IPAS

IP prefix and autonomous system archive

AS8151

IPv4 prefixes
13,238
Unique IPv4 addresses
13,595,904
IPv6 prefixes
507
Unique IPv6 /48 equivalents
2,293,823

Route freshness

Age since last updateTotalIPv4IPv6Share
< 5 min252410.2%
5-15 min1,1671,16708.5%
15-60 min2,7502,7351520.0%
1-6 h9,3419,2558668.0%
6-24 h389203692.8%
1-3 d231670.2%
3-7 d9720.1%
7-30 d4114270.3%
30-90 d0000.0%
> 90 d0000.0%

IPv4 CIDR distribution

/16
12   0.1%
/17
10   0.1%
/18
43   0.3%
/19
1,374   10.4%
/20
258   1.9%
/21
3,119   23.6%
/22
825   6.2%
/23
1,655   12.5%
/24
5,942   44.9%
Bar length uses logarithmic scale; values and percentages are exact.

IPv6 CIDR distribution

/32
35   6.9%
/48
472   93.1%
Bar length uses logarithmic scale; values and percentages are exact.

Unique space removes overlap between prefixes announced by the same ASN. Update range: 2026-08-19 13:27:16 to 2026-09-17 01:11:23.