Autonomous system
AS15791 YELLOWGROUP-AS
Unclassified APNIC
Summary
Ram Mobile Data (Netherlands)
mobile telecom business
A number from the earliest era that the routing archive did not see until fifteen years later.
What it's used for
- A mobile data company's network. One IPv4
/22announced from the Netherlands, no IPv6, one thousand and twenty-four addresses, through a single observed BGP neighbour.
Notable
- The number sits among others first seen at the turn of the century, but this one is absent from the routing archive until the middle of the following decade.
- The block's allocation date is the year before it was first seen announced, so the addresses and the announcement arrived together, long after the number itself.
- The AS handle names a group by a colour, which matches neither the netname nor the holder.
- The netname is a country code, three letters of the holder's name and that allocation date.
- One contact is the company name with the registry's abbreviation and the word for an administrator appended.
- Three addresses were queried for reverse DNS and none returned a name.
Interesting
- A low number appearing this late is a number that was issued, never announced, and then reused. The gap is where a company that had a number but no network sat, or where a number waited between owners.
- A thousand addresses behind one upstream, with a group brand in the handle and an operating company in the holder field, is a small subsidiary given exactly as much network as it needs.
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.
Transit providers
1 upstream, 0 downstream and 1 adjacent networks observed; most-used upstreams first.
| AS | Network | Paths seen |
|---|---|---|
| AS41696 | Ram Mobile Data (Netherlands) B.V. | 60 |
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 · 1.02K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| NL | Netherlands | 1 |
Registry
Allocation record
- Registry
- APNIC
- Handle
AS15791- Registry name
- YELLOWGROUP-AS
- Registrant
- Ram Mobile Data (Netherlands) B.V.
- Abuse contact
- abuse@ram.nl
- Registered
- 2015-08-31
- Last changed
- 2020-08-10
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 100% valid · 1 valid, 0 with no ROA
- ROAs
- 1 authorising AS15791
- ASPA
- no ASPA record
- IRR
- 100% registered · 1 of 1 announcements
- Route objects
- 2 naming AS15791
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