Autonomous system profile

Review registration details, announced prefixes, network relationships and historical snapshots.

AS19512

Announcement observedARIN

LYONDELL - Lyondell Chemical Company · LYONDELL

This profile is assembled from CHA.LA's normalized registration, routing and observation snapshots.

Last active10/16/2026, 00:00:00Snapshot expired

View network topology RDAP registration

ASN: AS19512
Registration country: United States
Name: LYONDELL - Lyondell Chemical Company
Abbreviation: LYONDELL
Registration date: 1/16/2001, 05:00:00
Status: Announcement observed
RIR: ARIN

Network relationships and announced prefixes

ASN / prefix	Description / organization	Geographic scope	First seen	Last active	IPv4	IPv6	Status
161.16.0.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/16/2026, 16:00:00	10/25/2026, 08:00:00	✓	×	Currently valid
161.16.1.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/16/2026, 16:00:00	10/25/2026, 08:00:00	✓	×	Currently valid
165.249.0.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/16/2026, 16:00:00	10/25/2026, 08:00:00	✓	×	Currently valid
165.249.1.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/16/2026, 16:00:00	10/25/2026, 08:00:00	✓	×	Currently valid
192.84.168.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/16/2026, 16:00:00	10/25/2026, 08:00:00	✓	×	Currently valid
199.102.0.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/16/2026, 16:00:00	10/25/2026, 08:00:00	✓	×	Currently valid
199.102.1.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/16/2026, 16:00:00	10/25/2026, 08:00:00	✓	×	Currently valid
199.102.2.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/16/2026, 16:00:00	10/25/2026, 08:00:00	✓	×	Currently valid
199.102.3.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/16/2026, 16:00:00	10/25/2026, 08:00:00	✓	×	Currently valid
199.102.4.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/16/2026, 16:00:00	10/25/2026, 08:00:00	✓	×	Currently valid
199.102.5.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/16/2026, 16:00:00	10/25/2026, 08:00:00	✓	×	Currently valid
199.102.6.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/16/2026, 16:00:00	10/25/2026, 08:00:00	✓	×	Currently valid
199.102.7.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/16/2026, 16:00:00	10/25/2026, 08:00:00	✓	×	Currently valid
199.91.10.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/16/2026, 16:00:00	10/25/2026, 08:00:00	✓	×	Currently valid
199.91.11.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/16/2026, 16:00:00	10/25/2026, 08:00:00	✓	×	Currently valid
199.91.13.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/16/2026, 16:00:00	10/25/2026, 08:00:00	✓	×	Currently valid
199.91.14.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/16/2026, 16:00:00	10/25/2026, 08:00:00	✓	×	Currently valid
199.91.9.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/16/2026, 16:00:00	10/25/2026, 08:00:00	✓	×	Currently valid

BGP prefixes have no geographic country; the column is marked not applicable.

Registration and sources

Organization: LYONDELL - Lyondell Chemical Company
RIR: ARIN
Registration country: United States
Registration date: 1/16/2001, 05:00:00
Abuse contact: Robert.Humlicek@lyondellbasell.com

Snapshot trend

10/1/2026, 02:12:4218 v40 v69 Upstream · 0 Uncertain

ASN route snapshotThis page reads collected ASN, prefix, relationship and history data. External interfaces are used for initial collection and scheduled refreshes.Source keys: cha-la-external-routing · rir-rdap-asn · iana-rdap-asn-bootstrap · cha-la-bgp-observations