Stack41, llc.
AS394621 is Stack41, llc. (dataholdings.com). It announces 2,304 IPv4 addresses in 10 prefixes, and 1 IPv6 prefixes.
United States· ARIN· allocated 2015-10-30· isp
Where its space is
The IPv4 it announces that IP Geolocation places, by country. A /24 counts for the AS announcing most of it.
- United States2,304 · 100.00%
Registry record
Its ASN Whois record, as the registry publishes it.
- handle
- DATAHOLDINGS-414-USA
- name
- Stack41, llc.
- org
- SL-747
- org name
- Stack41, llc.
- org address
- 3135 W Highland Blvd, Milwaukee, WI, 53208
- org city
- Milwaukee
- org country
- US
- country
- US
- source
- arin
- created
- 2015-10-30
- updated
- 2022-09-26
- remarks
- www.dataholdings.com
- abuse name
- Ryan Brooks
- abuse email
- ryan.brooks@dataholdings.com
- abuse phone
- +1-414-628-1169
- abuse kind
- person
- abuse city
- Milwaukee
- abuse country
- US
- admin name
- Ryan Brooks
- admin email
- ryan.brooks@dataholdings.com
- admin phone
- +1-414-628-1169
- admin kind
- person
- admin city
- Milwaukee
- admin country
- US
- tech name
- Ryan Brooks
- tech email
- ryan.brooks@dataholdings.com
- tech phone
- +1-414-628-1169
- tech kind
- person
- tech city
- Milwaukee
- tech country
- US
What the databases see
Addresses each address-keyed database holds in the IPv4 it announces, as a share of that space, with its largest providers. Counts overlap.
- VPN IP552.39%
- None here
- None here
- None here
- None here
- None here
- Hosting IP76833.33%
- None here
- None here
- None here
- SSH IP381.65%
- 0.39%
- 0.22%
IPv4 prefixes
Every IPv4 prefix BGP Route saw it announce. A prefix another AS also announces says so.
| PREFIX | COUNTRY | RPKI | PEERS | FIRST SEEN |
|---|---|---|---|---|
| 50.227.99.0/24 | United States | valid | 16 | 2026-10-02 |
| 148.59.37.0/24 | United States | not found | 18 | 2026-10-02 |
| 148.59.133.0/24 | United States | not found | 18 | 2026-10-02 |
| 161.38.16.0/22 | United States | not found | 18 | 2026-10-02 |
| 161.38.16.0/24 | United States | not found | 17 | 2026-10-02 |
| 161.38.17.0/24 | United States | not found | 17 | 2026-10-02 |
| 161.38.18.0/24 | United States | not found | 17 | 2026-10-02 |
| 161.38.19.0/24 | United States | not found | 17 | 2026-10-02 |
| 162.223.125.0/24 | United States | not found | 18 | 2026-10-02 |
| 207.166.139.0/24 | United States | valid | 18 | 2026-10-02 |
IPv6 prefixes
Every IPv6 prefix BGP Route saw it announce.
| PREFIX | COUNTRY | RPKI | PEERS | FIRST SEEN |
|---|---|---|---|---|
| 2604:2240::/32 | United States | not found | 20 | 2026-10-02 |
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