1. All IP Ranges
  2. 166.0.0.0/8
  3. 166.136.0.0/16
  4. AS20057  | 166.136.0.0/16

166.136.0.0/16

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-166-128-0-0-1
OrgID:          AEL-360
Parent:         NET-166-0-0-0-0
NetName:        AEL-360
NetRange:       166.128.0.0 - 166.138.255.255
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:        [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:      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

Nearby Ranges

BGP prefixes that overlap with 166.0.0.0/8

Range ASN Company Num of IPs
166.72.0.0/16 AS7018 AT&T Enterprises, LLC 65,536
166.102.0.0/16 AS7029 Windstream Communications LLC 65,536
166.92.0.0/16 AS16509 Amazon.com, Inc. 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
166.117.0.0/16 AS16509 Amazon.com, Inc. 65,536
166.82.0.0/16 AS7029 Windstream Communications LLC 65,536
166.84.0.0/16 AS2033 Panix 65,536
166.104.0.0/16 AS9321 Hanyang University 65,536
166.56.0.0/16 AS3372 Verizon Business 65,536
166.80.0.0/16 AS16509 Amazon.com, Inc. 65,536
166.74.0.0/16 AS16509 Amazon.com, Inc. 65,536
166.56.0.0/16 AS3371 Verizon Business 65,536
166.90.0.0/16 AS3356 Level 3 Parent, LLC 65,536
166.238.0.0/16 AS26611 COMUNICACIÓN CELULAR S.A. COMCEL S.A. 65,536
166.90.0.0/16 AS3257 Level 3 Parent, LLC 65,536
166.70.0.0/16 AS6315 XMission, L.C. 65,536
166.20.0.0/16 AS243 L3Harris Technologies, Inc. 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
166.91.0.0/16 AS33084 District of Columbia Public Schools 65,536
166.69.0.0/16 AS19773 Motorola MNIC 65,536
166.99.0.0/16 AS11719 Eaton Corporation 65,536
166.211.0.0/16 AS22394 Verizon Business 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
166.111.0.0/16 AS4538 Tsinghua University 65,536
166.211.0.0/16 AS6167 Verizon Business 65,536
166.122.0.0/16 AS6360 University of Hawaii 65,536
166.94.0.0/16 AS3926 Fairfax County Government 65,536
166.58.0.0/16 AS3377 Verizon Business 65,536
166.87.0.0/16 AS5080 Saudi Arabian Oil Company 65,536
166.49.128.0/17 AS5400 communications networking services Private Unlimited Company 32,768
166.48.0.0/17 AS396338 Altima Telecom 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
166.49.0.0/17 AS3561 CenturyLink Communications, LLC 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
166.63.160.0/19 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

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Useful for Cybersecurity
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Pingable IPs

1,315 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address ASN Details
166.136.164.92 AS20057 AT&T Enterprises, LLC 25.00ms from Houston, US
166.136.165.219 AS20057 AT&T Enterprises, LLC 19.44ms from Houston, US
166.136.161.104 AS20057 AT&T Enterprises, LLC 18.16ms from Ashburn, US
166.136.171.25 AS20057 AT&T Enterprises, LLC 21.47ms from Houston, US
166.136.174.116 AS20057 AT&T Enterprises, LLC 23.03ms from Atlanta, US
166.136.166.124 AS20057 AT&T Enterprises, LLC 23.45ms from Houston, US
166.136.148.18 AS20057 AT&T Enterprises, LLC 12.07ms from Houston, US
166.136.179.186 AS20057 AT&T Enterprises, LLC 21.08ms from Dallas, US
166.136.175.102 AS20057 AT&T Enterprises, LLC 22.12ms from Atlanta, US
166.136.160.73 AS20057 AT&T Enterprises, LLC 27.28ms from Redding, US
166.136.167.186 AS20057 AT&T Enterprises, LLC 16.48ms from Houston, US
166.136.163.133 AS20057 AT&T Enterprises, LLC 32.78ms from Atlanta, US
166.136.170.221 AS20057 AT&T Enterprises, LLC 19.41ms from Houston, US
166.136.172.72 AS20057 AT&T Enterprises, LLC 20.13ms from Atlanta, US
166.136.168.224 AS20057 AT&T Enterprises, LLC 23.63ms from Ashburn, US
166.136.173.148 AS20057 AT&T Enterprises, LLC 6.12ms from Dallas, US
166.136.169.129 AS20057 AT&T Enterprises, LLC 64.17ms from San Jose, US
166.136.149.169 AS20057 AT&T Enterprises, LLC 2.74ms from Atlanta, 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
24.131.243.160 AS7922 Comcast Cable Communications, LLC 11.97ms from Ashburn, US
16.147.201.64 AS16509 Amazon.com, Inc. 0.62ms from Boardman, US
216.146.210.96 AS7859 pair Networks 0.35ms from Denver, US
171.243.45.64 AS7552 Viettel Group 11.08ms from Ho Chi Minh City, VN
203.86.233.176 AS133380 Layerstack Limited 1.06ms from Hong Kong, HK
58.127.113.240 AS9318 SK Broadband Co Ltd 1.83ms from Incheon, KR
104.34.125.80 AS20001 Charter Communications Inc 5.03ms from Los Angeles, US
176.175.85.192 AS5410 Bouygues Telecom SA 2.19ms from Marseille, FR
82.145.102.224 AS30848 UNIDATA S.p.A. 1.18ms from Milan, IT
96.3.161.208 AS11232 Midcontinent Communications 13.57ms from Minneapolis, US
37.45.252.144 AS6697 Republican Unitary Telecommunication Enterprise Beltelecom 1.88ms from Minsk, BY
35.171.123.64 AS14618 Amazon.com, Inc. 0.21ms from Reston, US
112.155.212.224 AS17858 LG POWERCOMM 2.16ms from Seoul, KR
126.2.119.16 AS17676 SoftBank Corp. 4.27ms from Tokyo, JP
43.192.146.192 AS135629 Ningxia West Cloud Data Technology Co.Ltd. 1.80ms from Zhongwei, CN
185.61.227.0 AS29311 Solvinity B.V. 1.14ms from Amsterdam, NL
98.16.136.208 AS7029 Windstream Communications LLC 7.10ms from Atlanta, US
185.104.156.128 AS200485 Nass Al Iraq for trading, general contracting, technical solutions, internet services and communications services Limited Liability Company 0.47ms from Baghdad, IQ
45.15.89.224 AS208929 NT Neue Technologie AG 6.71ms from Berlin, DE
35.88.121.64 AS16509 Amazon.com, Inc. 0.15ms from Boardman, US
147.45.198.208 AS212701 Hostinux Limited 0.12ms from Frankfurt am Main, DE
171.237.253.32 AS7552 Viettel Group 3.88ms from Hanoi, VN
39.39.13.112 AS17557 Pakistan Telecommunication Company Limited 5.15ms from Karachi, PK
168.150.70.160 AS6192 University of California, Davis 4.76ms from San Jose, US
36.36.6.160 AS17962 ShenZhen Topway Video Communication Co. Ltd 4.61ms from Shenzhen, CN

Traceroute

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

$
traceroute -a -n -q1 -f3 -m15 166.136.112.196
traceroute to 166.136.112.196 (166.136.112.196): 15 hops max, 52 byte packets
5 *
6 *
7 *
8 [AS7018] 32.130.89.14 201.161 ms
9 *
10 *
11 *
12 [AS20057] 166.147.87.109 203.781 ms
13 *
14 *
15 *
Measurement taken from IPinfo ProbeNet in Al Fujairah City, AE
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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