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Summary IP address summary information Name
Schweitzer Engineering Laboratories, Inc. Country
Website
Hosted domains
27 IPv4 addresses
1,024 IPv6 addresses
0 ASN type
Business Registry
ARIN Allocated
17 years ago on Sep 17, 2009 Updated
14 years ago on Mar 2, 2012
WHOIS
ASHandle: █████
OrgID: █████
ASName: ██████
ASNumber: AS█████
RegDate: ████-██-██
Updated: ████-██-██
TechHandle: ████-████
Source: ████
Powered by ASN to WHOIS data Important routers in AS4539
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 AS4539 at robtex .
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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 74.117.213.129
traceroute to 74.117.213.129 (74.117.213.129 ): 64 hops max, 52 byte packets
Measurement taken from IPinfo ProbeNet in Atlanta, US
On September 24, 2026
Netblock Company Num of IPs Schweitzer Engineering Laboratories, Inc.
1,024 Schweitzer Engineering Laboratories, Inc.
256
Powered by IP Ranges data
Places IPs in this network linked to physical places, based on their Wi-Fi networks.
Places IPs 1 1 New IPinfo Places identifies hotels, airports, stadiums, and more with building-level precision.
Explore Places There are 5 peers for this ASN.
ASN Name Rank AS209 CenturyLink Communications, LLC #57 AS3356 Level 3 Parent, LLC #2 AS7018 AT&T Enterprises, LLC #5 AS20055 Wholesail networks LLC #291 AS23138 FIRST STEP INTERNET, LLC #4,550
There are 4 upstreams for this ASN.
ASN Name Rank AS209 CenturyLink Communications, LLC #57 AS3356 Level 3 Parent, LLC #2 AS7018 AT&T Enterprises, LLC #5 AS20055 Wholesail networks LLC #291
There are 0 downstreams for this ASN.
No downstreams found.
Important routers in AS4539 Share of IPv4 footprint per hexagon Less More
Held location over 90 days 98%
Held location over 1 year 96%
Median days between moves 235 days
Geolocation scope National How consistently this network's IPs hold their geolocation. Read relative to the network type, not as a quality score.
There are 27 domain names hosted across 4 IP addresses on this ASN.
Pingable IPs 3 IPs in this ASN replied to an ICMP ping during our most recent internet scan. Learn more
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 12:00–13:00
Active hours 11 hrs
Weekend vs weekday weekdays heavier
Busiest day Thu
Network type Business
Geography United States 
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