Autonomous system
AS37905 BRASTEL-NET Brastel Co.,Ltd
Unclassified ARIN
Summary
Brastel Co.,Ltd
business japan small
BRASTEL-NET is the AS handle for Brastel Co.,Ltd.
What it's used for
- The address space is registered under the netname
BRASTEL-NET-CIDR-BLK-JPwith the Japan Network Information Center. - The AS announces 256 IPv4 addresses across 1 prefix (202.173.5.0/24) and maintains 2 observed neighbours.
- This small footprint with a low neighbour count indicates a limited internal corporate estate or a small-scale business network rather than a transit or large access provider.
Notable
- The registrant for the announced prefix is the Japan Network Information Center, which is the standard registry for Japanese IP space, while the AS holder is Brastel Co.,Ltd.
- The inventory consists of a single /24 block, representing a compact and self-contained address allocation.
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 2026-10-16, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 1 prefixes · 256 addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| JP | Japan | 1 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS37905- Registry name
- BRASTEL-NET
- Registered
- 2006-01-30
- Last changed
- 2017-04-10
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 1 with no ROA
- ROAs
- 0 authorising AS37905
- ASPA
- no ASPA record
- IRR
- 100% registered · 1 of 1 announcements
- Route objects
- 1 naming AS37905
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 1,783 prefixes, as published 2026-10-17. 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