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:        [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
166.74.0.0/16 AS16509 Amazon.com, Inc. 65,536
166.87.0.0/16 AS5080 Saudi Arabian Oil Company 65,536
166.84.0.0/16 AS2033 Panix 65,536
166.90.0.0/16 AS3356 Level 3 Parent, LLC 65,536
166.91.0.0/16 AS14072 District of Columbia Public Schools 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
166.20.0.0/16 AS243 L3Harris Technologies, Inc. 65,536
166.211.0.0/16 AS6167 Verizon Business 65,536
166.56.0.0/16 AS3372 Verizon Business 65,536
166.117.0.0/16 AS16509 Amazon.com, Inc. 65,536
166.80.0.0/16 AS16509 Amazon.com, Inc. 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
166.104.0.0/16 AS9321 Hanyang University 65,536
166.211.0.0/16 AS22394 Verizon Business 65,536
166.238.0.0/16 AS26611 COMUNICACIÓN CELULAR S.A. COMCEL S.A. 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
166.92.0.0/16 AS16509 Amazon.com, Inc. 65,536
166.99.0.0/16 AS11719 Eaton Corporation 65,536
166.94.0.0/16 AS3926 Fairfax County Government 65,536
166.89.0.0/16 AS13918 City of Tucson 65,536
166.123.0.0/16 AS13506 United States Department of the Treasury 65,536
166.91.0.0/16 AS33084 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
166.70.0.0/16 AS6315 XMission, L.C. 65,536
166.102.0.0/16 AS7029 Windstream Communications LLC 65,536
166.122.0.0/16 AS6360 University of Hawaii 65,536
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
166.49.0.0/17 AS3561 CenturyLink Communications, LLC 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
166.114.32.0/19 AS6568 EMPRESA NACIONAL DE TELECOMUNICACIONES SOCIEDAD ANONIMA 8,192
166.63.160.0/19 AS1273 Vodafone Americas 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
166.93.0.0/20 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

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

IP Address ASN Details
166.200.113.4 AS20057 AT&T Enterprises, LLC 31.48ms from Dallas, US
166.200.117.2 AS20057 AT&T Enterprises, LLC 32.90ms from Houston, US
166.200.161.202 AS20057 AT&T Enterprises, LLC 63.42ms from San Jose, US
166.200.36.42 AS20057 AT&T Enterprises, LLC 20.99ms from Dallas, US
166.200.186.27 AS20057 AT&T Enterprises, LLC 27.20ms from Dallas, US
166.200.0.214 AS20057 AT&T Enterprises, LLC 49.12ms from Houston, US
166.200.160.161 AS20057 AT&T Enterprises, LLC 2.94ms from Santa Clara, US
166.200.4.133 AS20057 AT&T Enterprises, LLC 26.20ms from Dallas, US
166.200.116.175 AS20057 AT&T Enterprises, LLC 2.04ms 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
40.131.239.32 AS7029 Windstream Communications LLC 7.90ms from Dallas, US
123.253.144.32 AS38203 ADN Telecom Ltd. 0.52ms from Dhaka, BD
45.167.140.0 AS268011 S.BARROS DE SOUZA-ME 12.97ms from Fortaleza, BR
51.116.175.80 AS8075 Microsoft Corporation 0.31ms from Frankfurt am Main, DE
47.242.63.80 AS45102 Alibaba (US) Technology Co., Ltd. 0.76ms from Hong Kong, HK
14.6.159.128 AS17858 LG POWERCOMM 2.19ms from Incheon, KR
51.142.238.16 AS8075 Microsoft Corporation 0.25ms from London, GB
172.69.46.160 AS13335 Cloudflare, Inc. 11.31ms from Nairobi, KE
68.192.83.224 AS6128 Cablevision Systems Corp. 2.05ms from New York City, US
177.78.62.160 AS26599 TELEFÔNICA BRASIL S.A 3.57ms from Osasco, BR
88.93.59.112 AS2119 Telenor Norge AS 11.84ms from Oslo, NO
51.175.110.96 AS29695 Lyse Tele AS 0.76ms from Oslo, NO
112.177.222.176 AS4766 Korea Telecom 1.64ms from Seoul, KR
220.240.34.208 AS7545 TPG Telecom Limited 1.04ms from Sydney, AU
126.126.110.160 AS17676 SoftBank Corp. 2.81ms from Tokyo, JP
188.246.143.0 AS29553 Toya sp.z.o.o 2.15ms from Warsaw, PL
98.71.253.80 AS8075 Microsoft Corporation 1.79ms from Amsterdam, NL
73.173.80.96 AS7922 Comcast Cable Communications, LLC 7.46ms from Ashburn, US
166.19.47.0 AS33425 CoreWeave, Inc 0.94ms from Atlanta, US
185.253.154.80 AS49635 CLOUDI NEXTGEN SL 0.73ms from Barcelona, ES
134.102.13.128 AS680 Verein zur Foerderung eines Deutschen Forschungsnetzes e.V. 12.70ms from Berlin, DE
52.13.187.0 AS16509 Amazon.com, Inc. 0.14ms from Boardman, US
23.14.45.80 AS16625 Akamai Technologies, Inc. 0.30ms from Bogotá, CO
178.154.226.224 AS200350 Yandex.Cloud LLC 2.49ms from Moscow, RU
173.63.226.80 AS701 Verizon Business 2.02ms from New York City, US

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 166.200.115.23
traceroute to 166.200.115.23 (166.200.115.23): 7 hops max, 52 byte packets
3 [] 84.17.33.92 0.301 ms
5 *
6 *
7 *
Measurement taken from IPinfo ProbeNet in Chicago, 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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