1. All IP Ranges
  2. 166.0.0.0/8
  3. 166.186.0.0/16
  4. AS20057  | 166.186.0.0/16

166.186.0.0/16

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:      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:      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

Nearby Ranges

BGP prefixes that overlap with 166.0.0.0/8

Range ASN Company Num of IPs
166.82.0.0/16 AS7029 Windstream Communications LLC 65,536
166.89.0.0/16 AS13918 City of Tucson 65,536
166.80.0.0/16 AS16509 Amazon.com, Inc. 65,536
166.117.0.0/16 AS16509 Amazon.com, Inc. 65,536
166.91.0.0/16 AS33084 District of Columbia Public Schools 65,536
166.69.0.0/16 AS19773 Motorola MNIC 65,536
166.84.0.0/16 AS2033 Panix 65,536
166.74.0.0/16 AS16509 Amazon.com, Inc. 65,536
166.238.0.0/16 AS26611 COMUNICACIÓN CELULAR S.A. COMCEL S.A. 65,536
166.211.0.0/16 AS22394 Verizon Business 65,536
166.58.0.0/16 AS3371 Verizon Business 65,536
166.56.0.0/16 AS3372 Verizon Business 65,536
166.72.0.0/16 AS7018 AT&T Enterprises, LLC 65,536
166.91.0.0/16 AS14072 District of Columbia Public Schools 65,536
166.92.0.0/16 AS16509 Amazon.com, Inc. 65,536
166.90.0.0/16 AS3356 Level 3 Parent, LLC 65,536
166.102.0.0/16 AS7029 Windstream Communications LLC 65,536
166.111.0.0/16 AS4538 Tsinghua University 65,536
166.93.0.0/16 AS26914 Synoptek, LLC 65,536
166.56.0.0/16 AS3371 Verizon Business 65,536
166.58.0.0/16 AS3372 Verizon Business 65,536
166.123.0.0/16 AS13506 United States Department of the Treasury 65,536
166.94.0.0/16 AS3926 Fairfax County Government 65,536
166.122.0.0/16 AS6360 University of Hawaii 65,536
166.99.0.0/16 AS11719 Eaton Corporation 65,536
166.70.0.0/16 AS6315 XMission, L.C. 65,536
166.90.0.0/16 AS3257 Level 3 Parent, LLC 65,536
166.58.0.0/16 AS3377 Verizon Business 65,536
166.87.0.0/16 AS5080 Saudi Arabian Oil Company 65,536
166.19.0.0/16 AS33425 CoreWeave, Inc 65,536
166.100.0.0/16 AS2687 AT&T Japan K.K. 65,536
166.104.0.0/16 AS9321 Hanyang University 65,536
166.20.0.0/16 AS243 L3Harris Technologies, Inc. 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
166.114.64.0/18 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
166.63.160.0/19 AS1273 Vodafone Americas 8,192
166.113.32.0/19 AS13370 Ziply Fiber 8,192
166.113.0.0/19 AS19870 Cherry Creek School District #5 8,192
166.63.192.0/19 AS1273 Vodafone Americas 8,192
166.108.0.0/19 AS16509 Amazon.com, Inc. 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

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

IP Address ASN Details
166.186.2.133 AS20057 AT&T Enterprises, LLC 26.52ms from Ashburn, US
166.186.3.208 AS20057 AT&T Enterprises, LLC 3.04ms from Ashburn, US
166.186.196.16 AS20057 AT&T Enterprises, LLC 23.23ms from Houston, US
166.186.113.106 AS20057 AT&T Enterprises, LLC 117.50ms from Morris Plains, US
166.186.112.6 AS20057 AT&T Enterprises, LLC 40.45ms from Ashburn, US
166.186.48.47 AS20057 AT&T Enterprises, LLC 23.80ms from Ashburn, US
166.186.197.3 AS20057 AT&T Enterprises, LLC 98.84ms from Dallas, US
166.186.115.16 AS20057 AT&T Enterprises, LLC 41.35ms from Ashburn, 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
98.180.15.80 AS22773 Cox Communications Inc. 11.50ms from Atlanta, US
41.239.72.176 AS8452 TE-AS 4.34ms from Cairo, EG
101.37.210.160 AS37963 Hangzhou Alibaba Advertising Co.,Ltd. 4.83ms from Hangzhou, CN
171.238.62.192 AS7552 Viettel Group 4.52ms from Hanoi, VN
98.195.198.192 AS7922 Comcast Cable Communications, LLC 11.04ms from Houston, US
119.108.238.48 AS4837 CHINA UNICOM China169 Backbone 14.36ms from Liaoyang, CN
83.52.198.80 AS3352 TELEFONICA DE ESPANA S.A.U. 8.36ms from Madrid, ES
66.176.27.64 AS7922 Comcast Cable Communications, LLC 3.34ms from Miami, US
153.160.147.128 AS4713 NTT DOCOMO BUSINESS,Inc. 2.61ms from Osaka, JP
93.91.49.160 AS44489 STARNET, s.r.o. 3.55ms from Prague, CZ
80.212.65.16 AS2119 Telenor Norge AS 8.05ms from Sandefjord, NO
1.11.76.0 AS38091 LG HelloVision Corp. 0.82ms from Seoul, KR
59.28.221.240 AS4766 Korea Telecom 7.33ms from Seoul, KR
121.160.33.224 AS4766 Korea Telecom 1.52ms from Seoul, KR
171.124.67.16 AS4837 CHINA UNICOM China169 Backbone 7.25ms from Taiyuan, CN
4.216.167.176 AS8075 Microsoft Corporation 0.50ms from Tokyo, JP
98.204.43.48 AS7922 Comcast Cable Communications, LLC 8.50ms from Ashburn, US
188.237.73.240 AS8926 Moldtelecom SA 2.89ms from Chisinau, MD
205.156.57.80 AS26100 National Oceanic and Atmospheric Administration 4.34ms from Honolulu, US
107.174.8.144 AS36352 HostPapa 0.32ms from Los Angeles, US
184.164.163.192 AS11776 Breezeline 5.52ms from Miami, US
115.112.186.80 AS4755 TATA Communications formerly VSNL is Leading ISP 0.75ms from Mumbai, IN
202.208.189.64 AS7511 SYNAPSE Co.,Ltd. 18.27ms from Osaka, JP
15.188.189.176 AS16509 Amazon.com, Inc. 0.15ms from Paris, FR
88.100.230.80 AS5610 O2 Czech Republic, a.s. 1.46ms from Prague, CZ

Traceroute

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

$
traceroute -a -n -q1 -f5 -m10 166.186.33.102
traceroute to 166.186.33.102 (166.186.33.102): 10 hops max, 52 byte packets
5 [AS174] 154.54.1.169 0.862 ms
6 [AS174] 154.54.3.209 1.474 ms
7 [AS174] 66.28.4.182 1.392 ms
8 *
9 *
10 *
Measurement taken from IPinfo ProbeNet in New York City, 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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