1. All IP Ranges
  2. 166.0.0.0/8
  3. 166.187.0.0/16
  4. AS20057  | 166.187.0.0/16

166.187.0.0/16

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
166.111.0.0/16 AS4538 Tsinghua University 65,536
166.74.0.0/16 AS16509 Amazon.com, Inc. 65,536
166.69.0.0/16 AS19773 Motorola MNIC 65,536
166.56.0.0/16 AS3371 Verizon Business 65,536
166.90.0.0/16 AS3356 Level 3 Parent, 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
166.91.0.0/16 AS33084 District of Columbia Public Schools 65,536
166.99.0.0/16 AS11719 Eaton Corporation 65,536
166.93.0.0/16 AS26914 Synoptek, LLC 65,536
166.89.0.0/16 AS13918 City of Tucson 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
166.100.0.0/16 AS2687 AT&T Japan K.K. 65,536
166.58.0.0/16 AS3377 Verizon Business 65,536
166.91.0.0/16 AS14072 District of Columbia Public Schools 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
166.94.0.0/16 AS3926 Fairfax County Government 65,536
166.102.0.0/16 AS7029 Windstream Communications LLC 65,536
166.87.0.0/16 AS5080 Saudi Arabian Oil Company 65,536
166.104.0.0/16 AS9321 Hanyang University 65,536
166.122.0.0/16 AS6360 University of Hawaii 65,536
166.211.0.0/16 AS6167 Verizon Business 65,536
166.70.0.0/16 AS6315 XMission, L.C. 65,536
166.48.0.0/17 AS396338 Altima Telecom 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
166.49.128.0/17 AS5400 communications networking services Private Unlimited Company 32,768
166.49.0.0/17 AS3561 CenturyLink Communications, LLC 32,768
166.108.128.0/18 AS35077 Netwo SAS 16,384
166.114.64.0/18 AS6568 EMPRESA NACIONAL DE TELECOMUNICACIONES SOCIEDAD ANONIMA 16,384
166.113.64.0/18 AS53449 OEC Fiber 16,384
166.114.32.0/19 AS6568 EMPRESA NACIONAL DE TELECOMUNICACIONES SOCIEDAD ANONIMA 8,192
166.113.32.0/19 AS13370 Ziply Fiber 8,192
166.63.128.0/19 AS3561 CenturyLink Communications, LLC 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
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Pingable IPs

No IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

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
192.81.75.16 AS396018 Inovalon Inc. 1.54ms from Ashburn, US
199.160.239.176 AS6079 RCN 1.50ms from Ashburn, US
67.232.255.0 AS2379 CenturyLink Communications, LLC 6.34ms from Atlanta, US
105.76.135.128 AS36884 Wana Corporate 11.85ms from Casablanca, MA
41.249.34.80 AS36903 Office National des Postes et Telecommunications ONPT (Maroc Telecom) / IAM 5.41ms from Casablanca, MA
85.238.125.176 AS6876 TENET Scientific Production Enterprise LLC 3.50ms from Chisinau, MD
14.242.204.144 AS45899 VNPT Corp 2.79ms from Ho Chi Minh City, VN
101.185.156.192 AS1221 Telstra Limited 3.39ms from Perth, AU
18.208.202.16 AS14618 Amazon.com, Inc. 0.17ms from Reston, US
24.187.174.144 AS6128 Cablevision Systems Corp. 7.73ms from Secaucus, US
47.101.57.224 AS37963 Hangzhou Alibaba Advertising Co.,Ltd. 1.69ms from Shanghai, CN
115.217.85.192 AS4134 CHINANET-BACKBONE 9.77ms from Shanghai, CN
73.87.174.160 AS7922 Comcast Cable Communications, LLC 5.19ms from Ashburn, US
78.168.235.48 AS9121 Turk Telekomunikasyon Anonim Sirketi 11.45ms from Bursa, TR
73.3.155.48 AS7922 Comcast Cable Communications, LLC 5.70ms from Denver, US
52.28.11.48 AS16509 Amazon.com, Inc. 0.15ms from Frankfurt am Main, DE
222.186.161.240 AS4134 CHINANET-BACKBONE 4.26ms from Huai'an, CN
111.58.43.32 AS9808 China Mobile Communications Group Co., Ltd. 5.53ms from Nanning, CN
84.184.188.208 AS3320 Deutsche Telekom AG 4.38ms from Nuernberg, DE
18.238.100.48 AS16509 Amazon.com, Inc. 0.57ms from Phoenix, US
174.22.217.176 AS209 CenturyLink Communications, LLC 3.23ms from Phoenix, US
13.223.18.160 AS14618 Amazon.com, Inc. 0.18ms from Reston, US
91.222.29.32 AS196797 Joint Stock Company TransTeleCom 8.74ms from Samara, RU
189.142.12.96 AS8151 UNINET 4.97ms from Santiago de Queretaro, MX
61.47.206.0 AS17597 SK Broadband Co Ltd 2.19ms from Seoul, KR

Traceroute

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

$
traceroute -a -n -q1 -f3 -m7 166.187.218.239
traceroute to 166.187.218.239 (166.187.218.239): 7 hops max, 52 byte packets
5 *
6 *
7 *
Measurement taken from IPinfo ProbeNet in Brussels, BE
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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