Autonomous system
AS18849 RICHESIN-ENG
Unclassified ARIN
Summary
Richesin Engineering
business engineering us
The AS handle RICHESIN-ENG is held by Richesin Engineering, LLC.
What it's used for
- The address space is registered under netnames
RICHESIN-238andRICHESIN-ENGINEERING, indicating a corporate network for an engineering firm. - The AS announces 768 IPv4 addresses across 2 prefixes and 1 IPv6 prefix, while maintaining 12 observed neighbours. This ratio of modest address space to a moderate number of peering partners suggests a business network with specific connectivity requirements rather than a large-scale transit or residential provider.
Notable
- The RDAP registrants for both announced IPv4 prefixes are listed as Richesin Engineering, LLC, which aligns perfectly with the AS holder.
- The address inventory consists of two distinct IPv4 blocks, 74.85.238.0/23 and 72.19.11.0/24, alongside a single /32 IPv6 prefix.
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 1 exchange in 1 country, largest first.
| Exchange | Location | Their address |
|---|---|---|
| Seattle Internet Exchange | Seattle, United States | 2001:504:16::49a1 |
Transit providers
9 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 2 prefixes · 768 addresses IPv6 1 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 3 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS18849- Registry name
- RICHESIN-ENG
- Registrant
- Richesin Engineering, LLC
- Abuse contact
- josh@richesinengineering.com
- Registered
- 2024-03-19
- Last changed
- 2024-03-19
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 67% valid · 2 valid, 1 with no ROA
- ROAs
- 2 authorising AS18849
- ASPA
- no ASPA record
- IRR
- 67% registered · 2 of 3 announcements
- Route objects
- 4 naming AS18849
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 1,784 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