Autonomous System details

AS19957

AT&T Enterprises, LLC  ·  att.com

United States

Need more data or want to access it via API or data downloads? Sign up to get free access

Sign up for free ›

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

Get this data and more with IPinfo's powerful IP Ranges API - quickly and easily identify company-owned IP ranges.
IP Ranges API

WHOIS Details

Join for free to view WHOIS details › 

                                                ASHandle:       AS19957
                                                OrgID:          AS19957
                                                ASName:         AS19957
                                                ASNumber:       AS19957
                                                RegDate:        0000-00-00
                                                Updated:        0000-00-00
                                                TechHandle:     AA00-AAAA
                                                Source:         AAAA
Get this data and more with IPinfo's WHOIS product - effortless access to POCs, ORGs, and Networks, for actionable intelligence.
IP WHOIS API & Database

Hosted Domains

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

Join for free to explore hosted domains ›
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

Discover all domains hosted on a single IP address with IPinfo's powerful Hosted Domains (Reverse IP) solution.
Useful for Cybersecurity
Hosted Domains API & Database

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
Get this data and more insights on related domains, allocation dates, registry names, IP counts with IPinfo's IP-to-ASN product.
ASN API & Database

Upstreams

There is 1 peer for this ASN.

upstreams Name
AS7018 AT&T Enterprises, LLC
Get this data and more insights on related domains, allocation dates, registry names, IP counts with IPinfo's IP-to-ASN product.
ASN API & Database

Downstreams

There is 1 peer for this ASN.

Downstreams Name
AS16989 The University of Tennessee Health Science Center
Get this data and more insights on related domains, allocation dates, registry names, IP counts with IPinfo's IP-to-ASN product.
ASN API & Database

Pingable IPs

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

IP Address ASN Details
198.146.104.39 AS19957 AT&T Enterprises, LLC 10.02ms from Atlanta, US
66.4.32.1 AS19957 AT&T Enterprises, LLC 36.03ms from Atlanta, US
198.146.74.36 AS19957 AT&T Enterprises, LLC 8.34ms from Atlanta, US
66.4.124.15 AS19957 AT&T Enterprises, LLC 6.68ms from Atlanta, US
198.146.69.99 AS19957 AT&T Enterprises, LLC 7.82ms from Atlanta, US
198.146.21.212 AS19957 AT&T Enterprises, LLC 11.82ms from Atlanta, US
198.146.107.113 AS19957 AT&T Enterprises, LLC 10.32ms from Atlanta, US
198.146.148.84 AS19957 AT&T Enterprises, LLC 8.63ms from Atlanta, US
208.63.128.26 AS19957 AT&T Enterprises, LLC 6.06ms from Atlanta, US
72.159.76.12 AS19957 AT&T Enterprises, LLC 11.22ms from Atlanta, US
66.4.78.2 AS19957 AT&T Enterprises, LLC 8.06ms from Atlanta, US
66.4.60.1 AS19957 AT&T Enterprises, LLC 20.28ms from Atlanta, US
198.146.120.249 AS19957 AT&T Enterprises, LLC 9.76ms from Atlanta, US
72.158.184.12 AS19957 AT&T Enterprises, LLC 6.26ms from Atlanta, US
208.182.101.109 AS19957 AT&T Enterprises, LLC 7.49ms from Atlanta, US
198.146.105.2 AS19957 AT&T Enterprises, LLC 10.75ms from Atlanta, US
198.146.163.1 AS19957 AT&T Enterprises, LLC 7.86ms from Atlanta, US
198.146.64.7 AS19957 AT&T Enterprises, LLC 9.01ms from Atlanta, US
198.146.161.14 AS19957 AT&T Enterprises, LLC 8.18ms from Atlanta, US
198.146.82.15 AS19957 AT&T Enterprises, LLC 9.99ms from Atlanta, US
206.23.6.1 AS19957 AT&T Enterprises, LLC 16.79ms from Atlanta, US
198.146.81.254 AS19957 AT&T Enterprises, LLC 7.50ms from Atlanta, US
198.146.87.17 AS19957 AT&T Enterprises, LLC 7.12ms 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

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
92.68.154.213 AS1136 KPN B.V. 2.63ms from Amsterdam, NL
93.188.70.181 AS39855 Mod Mission Critical LLC 0.25ms from Amsterdam, NL
124.238.225.5 AS58539 Langfang,Hebei province, P.R.China 8.01ms from Beijing, CN
59.93.75.165 AS9829 National Internet Backbone 19.02ms from Chennai, IN
221.13.51.197 AS4837 CHINA UNICOM China169 Backbone 3.11ms from Guiyang, CN
27.71.164.85 AS7552 Viettel Group 10.37ms from Ho Chi Minh City, VN
91.217.164.5 AS51455 Airbus Defence and Space SAS 11.94ms from Paris, FR
63.249.105.5 AS11994 Cruzio 2.35ms from San Jose, US
179.48.88.37 AS271117 Ultranet Ipava Telecom Ltda 0.57ms from Sao Paulo, BR
115.139.119.149 AS17858 LG POWERCOMM 1.83ms from Seoul, KR
106.54.102.5 AS45090 Shenzhen Tencent Computer Systems Company Limited 1.51ms from Shanghai, CN
113.224.251.229 AS4837 CHINA UNICOM China169 Backbone 2.20ms from Tieling, CN
144.228.150.245 AS174 Cogent Communications, LLC 0.87ms from Chicago, US
85.20.62.5 AS8968 BT Italia S.p.A. 1.15ms from Milan, IT
72.201.186.53 AS22773 Cox Communications Inc. 1.06ms from Phoenix, US
173.28.103.213 AS30036 Mediacom Communications Corp 6.50ms from Phoenix, US
73.222.133.149 AS7922 Comcast Cable Communications, LLC 5.37ms from San Jose, US
181.219.240.37 AS28573 Claro NXT Telecomunicacoes Ltda 6.00ms from Sao Paulo, BR
14.64.96.53 AS4766 Korea Telecom 1.89ms from Seoul, KR
218.155.73.101 AS4766 Korea Telecom 2.87ms from Seoul, KR
183.193.199.37 AS24400 Shanghai Mobile Communications Co.,Ltd. 4.63ms from Shanghai, CN
108.143.191.85 AS8075 Microsoft Corporation 0.19ms from Amsterdam, NL
169.47.157.69 AS36351 IBM Cloud 0.44ms from Ashburn, US
16.147.80.229 AS16509 Amazon.com, Inc. 0.18ms from Boardman, US
76.79.16.101 AS11427 Charter Communications Inc 19.84ms from Dallas, US

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 206.23.61.105
traceroute to 206.23.61.105 (206.23.61.105): 6 hops max, 52 byte packets
2 [AS58061] 38.180.36.1 0.267 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.

Data built with users in mind: reliable, accurate, and easy-to-use

Discover why industry-leading companies around the globe love our data. IPinfo's accurate insights fuel use cases from cybersecurity, data enrichment, web personalization, and much more.

Get Started for Free Contact Sales
IPinfo for all your IP geolocation needs

Our IP tools

Explore all tools
What is my IP

What is my IP

Test our data accuracy by viewing insights from your IP address.

See your IP address
Map IPs

Map IPs

Paste up to 500,000 IPs to see where they're located on a map.

Try Map IPs
Summarize IPs

Summarize IPs

Use our data visualization tool to create a visual overview of multiple IPs.

Try Summarize IPs