IPAS

IP prefix and autonomous system archive

AS577

IPv4 prefixes
6,153
Unique IPv4 addresses
7,030,272
IPv6 prefixes
71
Unique IPv6 /48 equivalents
133,805

Route freshness

Age since last updateTotalIPv4IPv6Share
< 5 min480480.8%
5-15 min0000.0%
15-60 min1,4751,4532223.7%
1-6 h13113012.1%
6-24 h818101.3%
1-3 d60260209.7%
3-7 d57557509.2%
7-30 d3,3123,312053.2%
30-90 d0000.0%
> 90 d0000.0%

IPv4 CIDR distribution

/16
99   1.6%
/17
4   0.1%
/18
7   0.1%
/19
5   0.1%
/20
19   0.3%
/21
43   0.7%
/22
118   1.9%
/23
93   1.5%
/24
5,765   93.7%
Bar length uses logarithmic scale; values and percentages are exact.

IPv6 CIDR distribution

/32
2   2.8%
/40
2   2.8%
/41
18   25.4%
/44
8   11.3%
/45
1   1.4%
/46
3   4.2%
/47
7   9.9%
/48
30   42.3%
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 16:50:19 to 2026-09-17 01:09:01.