Autonomous system profile

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

AS398374

Announcement unconfirmedARIN

Pro-Mark, LLC · NSL-ASN

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

Last active10/23/2026, 08:44:22Snapshot expired

View network topology RDAP registration

ASN: AS398374
Registration country: United States
Name: Pro-Mark, LLC
Abbreviation: NSL-ASN
Registration date: 5/11/2020, 10:55:13
Status: Announcement unconfirmed
RIR: ARIN

Network relationships and announced prefixes

ASN / prefix	Description / organization	ASN registration country	Observation window start	Latest observation	IPv4	IPv6	Status
AS13415Upstream · observed weight 278	FIRSTDIGITAL - FirstDigital Communications, LLCNetwork relationship data	United States	8/28/2019, 00:00:00	10/18/2026, 00:00:00	✓756	×	Currently observed
AS33660Upstream · observed weight 5	CMCS - Comcast Cable Communications, LLCNetwork relationship data	United States	8/28/2019, 00:00:00	10/18/2026, 00:00:00	✓12	×	Currently observed

Relationships are observed AS_PATH adjacencies. Coverage is partial; direction does not establish a commercial relationship.

Registration and sources

Organization: Pro-Mark, LLC
RIR: ARIN
Registration country: United States
Registration date: 5/11/2020, 10:55:13
Abuse contact: ar_sys@orbitonline.com

Snapshot trend

10/23/2026, 08:44:220 v40 v62 Upstream · 0 Uncertain

10/18/2026, 20:30:450 v40 v62 Upstream · 0 Uncertain

10/18/2026, 20:26:280 v40 v60 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: iana-rdap-asn-bootstrap · rir-rdap-asn