Autonomous system
AS63174 LAS-COLO2
Unclassified ARIN
Summary
Blue Shield of California
business healthcare corporate
LAS-COLO2 is operated by Blue Shield of California.
What it's used for
- The address space carries corporate IT infrastructure, as indicated by the netname
BSCALand registrant "Blue Shield of California; IT-Network Engineering" across all prefixes. - The AS announces 1024 IPv4 addresses across 3 prefixes with 5 observed neighbours, a ratio consistent with an internal corporate estate rather than a transit or access provider.
- Traffic from this AS consists of internal office workers, web/API endpoints, and administrative systems for the health insurance company.
Notable
- All registrants agree with the announcer, consistently listing "Blue Shield of California; IT-Network Engineering" for the prefixes 165.253.64.0/23, 165.253.43.0/24, and 165.253.144.0/24.
- The address inventory is small and finely subdivided into three distinct blocks, reflecting site-by-site segmentation typical of a large enterprise network.
This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy. Source, and how to suggest an edit.
Interconnection
Peering at a glance
Internet exchanges
No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-21, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 3 prefixes · 1.02K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 3 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS63174- Registry name
- LAS-COLO2
- Registrant
- Blue Shield of California
- Abuse contact
- abuse@blueshieldca.com
- Registered
- 2014-08-28
- Last changed
- 2014-08-28
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 3 with no ROA
- ROAs
- 0 authorising AS63174
- ASPA
- no ASPA record
- IRR
- 67% registered · 2 of 3 announcements
- Route objects
- 4 naming AS63174
Reputation
Classification and threat
Unclassified Not in the curated lists. Most of the ~80,000 allocated ASNs are not.
Spamhaus DROP
Not on ASN-DROP The network as a whole is not listed.
No DROP prefixes None of its announced space is on the DROP prefix list.
Spamhaus DROP ("Don't Route Or Peer") lists space and networks run by, or hijacked for, spam and cybercrime operations: 442 networks and 1,779 prefixes, as published 2026-10-22. A short, high-confidence list, so a match is worth taking seriously, and absence from it says little on its own.
FBI IC3
No IC3 indicators Nothing from the FBI IC3 feed.
IC3 threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.
Elsewhere