206208 looking glass

AS36351 IBM Cloud 🇺🇸 US

Announcing 413 prefixes, seen at the RIS collectors.

IPv4 prefixes
340
3,756,032 (14,672 × /24)
IPv6 prefixes
73
1.3 × /32
Upstreams
18
transit providers observed
Peers
41
settlement-free adjacencies
Downstreams
13
transit customers observed
Customer cone
14
ASes reachable through it

Registry and operator data

AS number
AS36351
Name
IBM Cloud
Organisation
SoftLayer Technologies, Inc. (an IBM Company)
Country
🇺🇸 US
RIR
ARIN
Allocated
2005-12-12
Network type
Content
Traffic levels
1-5Tbps
Scope
North America
Peering policy
Selective
IRR as-set
AS-SOFTLAYER
Website
https://www.ibm.com/cloud
Looking glass
http://lg.softlayer.com
PeeringDB
net/1613
Exchanges
54
Facilities
40

RPKI coverage of this AS

Its own announcements, validated against the current ROA set

13 valid (3.1%) 7 invalid (1.7%) 393 no ROA (95.2%)

Announcement history

One point per day, recorded at each table import

08517125634109-1809-2510-0210-0910-1610-2310-29
IPv4 IPv6

Recorded changes

New prefixes and origin changes seen on the live stream

WhenChangePrefixOriginPath
2026-10-24 14:55:22Z origin change 199.166.36.0/23 AS36351 → AS16509 1763916509
2026-10-24 14:02:16Z origin change 199.166.36.0/23 AS16509 → AS36351 58057183636351
2026-10-23 06:30:36Z origin change 199.166.36.0/23 AS36351 → AS16509 295043939217416509
2026-10-22 15:22:23Z origin change 199.166.36.0/23 AS16509 → AS36351 443936407336351
2026-10-21 17:22:37Z origin change 199.166.36.0/23 AS36351 → AS16509 49134533566424646116509
2026-10-21 16:54:30Z origin change 199.166.36.0/23 AS16509 → AS36351 443936407336351
2026-10-21 15:41:28Z origin change 199.166.36.0/23 AS36351 → AS16509 6121869391650916509
2026-10-21 15:40:25Z origin change 199.166.36.0/23 AS16509 → AS36351 612186939949836351
2026-10-15 21:05:36Z origin change 199.166.36.0/23 AS36351 → AS16509 32884032772717416509
2026-10-15 21:03:50Z origin change 199.166.36.0/23 AS16509 → AS36351 2265236351