206208 looking glass

AS3743 Cleveland Cliffs Steel LLC 🇺🇸 US

Announcing 7 prefixes, seen at the RIS collectors.

IPv4 prefixes
7
1,792 (7 × /24)
IPv6 prefixes
0
-
Upstreams
1
transit providers observed
Peers
0
settlement-free adjacencies
Downstreams
0
transit customers observed
Customer cone
0
ASes reachable through it

Registry and operator data

AS number
AS3743
Name
Cleveland Cliffs Steel LLC
Organisation
Cleveland Cliffs Steel LLC
Country
🇺🇸 US
RIR
ARIN
Allocated
2009-09-09

RPKI coverage of this AS

Its own announcements, validated against the current ROA set

0 valid (0.0%) 0 invalid (0.0%) 7 no ROA (100.0%)

Whois

Fetched from whois.arin.net

ASNumber:       3743
ASName:         ARCEL-2
ASHandle:       AS3743
RegDate:        2009-09-09
Updated:        2023-06-30
Comment:        WDS3-ARIN00
Ref:            https://rdap.arin.net/registry/autnum/3743

OrgName:        Cleveland Cliffs Steel LLC
OrgId:          ARCEL-2
Address:        1 SOUTH DEARBORN, 19TH FLOOR
City:           CHICAGO
StateProv:      IL
PostalCode:     60603
Country:        US
RegDate:        2009-08-14
Updated:        2025-11-24
Ref:            https://rdap.arin.net/registry/entity/ARCEL-2

OrgTechHandle: ABUSE9467-ARIN
OrgTechName:   Abuse
OrgTechPhone:  +1-216-694-5700
OrgTechEmail:  arinadmin@clevelandcliffs.com
OrgTechRef:    https://rdap.arin.net/registry/entity/ABUSE9467-ARIN

OrgNOCHandle: ABUSE9467-ARIN
OrgNOCName:   Abuse
OrgNOCPhone:  +1-216-694-5700
OrgNOCEmail:  arinadmin@clevelandcliffs.com
OrgNOCRef:    https://rdap.arin.net/registry/entity/ABUSE9467-ARIN

OrgAbuseHandle: ABUSE9467-ARIN
OrgAbuseName:   Abuse
OrgAbusePhone:  +1-216-694-5700
OrgAbuseEmail:  arinadmin@clevelandcliffs.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/ABUSE9467-ARIN

RNOCHandle: MPC47-ARIN
RNOCName:   Collins, Michelle P
RNOCPhone:  +1-513-425-5000
RNOCEmail:  michelle.collins@clevelandcliffs.com
RNOCRef:    https://rdap.arin.net/registry/entity/MPC47-ARIN

RAbuseHandle: MPC47-ARIN
RAbuseName:   Collins, Michelle P
RAbusePhone:  +1-513-425-5000
RAbuseEmail:  michelle.collins@clevelandcliffs.com
RAbuseRef:    https://rdap.arin.net/registry/entity/MPC47-ARIN

RTechHandle: MPC47-ARIN
RTechName:   Collins, Michelle P
RTechPhone:  +1-513-425-5000
RTechEmail:  michelle.collins@clevelandcliffs.com
RTechRef:    https://rdap.arin.net/registry/entity/MPC47-ARIN