IPAS

IP prefix and autonomous system archive

AS4837

IPv4 prefixes
1,519
Unique IPv4 addresses
57,734,400
IPv6 prefixes
652
Unique IPv6 /48 equivalents
26,357,045

Route freshness

Age since last updateTotalIPv4IPv6Share
< 5 min0000.0%
5-15 min0000.0%
15-60 min1,3391,337261.7%
1-6 h17117107.9%
6-24 h647164629.8%
1-3 d2110.1%
3-7 d3120.1%
7-30 d9810.4%
30-90 d0000.0%
> 90 d0000.0%

IPv4 CIDR distribution

/11
3   0.2%
/12
9   0.6%
/13
27   1.8%
/14
39   2.6%
/15
58   3.8%
/16
113   7.4%
/17
48   3.2%
/18
73   4.8%
/19
80   5.3%
/20
68   4.5%
/21
68   4.5%
/22
171   11.3%
/23
76   5.0%
/24
686   45.2%
Bar length uses logarithmic scale; values and percentages are exact.

IPv6 CIDR distribution

/30
5   0.8%
/32
376   57.7%
/33
4   0.6%
/34
3   0.5%
/35
4   0.6%
/36
46   7.1%
/40
12   1.8%
/41
2   0.3%
/42
1   0.2%
/44
4   0.6%
/47
4   0.6%
/48
191   29.3%
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 12:35:44 to 2026-09-17 00:54:47.