1. All IP Ranges
  2. 166.0.0.0/8
  3. 166.200.0.0/16
  4. AS20057  | 166.200.0.0/16

166.200.0.0/16

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-166-183-0-0-1
OrgID:          AEL-360
Parent:         NET-166-0-0-0-0
NetName:        AEL-360
NetRange:       166.183.0.0 - 166.209.255.255
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:         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

Nearby Ranges

BGP prefixes that overlap with 166.0.0.0/8

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

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

IP Address ASN Details
166.200.186.1 AS20057 AT&T Enterprises, LLC 22.97ms from Houston, US
166.200.161.202 AS20057 AT&T Enterprises, LLC 63.53ms from San Jose, US
166.200.160.144 AS20057 AT&T Enterprises, LLC 2.88ms from Santa Clara, US
166.200.116.157 AS20057 AT&T Enterprises, LLC 2.10ms from Ashburn, US
166.200.36.42 AS20057 AT&T Enterprises, LLC 18.91ms from Dallas, US
166.200.113.5 AS20057 AT&T Enterprises, LLC 31.79ms from Dallas, US
166.200.0.214 AS20057 AT&T Enterprises, LLC 45.47ms from Dallas, US
166.200.117.2 AS20057 AT&T Enterprises, LLC 30.75ms from Dallas, US
166.200.4.13 AS20057 AT&T Enterprises, LLC 31.69ms from Houston, 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
134.90.233.240 AS48500 Irpinia Net-Com SRL 12.45ms from Arezzo, IT
113.206.36.32 AS4837 CHINA UNICOM China169 Backbone 5.20ms from Chongqing, CN
68.253.131.240 AS7018 AT&T Enterprises, LLC 7.25ms from Dallas, US
115.225.193.224 AS4134 CHINANET-BACKBONE 7.06ms from Hangzhou, CN
113.167.215.112 AS45899 VNPT Corp 6.00ms from Hanoi, VN
87.28.87.0 AS3269 Telecom Italia S.p.A. 3.29ms from Milan, IT
82.107.43.0 AS3269 Telecom Italia S.p.A. 3.95ms from Rome, IT
13.65.122.192 AS8075 Microsoft Corporation 0.26ms from San Antonio, US
61.102.79.0 AS17839 LG HelloVision Corp. 1.50ms from Seoul, KR
49.169.218.96 AS17858 LG POWERCOMM 2.06ms from Seoul, KR
82.162.181.192 AS12389 PJSC Rostelecom 0.88ms from Vladivostok, RU
198.144.191.224 AS36352 HostPapa 0.10ms from Buffalo, US
106.215.77.224 AS24560 Bharti Airtel Ltd., Telemedia Services 9.65ms from Delhi, IN
5.32.46.64 AS15802 Emirates Integrated Telecommunications Company PJSC 2.91ms from Dubai, AE
20.54.85.48 AS8075 Microsoft Corporation 0.58ms from Dublin, IE
116.62.174.240 AS37963 Hangzhou Alibaba Advertising Co.,Ltd. 4.31ms from Hangzhou, CN
123.153.119.32 AS4837 CHINA UNICOM China169 Backbone 11.46ms from Hangzhou, CN
86.154.7.160 AS2856 British Telecommunications PLC 4.61ms from London, GB
172.119.98.48 AS20001 Charter Communications Inc 5.62ms from Los Angeles, US
72.245.75.0 AS6079 RCN 1.53ms from New York City, US
220.117.233.192 AS4766 Korea Telecom 1.13ms from Seoul, KR
54.248.126.224 AS16509 Amazon.com, Inc. 0.19ms from Tokyo, JP
41.103.152.96 AS36947 Telecom Algeria 13.94ms from Valencia, ES
94.190.97.96 AS48524 INTERRA telecommunications group, Ltd. 1.19ms from Yekaterinburg, RU
172.183.120.112 AS8075 Microsoft Corporation 0.45ms from Chicago, 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 166.200.48.246
traceroute to 166.200.48.246 (166.200.48.246): 6 hops max, 52 byte packets
4 *
5 *
6 *
Measurement taken from IPinfo ProbeNet in Amsterdam, NL
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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