Autonomous system
AS63311 20C
Unclassified ARIN
Summary
20C
business software enterprise
The AS handle 20C is held by 20C, LLC.
What it's used for
- The address space carries corporate infrastructure, evidenced by netnames such as
JC0,Grizz-157-97-97-0,OHG-NET-1, and20C. - The network announces 1024 IPv4 addresses and 3 IPv6 prefixes, with 8 observed neighbours. This ratio of modest address space to a small number of peering partners indicates an enterprise or business network rather than a transit provider.
- As a custom software architecture firm specializing in C++, C, Python, and Javascript, the traffic from this AS consists of office workers, development endpoints, and web/API services for the company's clients.
Notable
- Registrants for the announced prefixes include 20C, LLC and OHG Networks, LLC, with one prefix showing an unknown registrant.
- The address inventory consists of four distinct IPv4 /24 blocks and three IPv6 prefixes, representing a finely subdivided internal corporate estate.
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
Recorded at 3 exchanges in 2 countries, largest first.
| Exchange | Location | Their address |
|---|---|---|
| DE-CIX Frankfurt | Frankfurt, Germany | 80.81.195.24 |
| DE-CIX New York | New York, United States | 206.82.104.120 |
| United IX Chicago | Chicago, United States | 206.41.110.20 |
Transit providers
6 upstream, 0 downstream and 10 adjacent networks observed; most-used upstreams first.
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-18, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 4 prefixes · 1.02K addresses IPv6 3 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 7 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS63311- Registry name
- 20C
- Registrant
- 20C, LLC
- Abuse contact
- neteng@20c.com
- Registered
- 2014-11-17
- Last changed
- 2018-10-25
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 71% valid · 5 valid, 2 with no ROA
- ROAs
- 5 authorising AS63311
- ASPA
- no ASPA record
- IRR
- 100% registered · 7 of 7 announcements
- Route objects
- 10 naming AS63311
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: 443 networks and 1,784 prefixes, as published 2026-10-19. 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