Autonomous system
AS36351 SOFTLAYER
Hosting ARIN
Summary
IBM Cloud (SoftLayer)
cloud hosting compute
IBM Cloud's infrastructure network (SOFTLAYER) — the former SoftLayer hosting provider that IBM acquired and rebranded as IBM Cloud.
What it's used for
- Hosting customer workloads on IBM Cloud: bare-metal and virtual servers, managed services, and enterprise infrastructure.
Notable
- An IP here means IBM Cloud is the host; the workload belongs to a customer.
- The
SOFTLAYERhandle persists from the acquired brand, which is why lookups show SoftLayer rather than IBM.
Interesting
- SoftLayer was known for automated bare-metal provisioning, a capability IBM folded into its enterprise cloud strategy.
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 54 exchanges in 18 countries, largest first.
| Exchange | Location | Their address |
|---|---|---|
| IX.br (PTT.br) São Paulo | São Paulo, Brazil | 187.16.220.213 |
| DE-CIX Frankfurt | Frankfurt, Germany | 80.81.194.167 |
| LINX LON1 | London, United Kingdom | 195.66.225.183 |
| AMS-IX Amsterdam | Amsterdam, Netherlands | 80.249.210.82 |
| Neutral Internet Exchange | Amsterdam, Netherlands | 193.239.117.47 |
| Equinix Internet Exchange Singapore | Singapore, Singapore | 27.111.228.69 |
| Milan Internet Exchange | Milan, Italy | 217.29.66.47 |
| Equinix Internet Exchange Ashburn | Ashburn, United States | 206.126.236.185 |
Transit providers
69 upstream, 13 downstream and 114 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 2026-10-10, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 760 prefixes · 3.63M addresses IPv6 72 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 832 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS36351- Registry name
- SOFTLAYER
- Registrant
- IBM Cloud
- Abuse contact
- abuse@softlayer.com
- Registered
- 2005-12-12
- Last changed
- 2025-02-28
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 3% valid · 13 valid, 394 with no ROA 7 RPKI-invalid
- ROAs
- 36 authorising AS36351
- ASPA
- no ASPA record
- IRR
- 99.3% registered · 411 of 414 announcements 1 other origin
- Route objects
- 1,072 naming AS36351
Reputation
Classification and threat
Hosting Datacenter or cloud provider. Addresses are servers, not people.
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: 431 networks and 1,775 prefixes, as published 2026-10-11. 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