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Summary IP address summary information Name
Terasyst Ltd Country
Website
Hosted domains
33 IPv4 addresses
5,120 IPv6 addresses
0 ASN type
ISP Registry
RIPE Allocated
22 years ago on May 11, 2004 Updated
3 years ago on Jul 6, 2023
WHOIS
ASHandle: █████
OrgID: █████
ASName: ██████
ASNumber: AS█████
RegDate: ████-██-██
Updated: ████-██-██
TechHandle: ████-████
Source: ████
Powered by ASN to WHOIS data Important routers in AS31420
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 AS31420 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 -f2 5.104.184.61
traceroute to 5.104.184.61 (5.104.184.61 ): 64 hops max, 52 byte packets
Measurement taken from IPinfo ProbeNet in Sofia, BG
On September 17, 2026
Netblock Company Num of IPs Terasyst Ltd
256 Terasyst Ltd
256 Terasyst Ltd
256 Terasyst Ltd
256 Terasyst Ltd
256 Terasyst Ltd
256 Terasyst Ltd
256 Terasyst Ltd
256 Terasyst Ltd
256 Terasyst Ltd
256
Show more IP Ranges
Powered by IP Ranges data There are 2 peers for this ASN.
There are 2 upstreams for this ASN.
There are 0 downstreams for this ASN.
No downstreams found.
Important routers in AS31420 Share of IPv4 footprint per hexagon Less More
Held location over 90 days 100%
Held location over 1 year 99%
Median days between moves 408 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 33 domain names hosted across 8 IP addresses on this ASN.
Pingable IPs 20 IPs in this ASN replied to an ICMP ping during our most recent internet scan. Learn more
IP Address ASN Details 5.104.190.1 Ping AS31420 Terasyst Ltd #18,493 3.13ms from Sofia, BG 5.104.186.1 Ping AS31420 Terasyst Ltd #18,493 3.17ms from Sofia, BG 79.134.176.1 Ping AS31420 Terasyst Ltd #18,493 3.02ms from Sofia, BG 5.104.187.1 Ping AS31420 Terasyst Ltd #18,493 3.16ms from Sofia, BG 5.104.184.1 Ping AS31420 Terasyst Ltd #18,493 3.14ms from Sofia, BG 193.151.83.193 Ping AS31420 Terasyst Ltd #18,493 3.11ms from Sofia, BG 79.134.178.1 Ping AS31420 Terasyst Ltd #18,493 3.10ms from Sofia, BG 5.104.185.1 Ping AS31420 Terasyst Ltd #18,493 3.14ms from Sofia, BG 79.134.171.1 Ping AS31420 Terasyst Ltd #18,493 3.75ms from Sofia, BG 79.134.179.1 Ping AS31420 Terasyst Ltd #18,493 3.05ms from Sofia, BG
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Activity A pronounced day/night rhythm — the signature of a consumer/eyeball network whose users sleep at night.
Places IPs in this network linked to physical places, based on their Wi-Fi networks.
Places IPs 29 11 8 3 Category In AS31420 Example IP
Show more
Times shown in Bulgaria local time (UTC+2). Less More
Peak hour 13:00–14:00
Active hours 22 hrs (around the clock)
Weekend vs weekday weekdays heavier
Busiest day Tue
Network type Consumer ISP
Geography Bulgaria New IPinfo Places identifies hotels, airports, stadiums, and more with building-level precision.
Explore Places 
Hotel
Restaurant
Retail