AS45250 Siang Yu Science And Technology Limited

AS45250Siang Yu Science And Technology LimitedDatacenter

WHOIS Topology

Taiwan · APNICvocom.com

IPv4 addresses

10 240

41 announced prefixes

IPv6 addresses

7.92 × 10²⁸

7 announced prefixes

BGP neighbours

…

CAIDA rank

#1 218

Customer cone 30 ASNs

Estimated users

635

APNIC: 644

RPKI

33% valid

0 invalid · 32 not covered

Average purity

1 sampled IPs

IXPs / facilities

5 / 19

Operator self-reported

History

How prefixes were announced and changed hands, registration changes, and outage or hijack incidents.

Loading routing history…

IP ranges

Currently announced prefixes with their RIR registration and geolocation.

Prefix	RPKI	Registration	Geolocation	Addresses
38.150.64.0/22	Not found	—	United States	1 024
103.75.78.0/23	Valid	SHING-HKAPNIC	Hong Kong	512
38.70.77.0/24	Not found	—	Los Angeles	256
38.150.64.0/24	Not found	—	United States	256
38.150.65.0/24	Not found	—	United States	256
38.150.66.0/24	Not found	—	United States	256
38.150.69.0/24	Not found	—	United States	256
38.150.71.0/24	Not found	—	United States	256
45.135.46.0/24	Not found	HK-HKKWAIFONG-20190730RIPE	TokyoCross-border	256
103.40.77.0/24	Valid	SZKF-HKAPNIC	Hong Kong	256
103.75.78.0/24	Valid	SHING-HKAPNIC	Hong Kong	256
103.75.79.0/24	Valid	SHING-HKAPNIC	Hong Kong	256
103.183.247.0/24	Valid	BIT-PHAPNIC	Philippines	256
114.199.64.0/24	Valid	VITHK1-APAPNIC	Hong Kong	256
114.199.65.0/24	Not found	VITHK-APAPNIC	Hong Kong	256
114.199.66.0/24	Valid	VITTWT-APAPNIC	Hong KongCross-border	256
114.199.67.0/24	Not found	VITHK-APAPNIC	Hong Kong	256
114.199.68.0/24	Not found	VITHK-APAPNIC	Hong Kong	256
114.199.69.0/24	Not found	VITHK-APAPNIC	Hong Kong	256
114.199.70.0/24	Not found	VITHK-APAPNIC	Hong Kong	256

/24 block profile

One square per /24: colour shows the risk type, shade how many addresses are flagged, stripes mark datacenter blocks. Click a square to see all 256 addresses.

/24s with data 3 / 40 （8%） · flagged 2

No risk flagsDatacenter (no flags)ProxyVPNAbuse / blocklistTorDarker = more flagged addresses; dashed = block screen only

38.150.64.0/221/4 with data · 1 flagged

193.5.25.0/241/1 with data · 0 flagged

208.90.121.0/241/1 with data · 1 flagged

Hover a square for its numbers; click to see all 256 addresses.

Each prefix shows its 64 /24s with the most data. Built daily from lookups, neighbour sampling, public lists and block screening.

IP reputation

IPs from this network that CleanIP has analysed: purity, abuse reports and the riskiest /24 blocks.

Purity distribution

85–100 070–84 150–69 00–49 0

0.05%

Share of IPv4 reported or blocklisted

Listed IPs

Analysed IPs

Flagged = VPN, proxy, Tor or purity below 50. Samples come from user lookups and neighbour sampling, not every address in this network.

Geography

Where this network’s IPv4 addresses are located.

Registered in Taiwan, but none of the sampled addresses geolocate there.

Hong Kong55.0%
United States25.0%
Japan15.0%
Philippines2.5%
United Arab Emirates2.5%

Scope: Regional
In registered country: 0.0%

Estimated by sampling IPv4 ranges against a geolocation database.

Observation du trafic

AS45250 · 7 derniers jours

Mobile vs ordinateur

Ordinateur73.2%Mobile26.8%

Robot vs humain

Humain81.6%Robot18.4%

Adoption et usage

Adoption et usage des principaux protocoles

Version du protocole Internet (IP)

IPv4> 99.9%IPv6< 0.1%

Version HTTP

HTTP/1.x

17.1%HTTP/2

41.3%HTTP/3

41.6%

HTTP vs HTTPS

99.4% HTTPS (chiffré)

HTTP en clair 0.6%

Version TLS

TLS 1.0/1.10%TLS 1.27.2%TLS 1.350.9%QUIC41.9%

Sécurité et attaques

Aperçu du trafic d'attaque sur les couches réseau et application

Attaques de couche 7

GET

100.0%

Annonces BGP

Annonces de routes BGP par heure sur les 7 derniers jours

659 619

Total sur 7 jours

34 317

Pic horaire

Données : Cloudflare Radar, sous licence CC BY-NC 4.0

Activity

Hourly traffic over the last 7 days, normalized to this network’s peak.

A pronounced day/night rhythm, typical of networks with human users.

	00						06						12						18
Mon
Tue
Wed
Thu
Fri
Sat
Sun

Times in UTCLessMore

Peak hour: 03:00–04:00
Active hours: 12 hrs
Weekend vs weekday: Weekdays heavier
Busiest day: Mon

Chargement…

Opérateurs amont et voisins BGP

AS45250Page dédiée

Chargement des opérateurs amont et des voisins…

WHOIS record

The registry’s record for this AS number: holder, status, dates and contacts.

Sources

Where the information on this page comes from and when it was updated.

Information	Source	Updated
Registered country	RIR daily delegation statistics	2026-10-22
Organization & company country	AS-to-organization data	2026-10-22
Network type	CleanIP ASN canon	2026-10-22
Exchanges & facilities	Operator self-reported interconnection data	2026-10-22
Announced prefixes & BGP neighbours	Public BGP routing data	2026-10-22
IPv4 geography	Geolocation database	—
RPKI validation	RPKI ROA validation data	2026-10-22
Rank & customer cone	CAIDA AS Rank	2026-10-01
Estimated users (APNIC)	APNIC Labs user estimates	2026-10-20
IP reputation	CleanIP lookups and neighbour sampling	—

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Recoupement multisource · Données de réputation internes · Uniquement des données réelles