asn.dev

Address space

AS749 DNIC-AS-00749

Unclassified ARIN

IPv4 prefixes 5,214 222M addresses
IPv6 prefixes 0
Most common size /24 IPv4
Flagged 2

Shape

IPv4 prefix sizes

All IPv4
/8
/8: 2
2
/9
/9: 5
5
/10
/10: 4
4
/11
/11: 16
16
/12
/12: 20
20
/13
/13: 23
23
/14
/14: 51
51
/15
/15: 92
92
/16
/16: 274
274
/17
/17: 222
222
/18
/18: 301
301
/19
/19: 370
370
/20
/20: 465
465
/21
/21: 588
588
/22
/22: 696
696
/23
/23: 898
898
/24
/24: 1,187
1,187

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
USUnited States of America5,214

Review

Flagged prefixes

2 of 5,214
PrefixFamilyAddressesCountryFlags
30.0.0.0/8IPv416,777,216USVery large
33.0.0.0/8IPv416,777,216USVery large

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