asn.dev

Address space

AS7552 VIETEL-AS-AP Viettel Group

Mobile ARIN

IPv4 prefixes 1,120 4.96M addresses
IPv6 prefixes 5,303
Most common size /22 IPv4
Flagged 13

Shape

IPv4 prefix sizes

All IPv4
/15
/15: 2
2
/16
/16: 10
10
/17
/17: 32
32
/18
/18: 54
54
/19
/19: 92
92
/20
/20: 136
136
/21
/21: 211
211
/22
/22: 221
221
/23
/23: 197
197
/24
/24: 152
152
/25
/25: 2
2
/26
/26: 1
1
/27
/27: 3
3
/28
/28: 5
5
/29
/29: 1
1
/30
/30: 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
/30
/30: 1
1
/31
/31: 1
1
/32
/32: 1
1
/35
/35: 2
2
/36
/36: 10
10
/37
/37: 3
3
/38
/38: 5
5
/39
/39: 1
1
/40
/40: 18
18
/41
/41: 36
36
/42
/42: 101
101
/43
/43: 659
659
/44
/44: 844
844
/45
/45: 655
655
/46
/46: 790
790
/47
/47: 1,106
1,106
/48
/48: 1,070
1,070

Geography

Where the space lands

CountryNamePrefixes
VNViet Nam6,423

Review

Flagged prefixes

13 of 6,423
PrefixFamilyAddressesCountryFlags
27.68.242.0/25IPv4128VNToo specific
27.68.242.128/28IPv416VNToo specific
27.68.242.144/29IPv48VNToo specific
27.68.242.156/30IPv44VNToo specific
27.68.242.160/27IPv432VNToo specific
27.68.242.192/26IPv464VNToo specific
116.103.201.0/25IPv4128VNToo specific
116.103.201.128/27IPv432VNToo specific
116.103.201.160/28IPv416VNToo specific
116.103.201.176/28IPv416VNToo specific
116.103.201.192/28IPv416VNToo specific
116.103.201.208/28IPv416VNToo specific
116.103.201.224/27IPv432VNToo specific

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