1. All IP Ranges
  2. 166.0.0.0/8
  3. 166.131.0.0/16
  4. AS20057  | 166.131.0.0/16

166.131.0.0/16

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:      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


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
166.56.0.0/16 AS3372 Verizon Business 65,536
166.99.0.0/16 AS11719 Eaton Corporation 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
166.92.0.0/16 AS16509 Amazon.com, Inc. 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
166.69.0.0/16 AS19773 Motorola MNIC 65,536
166.94.0.0/16 AS3926 Fairfax County Government 65,536
166.238.0.0/16 AS26611 COMUNICACIÓN CELULAR S.A. COMCEL S.A. 65,536
166.19.0.0/16 AS33425 CoreWeave, Inc 65,536
166.104.0.0/16 AS9321 Hanyang University 65,536
166.74.0.0/16 AS16509 Amazon.com, Inc. 65,536
166.58.0.0/16 AS3371 Verizon Business 65,536
166.84.0.0/16 AS2033 Panix 65,536
166.211.0.0/16 AS22394 Verizon Business 65,536
166.91.0.0/16 AS14072 District of Columbia Public Schools 65,536
166.20.0.0/16 AS243 L3Harris Technologies, Inc. 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
166.90.0.0/16 AS3257 Level 3 Parent, LLC 65,536
166.100.0.0/16 AS2687 AT&T Japan K.K. 65,536
166.111.0.0/16 AS4538 Tsinghua University 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
166.90.0.0/16 AS3356 Level 3 Parent, LLC 65,536
166.70.0.0/16 AS6315 XMission, L.C. 65,536
166.72.0.0/16 AS7018 AT&T Enterprises, LLC 65,536
166.87.0.0/16 AS5080 Saudi Arabian Oil Company 65,536
166.122.0.0/16 AS6360 University of Hawaii 65,536
166.82.0.0/16 AS7029 Windstream Communications LLC 65,536
166.102.0.0/16 AS7029 Windstream Communications LLC 65,536
166.62.128.0/17 AS5769 Videotron Ltee 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
166.49.128.0/17 AS5400 communications networking services Private Unlimited Company 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
166.108.128.0/18 AS35077 Netwo SAS 16,384
166.113.64.0/18 AS53449 OEC Fiber 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
166.113.0.0/19 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 3 domain names hosted across 2 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address Domain Domains on this IP

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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Pingable IPs

3,670 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address ASN Details
166.131.33.197 AS20057 AT&T Enterprises, LLC 38.59ms from Atlanta, US
166.131.141.150 AS20057 AT&T Enterprises, LLC 30.80ms from Atlanta, US
166.131.190.214 AS20057 AT&T Enterprises, LLC 17.89ms from Atlanta, US
166.131.87.11 AS20057 AT&T Enterprises, LLC 25.21ms from Dallas, US
166.131.81.18 AS20057 AT&T Enterprises, LLC 37.95ms from Dallas, US
166.131.71.67 AS20057 AT&T Enterprises, LLC 38.49ms from Dallas, US
166.131.179.10 AS20057 AT&T Enterprises, LLC 33.40ms from Los Angeles, US
166.131.217.112 AS20057 AT&T Enterprises, LLC 30.05ms from Chicago, US
166.131.187.70 AS20057 AT&T Enterprises, LLC 24.54ms from Houston, US
166.131.229.47 AS20057 AT&T Enterprises, LLC 25.36ms from Kansas City, US
166.131.116.35 AS20057 AT&T Enterprises, LLC 6.04ms from Dallas, US
166.131.84.126 AS20057 AT&T Enterprises, LLC 36.75ms from Dallas, US
166.131.85.13 AS20057 AT&T Enterprises, LLC 36.59ms from Dallas, US
166.131.16.53 AS20057 AT&T Enterprises, LLC 4.46ms from Fremont, US
166.131.210.5 AS20057 AT&T Enterprises, LLC 46.99ms from Santa Clara, US
166.131.231.32 AS20057 AT&T Enterprises, LLC 26.99ms from Ashburn, US
166.131.192.126 AS20057 AT&T Enterprises, LLC 16.48ms from Dallas, US
166.131.24.55 AS20057 AT&T Enterprises, LLC 37.30ms from San Jose, US
166.131.165.44 AS20057 AT&T Enterprises, LLC 2.08ms from Ashburn, US
166.131.184.197 AS20057 AT&T Enterprises, LLC 21.90ms from Dallas, US
166.131.133.165 AS20057 AT&T Enterprises, LLC 14.55ms from Miami, US
166.131.130.136 AS20057 AT&T Enterprises, LLC 13.74ms from Ashburn, US
166.131.98.1 AS20057 AT&T Enterprises, LLC 53.52ms from Dallas, US
166.131.43.193 AS20057 AT&T Enterprises, LLC 17.06ms from Grand Rapids, US
166.131.178.250 AS20057 AT&T Enterprises, LLC 17.39ms from Santa Clara, 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
2.86.127.48 AS6799 Ote SA (Hellenic Telecommunications Organisation) 7.65ms from Athens, GR
191.236.149.192 AS8075 Microsoft Corporation 0.79ms from Chicago, US
201.253.164.80 AS7303 Telecom Argentina S.A. 2.45ms from Cordoba, AR
34.71.96.112 AS396982 Google LLC 0.11ms from Council Bluffs, US
71.237.34.16 AS7922 Comcast Cable Communications, LLC 2.18ms from Denver, US
77.177.185.224 AS6805 Telefonica Germany GmbH & Co.OHG 3.02ms from Duesseldorf, DE
109.172.95.32 AS210644 AEZA INTERNATIONAL LTD 0.47ms from Frankfurt am Main, DE
87.22.209.0 AS3269 Telecom Italia S.p.A. 7.14ms from Frosinone, IT
212.154.81.16 AS12735 TurkNet Iletisim Hizmetleri A.S. 0.97ms from Istanbul, TR
136.228.232.112 AS202276 IBOSS, INC 0.18ms from London, GB
82.4.153.64 AS5089 Virgin Media Limited 10.91ms from London, GB
151.49.47.176 AS1267 WIND TRE S.P.A. 6.87ms from Milan, IT
66.216.238.128 AS20115 Charter Communications LLC 9.26ms from Minneapolis, US
178.141.187.192 AS8359 MTS PJSC 16.34ms from Moscow, RU
100.29.3.176 AS14618 Amazon.com, Inc. 0.25ms from Reston, US
146.247.86.144 AS29518 Bredband2 AB 3.47ms from Stockholm, SE
31.168.153.176 AS8551 Bezeq International Ltd. 15.32ms from Tel Aviv, IL
14.9.86.224 AS2516 KDDI CORPORATION 15.58ms from Tokyo, JP
24.57.173.64 AS7992 Cogeco Connexion Inc. 5.53ms from Toronto, CA
75.134.0.64 AS20115 Charter Communications LLC 12.97ms from Ashburn, US
38.137.158.0 AS1819 DCM Cable Inc. 9.80ms from Atlanta, US
122.176.189.16 AS24560 Bharti Airtel Ltd., Telemedia Services 15.27ms from Kolkata, IN
189.225.14.80 AS8151 UNINET 5.64ms from Mexico City, MX
151.67.244.96 AS1267 WIND TRE S.P.A. 6.70ms from Milan, IT
151.145.42.0 AS31898 Oracle Corporation 0.15ms from Montreal, CA

Traceroute

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

$
traceroute -a -n -q1 166.131.33.197
traceroute to 166.131.33.197 (166.131.33.197): 64 hops max, 52 byte packets
1 [AS63023] 38.121.43.1 0.407 ms
2 [AS3257] 66.171.224.25 0.278 ms
3 [AS3257] 89.149.141.94 2.411 ms
5 [AS7018] 32.130.89.14 1.512 ms
6 *
7 *
8 *
10 *
11 *
12 *
Measurement taken from IPinfo ProbeNet in Atlanta, 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.

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