asn.dev

Address space

AS131421 INTERCOM-VN Intercom Telecom., JSC

Unclassified APNIC

IPv4 prefixes 10 1.02K addresses
IPv6 prefixes 0
Most common size /23 IPv4
Flagged 8

Shape

IPv4 prefix sizes

All IPv4
/23
/23: 1
1
/24
/24: 1
1
/25
/25: 1
1
/26
/26: 1
1
/27
/27: 1
1
/28
/28: 1
1
/29
/29: 1
1
/30
/30: 1
1
/31
/31: 1
1
/32
/32: 1
1

A wall of /24s usually means many small customer assignments or fine-grained traffic engineering; a few short prefixes means large contiguous allocations announced whole.

Shape

IPv6 prefix sizes

All IPv6

This network announces no IPv6 we can see.

Geography

Where the space lands

CountryNamePrefixes
VNViet Nam10

Review

Flagged prefixes

8 of 10
PrefixFamilyAddressesCountryFlags
103.17.236.0/25IPv4128VNToo specific
103.17.236.128/26IPv464VNToo specific
103.17.236.192/27IPv432VNToo specific
103.17.236.224/28IPv416VNToo specific
103.17.236.240/29IPv48VNToo specific
103.17.236.248/30IPv44VNToo specific
103.17.236.252/31IPv42VNToo specific
103.17.236.254/32IPv41VNToo specific

A flag is an observation, not an accusation. Very large and very specific prefixes are both legitimate in the right context.