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
208.182.124.2 AS19957 AT&T Enterprises, LLC 11.18ms from Atlanta, US
198.146.161.14 AS19957 AT&T Enterprises, LLC 7.49ms 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
206.23.145.1 AS19957 AT&T Enterprises, LLC 8.94ms from Atlanta, US
198.146.104.40 AS19957 AT&T Enterprises, LLC 9.47ms from Atlanta, US
206.23.59.1 AS19957 AT&T Enterprises, LLC 8.82ms from Atlanta, US
208.63.129.26 AS19957 AT&T Enterprises, LLC 5.20ms from Atlanta, US
66.4.60.2 AS19957 AT&T Enterprises, LLC 18.97ms from Atlanta, US
198.146.87.17 AS19957 AT&T Enterprises, LLC 6.90ms from Atlanta, US
72.158.184.12 AS19957 AT&T Enterprises, LLC 6.09ms from Atlanta, US
198.146.106.102 AS19957 AT&T Enterprises, LLC 10.76ms from Atlanta, US
198.146.8.26 AS19957 AT&T Enterprises, LLC 17.53ms from Atlanta, US
198.146.81.254 AS19957 AT&T Enterprises, LLC 8.32ms from Atlanta, US
198.146.105.1 AS19957 AT&T Enterprises, LLC 10.60ms from Atlanta, US
198.146.21.216 AS19957 AT&T Enterprises, LLC 11.62ms from Atlanta, US
198.146.73.27 AS19957 AT&T Enterprises, LLC 7.16ms from Atlanta, US
198.146.82.15 AS19957 AT&T Enterprises, LLC 10.97ms from Atlanta, US
198.146.209.113 AS19957 AT&T Enterprises, LLC 19.65ms from Atlanta, US
66.4.8.5 AS19957 AT&T Enterprises, LLC 11.08ms from Atlanta, US
66.4.32.1 AS19957 AT&T Enterprises, LLC 35.73ms from Atlanta, US
66.4.78.1 AS19957 AT&T Enterprises, LLC 12.17ms from Atlanta, US
206.23.254.9 AS19957 AT&T Enterprises, LLC 8.27ms from Atlanta, US
208.182.101.109 AS19957 AT&T Enterprises, LLC 11.31ms from Atlanta, US
208.63.128.26 AS19957 AT&T Enterprises, LLC 5.59ms 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
66.208.47.181 AS22925 Allied Telecom Group, LLC 0.74ms from Ashburn, US
221.223.119.229 AS4808 China Unicom Beijing Province Network 2.29ms from Beijing, CN
103.4.17.213 AS55359 Fluccs Australia Australian Cloud Provider 0.35ms from Brisbane, AU
197.167.171.117 AS24863 Link Egypt (Link.NET) 7.89ms from Cairo, EG
65.140.179.53 AS209 CenturyLink Communications, LLC 0.65ms from Denver, US
186.3.160.213 AS27947 Telconet S.A 2.15ms from Guayaquil, EC
122.236.90.69 AS4134 CHINANET-BACKBONE 6.52ms from Hangzhou, CN
47.56.237.117 AS45102 Alibaba (US) Technology Co., Ltd. 1.54ms from Hong Kong, HK
202.184.131.165 AS9930 TTNET-MY 0.75ms from Kuala Lumpur, MY
104.232.137.69 AS22552 eSited Solutions 0.34ms from Los Angeles, US
23.224.249.181 AS40065 CNSERVERS LLC 0.22ms from Los Angeles, US
178.163.207.149 AS42772 Unitary enterprise A1 0.49ms from Minsk, BY
85.71.248.53 AS5610 O2 Czech Republic, a.s. 0.90ms from Prague, CZ
186.222.229.165 AS28573 Claro NXT Telecomunicacoes Ltda 7.37ms from Sao Paulo, BR
206.211.216.69 AS16796 MERLIN 8.78ms from Saskatoon, CA
210.90.181.21 AS4766 Korea Telecom 3.82ms from Seoul, KR
221.165.6.245 AS4766 Korea Telecom 1.77ms from Seoul, KR
110.3.37.117 AS10013 FreeBit Co.,Ltd. 7.43ms from Tokyo, JP
103.236.78.245 AS134768 CHINANET SHAANXI province Cloud Base network 2.34ms from Xi'an, CN
5.231.254.37 AS206264 Amarutu Technology Ltd 0.55ms from Amsterdam, NL
70.182.184.181 AS22773 Cox Communications Inc. 0.69ms from Ashburn, US
223.144.170.85 AS4134 CHINANET-BACKBONE 3.61ms from Changsha, CN
170.85.49.133 AS8987 Amazon Data Services Ireland Ltd 0.74ms from Columbus, US
177.92.13.85 AS14868 Ligga Telecomunicações S.A. 0.23ms from Curitiba, BR
111.85.111.5 AS4837 CHINA UNICOM China169 Backbone 3.13ms from Guiyang, 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 66.4.195.22
traceroute to 66.4.195.22 (66.4.195.22): 6 hops max, 52 byte packets
2 [AS58061] 38.180.36.1 0.225 ms
4 *
5 *
6 *
Measurement taken from IPinfo ProbeNet in Almaty, KZ
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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