asn.dev

Address space

AS9919 NCIC-TW New Century InfoComm Tech Co., Ltd.

Residential DROP-listed space APNIC

IPv4 prefixes 736 505K addresses
IPv6 prefixes 73
Most common size /24 IPv4
Flagged 0

Shape

IPv4 prefix sizes

All IPv4
/19
/19: 2
2
/20
/20: 22
22
/21
/21: 41
41
/22
/22: 111
111
/23
/23: 225
225
/24
/24: 335
335

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
/28
/28: 2
2
/29
/29: 2
2
/30
/30: 2
2
/31
/31: 1
1
/32
/32: 3
3
/33
/33: 3
3
/34
/34: 3
3
/35
/35: 2
2
/36
/36: 4
4
/37
/37: 4
4
/38
/38: 4
4
/39
/39: 4
4
/40
/40: 4
4
/41
/41: 4
4
/42
/42: 4
4
/43
/43: 4
4
/44
/44: 4
4
/45
/45: 4
4
/46
/46: 4
4
/47
/47: 6
6
/48
/48: 5
5

Geography

Where the space lands

CountryNamePrefixes
TWTaiwan, Province of China809