Autonomous system
AS15319 CSLNA-NJ-ASN
Unclassified ARIN
Summary
COSCO Shipping Lines (North America)
business enterprise infrastructure
The netname and every reverse name write the address in hexadecimal.
What it's used for
- A container shipping line's North American network. Two IPv4
/24prefixes announced from the United States, no IPv6, and two observed BGP neighbours.
Notable
- One netname is
CVNET-0X3FF7BD00, which is the block's first address written as a hexadecimal number with a prefix marking it as such. - The three answering addresses follow the same scheme: eight hexadecimal digits encoding the address, then a carrier's domain, so
63.247.189.64answers as3ff7bd40.cst.lightpath.net. - The other netname is
CSLNA-HOU-DR, the company's initials, a three letter city code, and two letters that read as disaster recovery. - The registrant appears under two corporate names, one of them a predecessor.
- Six addresses were queried for reverse DNS and three returned a name.
Interesting
- Hexadecimal addressing in reverse DNS is compact, unambiguous and unreadable to almost everyone. It comes from provisioning systems that treat an address as the integer it is rather than as four numbers, and it makes log analysis require a conversion step.
- Labelling a block as disaster recovery in the registry says which site the business fails over to. That is one of the more useful things an attacker can learn from a registry, and it is written in plain text.
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 2026-10-22, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 2 prefixes · 512 addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 2 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS15319- Registry name
- CSLNA-NJ-ASN
- Registrant
- COSCO Shipping Lines (North America) Inc.
- Abuse contact
- monitor@cosco-usa.com
- Registered
- 2019-01-11
- Last changed
- 2019-01-11
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 50% valid · 1 valid, 1 with no ROA
- ROAs
- 1 authorising AS15319
- ASPA
- no ASPA record
- IRR
- 100% registered · 2 of 2 announcements
- Route objects
- 2 naming AS15319
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 2026-10-23. 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