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:      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:      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:      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
166.20.0.0/16 AS243 L3Harris Technologies, Inc. 65,536
166.69.0.0/16 AS19773 Motorola MNIC 65,536
166.100.0.0/16 AS2687 AT&T Japan K.K. 65,536
166.56.0.0/16 AS3371 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
166.82.0.0/16 AS7029 Windstream Communications LLC 65,536
166.123.0.0/16 AS13506 United States Department of the Treasury 65,536
166.211.0.0/16 AS6167 Verizon Business 65,536
166.56.0.0/16 AS3372 Verizon Business 65,536
166.84.0.0/16 AS2033 Panix 65,536
166.111.0.0/16 AS4538 Tsinghua University 65,536
166.102.0.0/16 AS7029 Windstream Communications LLC 65,536
166.91.0.0/16 AS33084 District of Columbia Public Schools 65,536
166.58.0.0/16 AS3377 Verizon Business 65,536
166.70.0.0/16 AS6315 XMission, L.C. 65,536
166.104.0.0/16 AS9321 Hanyang University 65,536
166.94.0.0/16 AS3926 Fairfax County Government 65,536
166.58.0.0/16 AS3372 Verizon Business 65,536
166.93.0.0/16 AS26914 Synoptek, LLC 65,536
166.19.0.0/16 AS33425 CoreWeave, Inc 65,536
166.58.0.0/16 AS3371 Verizon Business 65,536
166.90.0.0/16 AS3257 Level 3 Parent, LLC 65,536
166.211.0.0/16 AS22394 Verizon Business 65,536
166.99.0.0/16 AS11719 Eaton Corporation 65,536
166.122.0.0/16 AS6360 University of Hawaii 65,536
166.89.0.0/16 AS13918 City of Tucson 65,536
166.72.0.0/16 AS7018 AT&T Enterprises, LLC 65,536
166.90.0.0/16 AS3356 Level 3 Parent, LLC 65,536
166.87.0.0/16 AS5080 Saudi Arabian Oil Company 65,536
166.91.0.0/16 AS14072 District of Columbia Public Schools 65,536
166.80.0.0/16 AS16509 Amazon.com, Inc. 65,536
166.74.0.0/16 AS16509 Amazon.com, Inc. 65,536
166.117.0.0/16 AS16509 Amazon.com, Inc. 65,536
166.49.128.0/17 AS5400 communications networking services Private Unlimited Company 32,768
166.48.0.0/17 AS396338 Altima Telecom 32,768
166.49.0.0/17 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
166.63.160.0/19 AS1273 Vodafone Americas 8,192
166.114.32.0/19 AS6568 EMPRESA NACIONAL DE TELECOMUNICACIONES SOCIEDAD ANONIMA 8,192
166.63.128.0/19 AS3561 CenturyLink Communications, LLC 8,192
166.113.0.0/19 AS19870 Cherry Creek School District #5 8,192
166.113.32.0/19 AS13370 Ziply Fiber 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.
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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
166.186.197.3 AS20057 AT&T Enterprises, LLC 93.19ms from Houston, US
166.186.196.222 AS20057 AT&T Enterprises, LLC 22.13ms from Houston, US
166.186.48.47 AS20057 AT&T Enterprises, LLC 22.14ms from Ashburn, US
166.186.2.133 AS20057 AT&T Enterprises, LLC 2.04ms from Ashburn, US
166.186.3.208 AS20057 AT&T Enterprises, LLC 3.51ms from Ashburn, US
166.186.115.16 AS20057 AT&T Enterprises, LLC 45.11ms from Ashburn, US
166.186.112.6 AS20057 AT&T Enterprises, LLC 40.79ms from Ashburn, US
166.186.113.106 AS20057 AT&T Enterprises, LLC 105.76ms 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
138.74.203.128 AS15108 Allo Communications LLC 5.76ms from Denver, US
20.165.233.160 AS8075 Microsoft Corporation 3.25ms from Denver, US
130.61.7.0 AS31898 Oracle Corporation 0.21ms from Frankfurt am Main, DE
113.88.58.144 AS4134 CHINANET-BACKBONE 6.59ms from Guangzhou, CN
212.135.236.0 AS212238 Datacamp Limited 0.14ms from Madrid, ES
189.159.52.208 AS8151 UNINET 1.81ms from Monterrey, MX
109.108.51.80 AS12389 PJSC Rostelecom 15.01ms from Moscow, RU
95.221.189.208 AS12714 PJSC MegaFon 2.04ms from Moscow, RU
176.124.121.112 AS52043 LLC "Multiservice" 18.54ms from Moscow, RU
180.179.69.80 AS17439 NTT COMMUNICATIONS INDIA NETWORK SERVICES PRIVATE LIMITED 1.73ms from Mumbai, IN
24.46.194.64 AS6128 Cablevision Systems Corp. 6.90ms from New York City, US
176.181.138.208 AS5410 Bouygues Telecom SA 6.62ms from Paris, FR
20.200.62.176 AS8075 Microsoft Corporation 0.17ms from Quebec, CA
133.232.169.224 AS2514 NTT PC Communications, Inc. 3.19ms from Tokyo, JP
121.25.23.144 AS4837 CHINA UNICOM China169 Backbone 5.87ms from Beijing, CN
172.234.199.48 AS63949 Akamai Connected Cloud 0.29ms from Chicago, US
9.223.187.224 AS8075 Microsoft Corporation 0.16ms from Gaevle, SE
213.221.144.240 AS15547 netplus.ch SA 0.44ms from Geneve, CH
119.206.189.64 AS4766 Korea Telecom 6.55ms from Incheon, KR
77.120.186.0 AS25229 Limited Liability Company "KYIVSKI TELEKOMUNIKATSIYNI MEREZHI" 0.77ms from Kharkiv, UA
154.61.72.176 AS174 Cogent Communications, LLC 0.90ms from Mumbai, IN
52.149.29.48 AS8075 Microsoft Corporation 0.31ms from Quincy, US
62.116.226.144 AS16117 Gavle Energi AB 3.34ms from Stockholm, SE
20.92.171.160 AS8075 Microsoft Corporation 0.67ms from Sydney, AU
71.132.56.144 AS55960 Beijing Guanghuan Xinwang Digital 3.52ms from Beijing, CN

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 166.186.70.63
traceroute to 166.186.70.63 (166.186.70.63): 6 hops max, 52 byte packets
2 [AS47447] 212.83.33.9 0.318 ms
4 *
5 *
6 *
Measurement taken from IPinfo ProbeNet in Frankfurt am Main, DE
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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