IPAS

IP prefix and autonomous system archive

AS721

IPv4 prefixes
232
Unique IPv4 addresses
72,223,488
IPv6 prefixes
2
Unique IPv6 /48 equivalents
131,072

Route freshness

Age since last updateTotalIPv4IPv6Share
< 5 min0000.0%
5-15 min0000.0%
15-60 min4311.7%
1-6 h227227097.0%
6-24 h0000.0%
1-3 d3211.3%
3-7 d0000.0%
7-30 d0000.0%
30-90 d0000.0%
> 90 d0000.0%

IPv4 CIDR distribution

/8
2   0.9%
/9
1   0.4%
/10
1   0.4%
/11
3   1.3%
/12
3   1.3%
/13
9   3.9%
/14
18   7.8%
/15
31   13.4%
/16
53   22.8%
/17
6   2.6%
/18
15   6.5%
/19
4   1.7%
/20
12   5.2%
/21
18   7.8%
/22
7   3.0%
/23
15   6.5%
/24
34   14.7%
Bar length uses logarithmic scale; values and percentages are exact.

IPv6 CIDR distribution

/32
2   100.0%
Bar length uses logarithmic scale; values and percentages are exact.

Unique space removes overlap between prefixes announced by the same ASN. Update range: 2026-09-14 17:07:47 to 2026-09-17 00:17:19.