AS30573 Old Second Bancorp 🇺🇸 US

Announcing 1 prefixes, seen at the RIS collectors.

IPv4 prefixes

256 (1 × /24)

IPv6 prefixes

Upstreams

transit providers observed

Peers

settlement-free adjacencies

Downstreams

transit customers observed

Customer cone

ASes reachable through it

Registry and operator data

AS number: AS30573
Name: Old Second Bancorp
Organisation: Old Second Bancorp
Country: 🇺🇸 US
RIR: ARIN
Allocated: 2003-11-11

RPKI coverage of this AS

Its own announcements, validated against the current ROA set

0 valid (0.0%) 0 invalid (0.0%) 1 no ROA (100.0%)

Whois

Fetched from whois.arin.net

ASNumber:       30573
ASName:         OLDSECONDBANCORP
ASHandle:       AS30573
RegDate:        2003-11-11
Updated:        2026-05-05
Ref:            https://rdap.arin.net/registry/autnum/30573

OrgName:        Old Second Bancorp
OrgId:          OSB-9
Address:        37 South River Street
City:           Aurora
StateProv:      IL
PostalCode:     60506-4172
Country:        US
RegDate:        2003-08-27
Updated:        2011-09-24
Ref:            https://rdap.arin.net/registry/entity/OSB-9

OrgAbuseHandle: HOSTM308-ARIN
OrgAbuseName:   HOSTMASTER
OrgAbusePhone:  +1-630-892-0202
OrgAbuseEmail:  bschluntz@oldsecond.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/HOSTM308-ARIN

OrgTechHandle: HOSTM308-ARIN
OrgTechName:   HOSTMASTER
OrgTechPhone:  +1-630-892-0202
OrgTechEmail:  bschluntz@oldsecond.com
OrgTechRef:    https://rdap.arin.net/registry/entity/HOSTM308-ARIN

RTechHandle: HOSTM308-ARIN
RTechName:   HOSTMASTER
RTechPhone:  +1-630-892-0202
RTechEmail:  bschluntz@oldsecond.com
RTechRef:    https://rdap.arin.net/registry/entity/HOSTM308-ARIN