asn.dev

Autonomous system

AS13652 HORIZON-BLUE-CROSS-BLUE-SHIELD-OF-NJ - HORIZON BLUE CROSS BLUE SHIELD OF NJ

Unclassified ARIN

IPv4 addresses 2.30K 7 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

Horizon Blue Cross Blue Shield of New Jersey

United States · AI-generated

enterprise business infrastructure

Seven prefixes carry six different netnames, one of which spells the block's own address in hexadecimal.

What it's used for

  • A health insurer's network. 2,304 addresses across seven IPv4 prefixes, two observed BGP neighbours, and no IPv6 announced.

Notable

  • 108.179.9.0/24 is netname CVNET-6CB30900, which is that block's address written in hexadecimal.
  • Three addresses in it answer as 6cb3940.cst.lightpath.net and similar, the same encoding per address, except the third part's leading zero is dropped.
  • 67.98.95.0/24 is netname LVLT-HORIZO-44-67-98-95: a provider prefix, the company name cut off mid-word, then the address.
  • 12.149.40.0/24 is netname HORIZON334-40, and 12.181.129.0/24 is netname ATT.
  • Two blocks share netname HORIZONBLUE, and one registry lookup failed.

Interesting

  • The hexadecimal encoding is a cable operator's convention, and it survives here on space a hospital insurer runs, so the address is legible to a machine and opaque to a person.
  • The netname keeps the leading zero and the reverse record drops it, which means two systems at the same provider encode the same address to different lengths.
  • Six netnames for seven blocks records six separate purchases from four suppliers, with the company's name spelled differently in nearly every one.

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
AS7018AT&T Enterprises, LLC312
AS54004Cablevision Lightpath LLC222

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-11-11, 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 7 prefixes · 2.30K addresses IPv6 0 prefixes

CountryNamePrefixes
USUnited States of America7

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
AS13652
Registry name
HORIZON-BLUE-CROSS-BLUE-SHIELD-OF-NJ
Registrant
HORIZON BLUE CROSS BLUE SHIELD OF NJ
Abuse contact
abuse@horizonblue.com
Registered
2016-05-18
Last changed
2016-05-18
Allocation
assigned

Routing security

RPKI and IRR

Full detail
RPKI
67% valid · 6 valid, 3 with no ROA
ROAs
2 authorising AS13652
ASPA
no ASPA record
IRR
11% registered · 1 of 9 announcements
Route objects
1 naming AS13652

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: 453 networks and 1,846 prefixes, as published 2026-11-11. 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