AS9911 Singapore Telecommunications Ltd

AS9911Singapore Telecommunications LtdMobile

WHOIS Topology

Singapore · APNIC

IPv4 addresses

12,288

12 announced prefixes

IPv6 addresses

—

0 announced prefixes

BGP neighbours

…

CAIDA rank

#17,392

Customer cone 1 ASNs

RPKI

8% valid

0 invalid · 11 not covered

Average purity

34 sampled IPs

IXPs / facilities

0 / 0

Operator self-reported

Allocated

2008-09-04

APNIC

History

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

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IP ranges

Currently announced prefixes with their RIR registration and geolocation.

Prefix	RPKI	Registration	Geolocation	Addresses
101.192.76.0/22	Not found	BSHNETAPNIC	SingaporeCross-border	1,024
101.192.80.0/22	Not found	BSHNETAPNIC	SingaporeCross-border	1,024
101.193.84.0/22	Not found	BSHNETAPNIC	SingaporeCross-border	1,024
101.193.88.0/22	Not found	BSHNETAPNIC	SingaporeCross-border	1,024
101.193.92.0/22	Not found	BSHNETAPNIC	SingaporeCross-border	1,024
103.114.72.0/22	Valid	YbnetworkAPNIC	TokyoCross-border	1,024
117.120.200.0/22	Not found	XMGDNETAPNIC	SingaporeCross-border	1,024
117.120.204.0/22	Not found	XMGDNETAPNIC	SingaporeCross-border	1,024
117.120.240.0/22	Not found	XMGDNETAPNIC	SingaporeCross-border	1,024
117.120.244.0/22	Not found	XMGDNETAPNIC	SingaporeCross-border	1,024
211.102.176.0/22	Not found	LFCOMAPNIC	SingaporeCross-border	1,024
211.102.180.0/22	Not found	LFCOMAPNIC	SingaporeCross-border	1,024

/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 13 / 48 （27%） · flagged 0

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

101.193.84.0/224/4 with data · 0 flagged

101.193.88.0/224/4 with data · 0 flagged

101.192.76.0/221/4 with data · 0 flagged

117.120.200.0/221/4 with data · 0 flagged

117.120.240.0/221/4 with data · 0 flagged

211.102.176.0/221/4 with data · 0 flagged

211.102.180.0/221/4 with data · 0 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 2470–84 950–69 10–49 0

<0.01%

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.

Singapore91.7%
Japan8.3%

Scope: Regional
In registered country: 91.7%

Estimated by sampling IPv4 ranges against a geolocation database.

Traffic observation

AS9911 · Last 7 days

Mobile vs. Desktop

Desktop98.0%Mobile2.0%

Bot vs. Human

Human58.3%Bot41.7%

Adoption & Usage

Adoption and usage of key protocols

Internet Protocol (IP) Version

IPv4100.0%IPv60%

HTTP Version

HTTP/1.x

24.3%HTTP/2

75.3%HTTP/3

0.5%

HTTP vs. HTTPS

99.5% HTTPS (encrypted)

Plain HTTP 0.5%

TLS Version

TLS 1.0/1.10%TLS 1.27.8%TLS 1.391.7%QUIC0.5%

Security & Attacks

Insights into network and application layer attack traffic

Layer 7 Attacks

GET

65.2%HEAD

17.4%POST

17.4%

BGP Announcements

Hourly BGP route announcements over the last 7 days

175,489

7-day total

91,107

Hourly peak

Data: Cloudflare Radar, licensed under 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: 09:00–10:00
Active hours: 20 hrs
Weekend vs weekday: Weekdays heavier
Busiest day: Tue

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BGP upstreams and neighbours

AS9911Standalone page

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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
Registered address & allocation date	RIR registration data (RDAP)	2026-07-31
Organization & company country	AS-to-organization data	2026-10-21
Network type	CleanIP ASN canon	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
IP reputation	CleanIP lookups and neighbour sampling	—

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Multi-source cross-checks · In-house reputation data · Real data only