AS3743
Cleveland Cliffs Steel LLC
AS3743 is Cleveland Cliffs Steel LLC (clevelandcliffs.com). It announces 1,792 IPv4 addresses in 7 prefixes, and 0 IPv6 prefixes.
United States· ARIN· allocated 2009-09-09· business
1,792
IPv4 addresses announced
7
IPv4 prefixes
0
IPv6 prefixes
0.00%
of its routes RPKI-valid
1,792
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 States1,792 · 100.00%
Registry record
Its ASN Whois record, as the registry publishes it.
- handle
- ARCEL-2
- name
- Cleveland Cliffs Steel LLC
- org
- ARCEL-2
- org name
- Cleveland Cliffs Steel LLC
- org address
- 1 SOUTH DEARBORN, 19TH FLOOR, CHICAGO, IL, 60603
- org city
- CHICAGO
- org country
- US
- country
- US
- source
- arin
- created
- 2009-09-09
- updated
- 2023-06-30
- remarks
- WDS3-ARIN00
- abuse name
- Abuse
- abuse email
- arinadmin@clevelandcliffs.com
- abuse phone
- +1-216-694-5700
- abuse kind
- role
- abuse city
- Cleveland
- abuse country
- US
- admin name
- Abuse
- admin email
- arinadmin@clevelandcliffs.com
- admin phone
- +1-216-694-5700
- admin kind
- role
- admin city
- Cleveland
- admin country
- US
- tech
- MPC47-ARIN
- tech name
- Michelle Collins
- tech email
- michelle.collins@clevelandcliffs.com
- tech phone
- +1-513-425-5000
- tech kind
- person
- tech city
- Butler
- 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.
- 0.11%
- None here
- None here
- None here
- None here
- None here
- None here
- None here
- None here
- None here
- 0.11%
- 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 |
|---|---|---|---|---|
| 156.144.51.0/24 | United States | not found | 17 | 2026-10-02 |
| 156.144.99.0/24 | United States | not found | 17 | 2026-10-02 |
| 156.144.100.0/24 | United States | not found | 17 | 2026-10-02 |
| 156.144.108.0/24 | United States | not found | 17 | 2026-10-02 |
| 156.144.109.0/24 | United States | not found | 17 | 2026-10-02 |
| 156.144.208.0/24 | United States | not found | 17 | 2026-10-02 |
| 156.144.249.0/24 | United States | not found | 17 | 2026-10-02 |
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