asn.dev

Address space

AS9848 SEJONGTELECOM-AS-KR SEJONG NETWORKS

Residential APNIC NSP

IPv4 prefixes 616 798K addresses
IPv6 prefixes 17
Most common size /24 IPv4
Flagged 64

Shape

IPv4 prefix sizes

All IPv4
/18
/18: 5
5
/19
/19: 14
14
/20
/20: 56
56
/21
/21: 79
79
/22
/22: 98
98
/23
/23: 130
130
/24
/24: 170
170
/31
/31: 2
2
/32
/32: 62
62

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
/32
/32: 1
1
/33
/33: 1
1
/34
/34: 1
1
/35
/35: 1
1
/36
/36: 1
1
/37
/37: 1
1
/38
/38: 1
1
/39
/39: 1
1
/40
/40: 1
1
/41
/41: 1
1
/42
/42: 1
1
/43
/43: 1
1
/44
/44: 1
1
/45
/45: 1
1
/46
/46: 1
1
/47
/47: 1
1
/48
/48: 1
1

Geography

Where the space lands

CountryNamePrefixes
KRKorea, Republic of633

Review

Flagged prefixes

64 of 633
PrefixFamilyAddressesCountryFlags
58.180.101.8/32IPv41KRToo specific
58.180.230.145/32IPv41KRToo specific
61.100.180.146/32IPv41KRToo specific
114.199.18.245/32IPv41KRToo specific
114.199.34.60/32IPv41KRToo specific
114.199.48.245/32IPv41KRToo specific
114.199.53.234/32IPv41KRToo specific
202.30.147.1/32IPv41KRToo specific
202.30.147.5/32IPv41KRToo specific
202.30.147.9/32IPv41KRToo specific
202.30.147.13/32IPv41KRToo specific
202.30.147.17/32IPv41KRToo specific
202.30.147.21/32IPv41KRToo specific
202.30.147.34/32IPv41KRToo specific
202.30.147.46/32IPv41KRToo specific
202.30.147.65/32IPv41KRToo specific
202.30.147.69/32IPv41KRToo specific
202.30.147.73/32IPv41KRToo specific
202.30.147.77/32IPv41KRToo specific
202.30.147.81/32IPv41KRToo specific
202.30.147.85/32IPv41KRToo specific
202.30.147.93/32IPv41KRToo specific
202.30.147.129/32IPv41KRToo specific
202.30.147.133/32IPv41KRToo specific
202.30.147.137/32IPv41KRToo specific

The first 25. Every flag also shows in the IPv4 and IPv6 lists.

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