asn.dev

Autonomous system

AS54174 BCBST

Unclassified ARIN

IPv4 addresses 768 3 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly US
Exchanges 0 recorded by PCH
Upstreams 2 0 downstream
Flagged prefixes 0 none

Summary

BlueCross BlueShield of Tennessee

United States of America · AI-generated

business healthcare enterprise

BCBST is the autonomous system for BlueCross BlueShield of Tennessee.

What it's used for

  • The address space carries internal corporate infrastructure, evidenced by netnames BLUECROSSBLUESHIELD, LVLT-BBT-29-67-98-187, and SPRINT-D01525 associated with registrants BLUE CROSS BLUE SHIELD and BlueCross BlueShield of Tennessee.
  • The AS announces 768 IPv4 addresses across 3 prefixes and maintains 2 observed neighbours, a ratio indicating a small, self-contained enterprise network rather than a transit or access provider.
  • Traffic from this AS consists of office workers and internal systems for the largest health benefit plan company in Tennessee, an independent not-for-profit organization.

Notable

  • Registrants align with the announcer, listing BLUE CROSS BLUE SHIELD and BlueCross BlueShield of Tennessee across the announced prefixes.
  • The address inventory is small and finely subdivided into three /24 blocks, consistent with site-by-site segmentation for a single corporate entity.

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

Full topology · Graph

Internet exchanges

No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.

Transit providers

2 upstream, 0 downstream and 2 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS32787Akamai Technologies, Inc.179
AS26827EPB Fiber Optics1

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-26, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.

Address space

Summary

Shape and geography

IPv4 3 prefixes · 768 addresses IPv6 0 prefixes

CountryNamePrefixes
USUnited States of America3

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
AS54174
Registry name
BCBST
Registrant
BlueCross BlueShield of Tennessee
Abuse contact
WNINetworkEngrTeam@bcbst.com
Registered
2011-10-27
Last changed
2012-03-02
Allocation
assigned

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 3 with no ROA
ROAs
0 authorising AS54174
ASPA
no ASPA record
IRR
100% registered · 3 of 3 announcements
Route objects
3 naming AS54174

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: 445 networks and 1,817 prefixes, as published 2026-10-27. 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

Cross-check