Autonomous System details

AS19957

AT&T Enterprises, LLC  ·  att.com

United States

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AS19957 – AT&T Enterprises, LLC

Field Value
Country United States
Website att.com
Hosted domains 32
IPv4 addresses 399,360
IPv6 addresses 0
ASN type ISP
Registry arin
Allocated 23 years ago on Mar 05, 2003
Updated a year ago on Feb 12, 2025

IP Ranges

Netblock Company Num of IPs
66.4.0.0/16 State of Tennessee Department of Education 65,536
170.142.0.0/16 State of Tennessee 65,536
170.143.0.0/16 State of Tennessee 65,536
198.146.0.0/16 Tennessee Board of Regents 65,536
206.23.0.0/16 Tennessee Board of Regents 65,536
208.182.0.0/16 State of Tennessee Department of Education 65,536
208.63.128.0/20 STATE OF TENNESSEE-NETTN 4,096
66.4.28.0/22 State of Tennessee Department of Education 1,024
66.4.8.0/23 State of Tennessee Department of Education 512
66.4.14.0/23 State of Tennessee Department of Education 512
66.4.16.0/23 State of Tennessee Department of Education 512
66.4.18.0/23 State of Tennessee Department of Education 512
66.4.32.0/23 State of Tennessee Department of Education 512
66.4.60.0/23 State of Tennessee Department of Education 512
170.141.56.0/23 State of Tennessee 512
170.141.60.0/23 State of Tennessee 512
66.4.9.0/24 State of Tennessee Department of Education 256
66.4.18.0/24 State of Tennessee Department of Education 256
66.4.19.0/24 State of Tennessee Department of Education 256
66.4.27.0/24 State of Tennessee Department of Education 256
66.4.38.0/24 State of Tennessee Department of Education 256
66.4.40.0/24 State of Tennessee Department of Education 256
66.4.78.0/24 State of Tennessee Department of Education 256
66.4.81.0/24 State of Tennessee Department of Education 256
66.4.124.0/24 State of Tennessee Department of Education 256
66.4.126.0/24 State of Tennessee Department of Education 256
70.150.21.0/24 STATE OF TENNESSEE-NETTN 256
70.150.247.0/24 STATE OF TENNESSEE-NETTN 256
72.158.184.0/24 STATE OF TENNESSEE-NETTN 256
72.159.76.0/24 STATE OF TENNESSEE-NETTN 256
208.63.128.0/24 STATE OF TENNESSEE-NETTN 256
208.63.129.0/24 STATE OF TENNESSEE-NETTN 256
208.182.101.0/24 State of Tennessee Department of Education 256
208.182.124.0/24 State of Tennessee Department of Education 256

There are no known IPv6 addresses belonging to this network

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WHOIS Details

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                                                ASHandle:       AS19957
                                                OrgID:          AS19957
                                                ASName:         AS19957
                                                ASNumber:       AS19957
                                                RegDate:        0000-00-00
                                                Updated:        0000-00-00
                                                TechHandle:     AA00-AAAA
                                                Source:         AAAA
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Hosted Domains

There are 32 domain names hosted across 18 IP addresses on this ASN.

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IP Address Domain Domains on this IP
198.146.12.65 ██████████ 7
206.23.142.18 ██████████ 4
198.146.209.20 ██████████ 2
198.146.192.10 █████████ 2
198.146.195.20 ██████████ 2
66.4.18.197 ██████████ 1
66.4.189.2 ██████████ 1
198.146.208.20 ██████████ 1
198.146.195.10 ██████████ 1
198.146.104.18 ██████████ 1

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Peers

There are 3 peers for this ASN.

Peers Name
AS16473 AT&T Enterprises, LLC
AS16989 The University of Tennessee Health Science Center
AS7018 AT&T Enterprises, LLC
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Upstreams

There is 1 peer for this ASN.

upstreams Name
AS7018 AT&T Enterprises, LLC
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Downstreams

There is 1 peer for this ASN.

Downstreams Name
AS16989 The University of Tennessee Health Science Center
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ASN API & Database

Pingable IPs

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

IP Address ASN Details
66.4.60.1 AS19957 AT&T Enterprises, LLC 20.28ms from Atlanta, US
66.4.8.5 AS19957 AT&T Enterprises, LLC 7.26ms from Atlanta, US
208.182.124.15 AS19957 AT&T Enterprises, LLC 11.42ms from Atlanta, US
198.146.208.8 AS19957 AT&T Enterprises, LLC 16.26ms from Atlanta, US
198.146.105.2 AS19957 AT&T Enterprises, LLC 10.75ms from Atlanta, US
198.146.81.254 AS19957 AT&T Enterprises, LLC 7.50ms from Atlanta, US
198.146.21.212 AS19957 AT&T Enterprises, LLC 11.82ms from Atlanta, US
206.23.6.230 AS19957 AT&T Enterprises, LLC 16.05ms from Atlanta, US
198.146.198.65 AS19957 AT&T Enterprises, LLC 11.85ms from Atlanta, US
198.146.82.15 AS19957 AT&T Enterprises, LLC 9.99ms from Atlanta, US
206.23.254.9 AS19957 AT&T Enterprises, LLC 8.21ms from Atlanta, US
208.63.128.26 AS19957 AT&T Enterprises, LLC 6.06ms from Atlanta, US
66.4.78.2 AS19957 AT&T Enterprises, LLC 8.06ms from Atlanta, US
198.146.104.62 AS19957 AT&T Enterprises, LLC 9.87ms from Atlanta, US
66.4.9.19 AS19957 AT&T Enterprises, LLC 7.19ms from Atlanta, US
66.4.124.15 AS19957 AT&T Enterprises, LLC 6.68ms from Atlanta, US
198.146.163.1 AS19957 AT&T Enterprises, LLC 7.86ms from Atlanta, US
198.146.73.208 AS19957 AT&T Enterprises, LLC 7.63ms from Atlanta, US
206.23.59.1 AS19957 AT&T Enterprises, LLC 9.48ms from Atlanta, US
66.4.31.1 AS19957 AT&T Enterprises, LLC 7.41ms from Atlanta, US
198.146.209.50 AS19957 AT&T Enterprises, LLC 16.09ms from Atlanta, US
198.146.87.18 AS19957 AT&T Enterprises, LLC 7.10ms from Atlanta, US
198.146.195.20 AS19957 AT&T Enterprises, LLC 12.18ms from Atlanta, US
198.146.148.84 AS19957 AT&T Enterprises, LLC 8.63ms from Atlanta, US
198.146.127.41 AS19957 AT&T Enterprises, LLC 10.20ms 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
68.81.120.133 AS7922 Comcast Cable Communications, LLC 8.20ms from Ashburn, US
187.207.213.85 AS8151 UNINET 16.12ms from Cancún, MX
107.129.53.133 AS7018 AT&T Enterprises, LLC 12.18ms from Dallas, US
187.218.92.165 AS8151 UNINET 15.18ms from Dallas, US
87.40.120.5 AS1213 ASIERA TECHNOLOGY SERVICES CLG 19.43ms from Dublin, IE
54.155.47.181 AS16509 Amazon.com, Inc. 0.20ms from Dublin, IE
5.196.190.181 AS16276 OVH SAS 0.05ms from Gravelines, FR
126.209.92.165 AS135607 Infinivan Incorporated 0.35ms from Manila, PH
120.29.248.5 AS38796 BOMBORA TECHNOLOGIES PTY LTD 0.41ms from Melbourne, AU
194.0.0.53 AS31529 DENIC eG 0.17ms from Miami, US
132.203.14.53 AS36786 Universite Laval 5.03ms from Montreal, CA
115.113.174.5 AS4755 TATA Communications formerly VSNL is Leading ISP 2.90ms from Mumbai, IN
212.164.8.213 AS12389 PJSC Rostelecom 0.84ms from Novosibirsk, RU
211.132.104.5 AS7679 QTnet,Inc. 7.21ms from Osaka, JP
213.39.66.149 AS3257 GTT Communications Inc. 0.35ms from Paris, FR
96.71.172.133 AS7922 Comcast Cable Communications, LLC 7.36ms from Portland, US
193.165.171.53 AS30764 PODA a.s. 0.63ms from Prague, CZ
104.215.75.53 AS8075 Microsoft Corporation 0.22ms from San Antonio, US
187.148.4.213 AS8151 UNINET 8.33ms from Santiago de Queretaro, MX
115.139.119.149 AS17858 LG POWERCOMM 1.83ms from Seoul, KR
183.236.167.181 AS9808 China Mobile Communications Group Co., Ltd. 7.57ms from Shenzhen, CN
103.37.85.117 AS12975 PALTEL Autonomous System 5.21ms from Tel Aviv, IL
119.108.208.117 AS4837 CHINA UNICOM China169 Backbone 7.93ms from Tieling, CN
146.160.80.181 AS9605 NTT DOCOMO, INC. 19.78ms from Tokyo, JP
195.136.156.5 AS205608 SERVIRE Adam Kozlowski 6.68ms from Warsaw, PL

Traceroute

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

$
traceroute -a -n -q1 -m5 66.4.123.86
traceroute to 66.4.123.86 (66.4.123.86): 5 hops max, 52 byte packets
3 *
4 *
5 *
Measurement taken from IPinfo ProbeNet in Abu Dhabi, AE
On

Related Networks

What is an ASN?

Autonomous System Numbers (ASNs) are assigned to entities such as Internet Service Providers and other large organizations that control blocks of IP addresses. This network page, and the organization field that's shown on the main IP address information page and also returned in the geolocation API are based on the ASN.

The ASN details will often correspond to the IP address owner, but for smaller organizations it may be that organization's parent, or their ISP. Find out more about AS19957 at robtex.

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