asn.dev

Address space

AS45899 VNPT-AS-VN VNPT Corp

Mobile APNIC Cable/DSL/ISP

IPv4 prefixes 1,520 7.65M addresses
IPv6 prefixes 377
Most common size /23 IPv4
Flagged 15

Shape

IPv4 prefix sizes

All IPv4
/15
/15: 11
11
/16
/16: 24
24
/17
/17: 40
40
/18
/18: 60
60
/19
/19: 99
99
/20
/20: 134
134
/21
/21: 209
209
/22
/22: 288
288
/23
/23: 351
351
/24
/24: 289
289
/25
/25: 3
3
/26
/26: 3
3
/27
/27: 3
3
/28
/28: 2
2
/29
/29: 2
2
/30
/30: 1
1
/31
/31: 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
/33
/33: 1
1
/34
/34: 2
2
/35
/35: 3
3
/36
/36: 5
5
/37
/37: 9
9
/38
/38: 15
15
/39
/39: 36
36
/40
/40: 62
62
/41
/41: 68
68
/42
/42: 133
133
/43
/43: 8
8
/44
/44: 6
6
/45
/45: 6
6
/46
/46: 6
6
/47
/47: 8
8
/48
/48: 9
9

Geography

Where the space lands

CountryNamePrefixes
VNViet Nam1,897

Review

Flagged prefixes

15 of 1,897
PrefixFamilyAddressesCountryFlags
113.161.141.0/29IPv48VNToo specific
113.161.141.16/28IPv416VNToo specific
113.161.141.32/27IPv432VNToo specific
113.161.141.64/26IPv464VNToo specific
113.161.141.128/25IPv4128VNToo specific
113.164.240.0/25IPv4128VNToo specific
113.164.240.128/26IPv464VNToo specific
113.164.240.192/27IPv432VNToo specific
203.162.241.0/26IPv464VNToo specific
203.162.241.64/29IPv48VNToo specific
203.162.241.72/30IPv44VNToo specific
203.162.241.76/31IPv42VNToo specific
203.162.241.80/28IPv416VNToo specific
203.162.241.96/27IPv432VNToo specific
203.162.241.128/25IPv4128VNToo specific

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