AS9649 Information Technology Office

MOPH-TH-AP - Information Technology Office · registered in Singapore

IPv4 addresses65,53624 prefixes · 0.002% of announced IPv4

Rank in Singapore#22largest network in SG by IPv4 space, of 443 · 0.77% of SG

Rank worldwide#2,974of 79,396 networks with IPv4

IPv61 x /481 prefixes

CountrySingapore457 ASNs registered there

Open AS9649 in ASN lookup Look up an IP in this network (203.157.0.1) All networks in Singapore

IPv4 prefixes

All 24 prefixes, in address order.

203.157.0.0/21
203.157.8.0/21
203.157.16.0/20
203.157.32.0/21
203.157.40.0/21
203.157.48.0/20
203.157.64.0/20
203.157.80.0/23
203.157.82.0/23
203.157.84.0/22
203.157.88.0/24
203.157.89.0/24
203.157.90.0/23
203.157.92.0/22
203.157.96.0/21
203.157.104.0/21
203.157.112.0/20
203.157.128.0/20
203.157.144.0/21
203.157.152.0/23
203.157.154.0/23
203.157.156.0/22
203.157.160.0/19
203.157.192.0/18

IPv6 prefixes

All 1 prefix.

2001:df5:5c00::/48

Similar-sized networks in Singapore

ASNNameIPv4 addresses

AS141995#19 CAPL-AS-AP - Contabo Asia Private Limited66,559

AS23856#20 SPTEL-AS-AP - SPTEL PTE. LTD.66,048

AS45133#21 Singapore-Polytechnic-AS-AP - Singapore Polytechnic65,536

AS9877#23 NGEEANN-POLY-AS-AP - Ngee Ann Polytechnic Computer Center65,536

AS7472#24 NUS-AS-AP - NUS Information Technology65,024

AS9419#25 NTU-AS-AP - Nanyang Technological University60,928

IP-to-ASN data: iptoasn.com (public domain). Snapshot downloaded 2026-11-11, refreshed daily. Ranges are what each network announces in BGP, not registry allocations. Data sources