asn.dev

Address space

AS749 DNIC-AS-00749

Unclassified ARIN

IPv4 prefixes 5,222 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: 299
299
/19
/19: 369
369
/20
/20: 466
466
/21
/21: 592
592
/22
/22: 701
701
/23
/23: 900
900
/24
/24: 1,186
1,186

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 America5,222

Review

Flagged prefixes

2 of 5,222
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.