Medical College of Wisconsin
AS33503 is Medical College of Wisconsin (mcw.edu). It announces 65,536 IPv4 addresses in 6 prefixes, and 1 IPv6 prefixes.
United States· ARIN· allocated 2005-01-05· education
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 States65,536 · 100.00%
Registry record
Its ASN Whois record, as the registry publishes it.
- handle
- MCW-1-AS
- name
- Medical College of Wisconsin
- org
- MCW-1
- org name
- Medical College of Wisconsin
- org address
- MIS Department - Information Services 8701 Watertown Plank Road, Milwaukee, WI, 53226
- org city
- Milwaukee
- org country
- US
- country
- US
- source
- arin
- created
- 2005-01-05
- updated
- 2012-03-20
- abuse name
- Medical College of Wisconsin Information Services
- abuse email
- hostmaster@mcw.edu
- abuse phone
- +1-414-955-4357
- abuse kind
- role
- abuse city
- Milwaukee
- abuse country
- US
- admin name
- Medical College of Wisconsin Information Services
- admin email
- hostmaster@mcw.edu
- admin phone
- +1-414-955-4357
- admin kind
- role
- admin city
- Milwaukee
- admin country
- US
- tech
- MH4-ORG-ARIN
- tech name
- Medical College of Wisconsin Information Services
- tech email
- hostmaster@mcw.edu
- tech phone
- +1-414-955-4357
- tech kind
- role
- 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.
- 0.00%
- anyip0.00%
- None here
- None here
- None here
- None here
- None here
- None here
- None here
- None here
- None here
- None here
- 0.00%
IPv4 prefixes
Every IPv4 prefix BGP Route saw it announce. A prefix another AS also announces says so.
| PREFIX | COUNTRY | RPKI | PEERS | FIRST SEEN |
|---|---|---|---|---|
| 141.106.0.0/16 | United States | valid | 20 | 2026-10-02 |
| 141.106.12.0/24 | United States | valid | 20 | 2026-10-02 |
| 141.106.67.0/24 | United States | valid | 20 | 2026-10-02 |
| 141.106.68.0/24 | United States | valid | 20 | 2026-10-02 |
| 141.106.69.0/24 | United States | valid | 20 | 2026-10-02 |
| 141.106.114.0/24 | United States | valid | 20 | 2026-10-02 |
IPv6 prefixes
Every IPv6 prefix BGP Route saw it announce.
| PREFIX | COUNTRY | RPKI | PEERS | FIRST SEEN |
|---|---|---|---|---|
| 2620:10d::/44 | United States | valid | 20 | 2026-10-02 |
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