms from Atlanta, US
166.137.118.90 AS20057 AT&T Enterprises, LLC 1.40ms from Dallas, US
166.137.16.101 AS20057 AT&T Enterprises, LLC 1.38ms from Atlanta, US
166.137.83.61 AS20057 AT&T Enterprises, LLC 7.94ms from Columbus, US
166.137.139.23 AS20057 AT&T Enterprises, LLC 1.43ms from Dallas, US
166.137.161.16 AS20057 AT&T Enterprises, LLC 2.93ms from San Jose, US
166.137.222.131 AS20057 AT&T Enterprises, LLC 4.24ms from Atlanta, US
166.137.113.21 AS20057 AT&T Enterprises, LLC 1.25ms from Dallas, US
166.137.126.22 AS20057 AT&T Enterprises, LLC 1.39ms from Dallas, US
166.137.143.34 AS20057 AT&T Enterprises, LLC 1.39ms from Dallas, US
166.137.163.14 AS20057 AT&T Enterprises, LLC 2.36ms from San Jose, US
166.137.112.100 AS20057 AT&T Enterprises, LLC 1.30ms from Dallas, US
166.137.115.73 AS20057 AT&T Enterprises, LLC 1.24ms from Dallas, US
166.137.173.41 AS20057 AT&T Enterprises, LLC 0.77ms from New York City, US
166.137.138.107 AS20057 AT&T Enterprises, LLC 3.56ms from San Jose, US
166.137.244.46 AS20057 AT&T Enterprises, LLC 1.69ms from Ashburn, US
166.137.136.89 AS20057 AT&T Enterprises, LLC 1.38ms from Dallas, US
166.137.171.26 AS20057 AT&T Enterprises, LLC 1.89ms from Seattle, US
166.137.169.23 AS20057 AT&T Enterprises, LLC 1.93ms from Seattle, US
166.137.125.112 AS20057 AT&T Enterprises, LLC 1.68ms from Dallas, US
166.137.81.41 AS20057 AT&T Enterprises, LLC 7.97ms from Columbus, US
166.137.140.132 AS20057 AT&T Enterprises, LLC 4.30ms from Houston, US
166.137.246.18 AS20057 AT&T Enterprises, LLC 1.43ms from Los Angeles, US
166.137.175.47 AS20057 AT&T Enterprises, LLC 0.76ms from New York City, US
166.137.160.100 AS20057 AT&T Enterprises, LLC 2.69ms 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
223.205.86.240 AS45758 Triple T Broadband Public Company Limited 9.43ms from Bangkok, TH
16.144.131.128 AS16509 Amazon.com, Inc. 0.12ms from Boardman, US
87.166.37.64 AS3320 Deutsche Telekom AG 9.61ms from Frankfurt am Main, DE
79.212.127.96 AS3320 Deutsche Telekom AG 3.46ms from Hamburg, DE
80.211.120.208 AS31034 Aruba S.p.A. 1.21ms from Milan, IT
15.222.35.112 AS16509 Amazon.com, Inc. 0.93ms from Montreal, CA
213.194.255.32 AS207187 TKR Jasek, s.r.o. 15.09ms from Prague, CZ
211.194.233.96 AS4766 Korea Telecom 6.12ms from Seoul, KR
219.219.14.32 AS4538 China Education and Research Network Center 10.87ms from Shanghai, CN
196.189.61.48 AS24757 Ethio Telecom 1.09ms from Addis Ababa, ET
197.204.255.128 AS36947 Telecom Algeria 19.39ms from Algiers, DZ
92.65.49.48 AS1136 KPN B.V. 0.82ms from Amsterdam, NL
109.61.86.48 AS60068 Datacamp Limited 0.13ms from Boston, US
23.36.4.16 AS9498 BHARTI Airtel Ltd. 0.65ms from Chennai, IN
117.207.23.192 AS9829 National Internet Backbone 5.51ms from Delhi, IN
86.172.131.0 AS2856 British Telecommunications PLC 4.23ms from Erith, GB
20.52.55.32 AS8075 Microsoft Corporation 0.23ms from Frankfurt am Main, DE
68.51.247.48 AS7922 Comcast Cable Communications, LLC 9.66ms from Grand Rapids, US
103.241.73.192 AS152194 CTG Server Limited 0.59ms from Hong Kong, HK
187.1.161.160 AS28252 WorldNet Telecom Comercio e Serviços de Telecomuni 2.43ms from Joao Pessoa, BR
60.22.240.112 AS4837 CHINA UNICOM China169 Backbone 9.77ms from Liaoyang, CN
62.49.225.48 AS5378 Vodafone Limited 3.68ms from London, GB
46.27.136.80 AS12430 VODAFONE ESPANA S.A.U. 12.08ms from Madrid, ES
104.236.75.144 AS14061 DigitalOcean, LLC 0.24ms from New York City, US
36.239.247.192 AS3462 Data Communication Business Group 4.61ms from Taichung, TW

Traceroute

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

$
traceroute -a -n -q1 -m5 166.137.26.30
traceroute to 166.137.26.30 (166.137.26.30): 5 hops max, 52 byte packets
1 [AS15169] 142.251.49.148 126.478 ms
2 [AS15169] 108.170.252.46 126.626 ms
3 *
4 *
5 *
Measurement taken from IPinfo ProbeNet in Chang-hua, TW
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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