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 34
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 34 domain names hosted across 20 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 ██████████ 3
198.146.195.20 ██████████ 3
198.146.192.10 █████████ 2
198.146.104.18 ██████████ 2
66.4.18.197 ██████████ 1
170.142.7.20 ██████████ 1
66.4.27.10 ██████████ 1
198.146.23.144 ██████████ 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

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

IP Address ASN Details
72.158.184.12 AS19957 AT&T Enterprises, LLC 6.09ms from Atlanta, US
198.146.82.15 AS19957 AT&T Enterprises, LLC 10.97ms from Atlanta, US
198.146.106.102 AS19957 AT&T Enterprises, LLC 10.76ms from Atlanta, US
198.146.120.249 AS19957 AT&T Enterprises, LLC 9.45ms from Atlanta, US
208.63.129.26 AS19957 AT&T Enterprises, LLC 5.20ms from Atlanta, US
198.146.161.14 AS19957 AT&T Enterprises, LLC 7.49ms from Atlanta, US
198.146.209.113 AS19957 AT&T Enterprises, LLC 19.65ms from Atlanta, US
208.182.101.109 AS19957 AT&T Enterprises, LLC 11.31ms from Atlanta, US
198.146.81.254 AS19957 AT&T Enterprises, LLC 8.32ms from Atlanta, US
198.146.163.18 AS19957 AT&T Enterprises, LLC 7.41ms from Atlanta, US
198.146.148.85 AS19957 AT&T Enterprises, LLC 8.92ms from Atlanta, US
66.4.18.134 AS19957 AT&T Enterprises, LLC 12.28ms from Atlanta, US
72.159.76.12 AS19957 AT&T Enterprises, LLC 10.68ms from Atlanta, US
198.146.105.1 AS19957 AT&T Enterprises, LLC 10.60ms from Atlanta, US
66.4.60.2 AS19957 AT&T Enterprises, LLC 18.97ms from Atlanta, US
198.146.69.99 AS19957 AT&T Enterprises, LLC 7.64ms from Atlanta, US
66.4.31.1 AS19957 AT&T Enterprises, LLC 11.34ms from Atlanta, US
208.63.128.26 AS19957 AT&T Enterprises, LLC 5.59ms from Atlanta, US
198.146.64.255 AS19957 AT&T Enterprises, LLC 7.63ms from Atlanta, US
206.23.145.1 AS19957 AT&T Enterprises, LLC 8.94ms from Atlanta, US
198.146.21.216 AS19957 AT&T Enterprises, LLC 11.62ms from Atlanta, US
198.146.87.17 AS19957 AT&T Enterprises, LLC 6.90ms from Atlanta, US
66.4.124.15 AS19957 AT&T Enterprises, LLC 6.28ms from Atlanta, US
206.23.59.1 AS19957 AT&T Enterprises, LLC 8.82ms from Atlanta, US
66.4.8.5 AS19957 AT&T Enterprises, LLC 11.08ms 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
73.191.61.197 AS7922 Comcast Cable Communications, LLC 7.41ms from Ashburn, US
2.205.80.165 AS3209 Vodafone GmbH 4.21ms from Berlin, DE
89.36.72.5 AS50884 Level Network SRL 1.89ms from Bucharest, RO
103.190.253.101 AS136332 Adri Infocom Pvt Ltd 0.90ms from Delhi, IN
96.51.97.53 AS6327 Shaw Communications 5.87ms from Edmonton, CA
68.101.234.229 AS22773 Cox Communications Inc. 8.98ms from Los Angeles, US
34.23.106.149 AS396982 Google LLC 0.14ms from Moncks Corner, US
5.139.95.53 AS12389 PJSC Rostelecom 17.59ms from Moscow, RU
184.179.161.53 AS22773 Cox Communications Inc. 7.44ms from Phoenix, US
170.246.5.101 AS52751 Brasrede Telecomunicações LTDA 3.62ms from Porto Alegre, BR
121.154.212.5 AS4766 Korea Telecom 4.79ms from Seoul, KR
14.103.190.85 AS4811 China Telecom (Group) 2.97ms from Shanghai, CN
124.77.191.5 AS4812 China Telecom (Group) 3.62ms from Shanghai, CN
182.112.103.245 AS4837 CHINA UNICOM China169 Backbone 4.96ms from Zhengzhou, CN
24.182.75.21 AS20115 Charter Communications LLC 10.63ms from Atlanta, US
186.98.59.149 AS3816 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC 8.25ms from Bogota, CO
174.68.30.245 AS22773 Cox Communications Inc. 16.41ms from Dallas, US
45.38.58.21 AS400402 Hosting Bot, LLC 1.11ms from Dallas, US
172.202.2.21 AS8075 Microsoft Corporation 0.16ms from Des Moines, US
117.214.121.5 AS9829 National Internet Backbone 8.97ms from Kolkata, IN
126.209.92.165 AS135607 Infinivan Incorporated 0.25ms from Manila, PH
142.163.206.181 AS855 Bell Canada 14.51ms from Montreal, CA
57.157.37.21 AS8075 Microsoft Corporation 0.54ms from Paris, FR
187.241.64.5 AS13999 Mega Cable, S.A. de C.V. 12.99ms from Santiago de Querétaro, MX
106.54.102.5 AS45090 Shenzhen Tencent Computer Systems Company Limited 1.32ms from Shanghai, CN

Traceroute

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

$
traceroute -a -n -q1 -f2 -m6 198.146.158.132
traceroute to 198.146.158.132 (198.146.158.132): 6 hops max, 52 byte packets
2 [] 156.146.32.232 0.147 ms
4 *
5 *
6 *
Measurement taken from IPinfo ProbeNet in Chicago, US
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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