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Summary IP address summary information Name
Institute for Defense Analyses Country
Website
Hosted domains
0 IPv4 addresses
256 IPv6 addresses
0 ASN type
Government Registry
ARIN Allocated
7 months ago on Feb 19, 2026 Updated
7 months ago on Feb 19, 2026
WHOIS
ASHandle: █████
OrgID: █████
ASName: ██████
ASNumber: AS█████
RegDate: ████-██-██
Updated: ████-██-██
TechHandle: ████-████
Source: ████
Powered by ASN to WHOIS data Important routers in AS398948
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 AS398948 at robtex .
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Stub AS
Stub AS
Pingable IPs 0 IPs in this ASN replied to an ICMP ping during our most recent internet scan. Learn more
Other Pingable IPs IP Address ASN Details 204.95.160.4 Ping AS174 Cogent Communications, LLC #6 0.23ms from Atlanta, US 20.140.232.196 Ping AS8070 Microsoft Corporation #4,660 0.65ms from Boydton, US 123.145.111.244 Ping AS4837 CHINA UNICOM China169 Backbone #10 2.37ms from Chongqing, CN 185.111.193.84 Ping AS42605 Ratiodata SE #16,793 0.48ms from Frankfurt am Main, DE 125.178.45.20 Ping AS17858 LG POWERCOMM #97 2.77ms from Incheon, KR 137.78.150.148 Ping AS127 Jet Propulsion Laboratory #7,410 2.32ms from Los Angeles, US 104.186.73.100 Ping AS7018 AT&T Enterprises, LLC #5 2.93ms from Miami, US 24.46.43.100 Ping AS6128 Cablevision Systems Corp. #99 7.38ms from New York City, US 71.27.27.228 Ping AS7922 Comcast Cable Communications, LLC #1 7.14ms from New York City, US 194.223.252.4 Ping AS18081 Kintetsu Cable Network Co., Ltd. #405 1.26ms from Osaka, JP
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Traceroute Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this ASN. Learn more. Traceroute →
$ traceroute -a -n -q1 -f3 192.203.205.3
traceroute to 192.203.205.3 (192.203.205.3 ): 64 hops max, 52 byte packets
Measurement taken from IPinfo ProbeNet in Los Angeles, US
On September 24, 2026
There are 1 peers for this ASN.
ASN Name Rank AS7018 AT&T Enterprises, LLC #5
There are 1 upstreams for this ASN.
ASN Name Rank AS7018 AT&T Enterprises, LLC #5
There are 0 downstreams for this ASN.
No downstreams found.
Share of IPv4 footprint per hexagon Less More
Held location over 90 days 100%
Held location over 1 year 100%
Median days between moves 0 days
Geolocation scope City How consistently this network's IPs hold their geolocation. Read relative to the network type, not as a quality score.
There are 0 domain names hosted across 0 IP addresses on this ASN.
No domains found.
Activity A pronounced day/night rhythm — the signature of a consumer/eyeball network whose users sleep at night.
Times shown in United States local time (UTC-8). Less More
Peak hour 10:00–11:00
Active hours 10 hrs (business hours)
Weekend vs weekday weekdays heavier
Busiest day Wed
Network type Government
Geography United States 
