Autonomous system
AS4128 RGNET-DFW RGnet Dallas Equinix
Unclassified RIPE
Summary
RGnet
research legacy
RGNET-DFW is one of the autonomous systems of RGnet, the small network run by internet routing researcher Randy Bush. The name marks its home: an Equinix facility in Dallas.
What it's used for
- A tiny, deliberately minimal network. It announces a single IPv4
/24and is operated as one of RGnet's site presences rather than as a commercial service. - RGnet's networks are long associated with internet routing and measurement work, so this address space behaves more like a research and operations vantage point than like a customer network.
Notable
- The resource is held as a RIPE legacy object under RGnet OÜ, an unusual arrangement for a network whose routing presence is in the United States.
- RGnet operates more than one low ASN, and they are recognisable in routing data by how little they announce compared with their prominence in the operator and standards community.
Interesting
- Networks like this are why the internet's measurement infrastructure works at all: a handful of small, well-run ASNs held by researchers provide the vantage points that routing studies depend on.
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 |
|---|---|---|
| Equinix Internet Exchange Dallas | Dallas, United States | 206.223.118.94 |
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 1 prefixes · 256 addresses IPv6 1 prefixes
| Country | Name | Prefixes |
|---|---|---|
| EE | Estonia | 2 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS4128- Registry name
- RGNET-DFW
- Registrant
- MAINT-RGNET
- Abuse contact
- blackhole@bogus.com
- Registered
- 1970-01-01
- Last changed
- 2019-06-19
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 100% valid · 2 valid, 0 with no ROA
- ROAs
- 2 authorising AS4128
- ASPA
- no ASPA record
- IRR
- 100% registered · 2 of 2 announcements
- Route objects
- 2 naming AS4128
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