AS30573
Old Second Bancorp
AS30573 is Old Second Bancorp (oldsecond.com). It announces 256 IPv4 addresses in 1 prefix, and 0 IPv6 prefixes.
United States· ARIN· allocated 2003-11-11· business
256
IPv4 addresses announced
1
IPv4 prefix
0
IPv6 prefixes
0.00%
of its routes RPKI-valid
256
of its IPv4 geolocated
1
country
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 States256 · 100.00%
Registry record
Its ASN Whois record, as the registry publishes it.
- handle
- OLDSECONDBANCORP
- name
- Old Second Bancorp
- org
- OSB-9
- org name
- Old Second Bancorp
- org address
- 37 South River Street, Aurora, IL, 60506-4172
- org city
- Aurora
- org country
- US
- country
- US
- source
- arin
- created
- 2003-11-11
- updated
- 2026-05-05
- abuse name
- HOSTMASTER
- abuse email
- bschluntz@oldsecond.com
- abuse phone
- +1-630-892-0202
- abuse kind
- role
- abuse city
- Aurora
- abuse country
- US
- admin name
- HOSTMASTER
- admin email
- bschluntz@oldsecond.com
- admin phone
- +1-630-892-0202
- admin kind
- role
- admin city
- Aurora
- admin country
- US
- tech
- HOSTM308-ARIN
- tech name
- HOSTMASTER
- tech email
- bschluntz@oldsecond.com
- tech phone
- +1-630-892-0202
- tech kind
- role
- tech city
- Aurora
- tech country
- US
- abuse unvalidated since
- 2014-10-27
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.
- None here
- None here
- None here
- None here
- None here
- None here
- None here
- None here
- None here
- Carrier IP256AT&T100.00%
- None here
- None here
- None here
- None here
IPv4 prefixes
Every IPv4 prefix BGP Route saw it announce. A prefix another AS also announces says so.
| PREFIX | COUNTRY | RPKI | PEERS | FIRST SEEN |
|---|---|---|---|---|
| 12.48.114.0/24 | United States | not found | 16 | 2026-10-02 |
00 · Evaluate
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01 · License
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Standard, for detection and decisions inside your own product and operations.
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