Home Prefix Lookup52.117.0.0/20

52.117.0.0/20 - IBM Cloud (AS36351)

IPv4ARINannouncedAS36351SOFTLAYER - IBM CloudNo ROA

CIDR

52.117.0.0/20

IP Version

IPv4

Addresses

Mask

/20 (255.255.240.0)

Country

🇺🇸 United States

City

Armonk

RIR

ARIN

Status

announced

Allocated

Announced BGP Routes

1 of 1 route

RPKI:

IRR:

Swipe sideways to see all columns →

Prefix	Origin AS	RPKI	IRR	Last Seen
52.117.0.0/20	AS36351 SOFTLAYER - IBM Cloud	No ROA	-	2026-10-11

Covering Prefix

1 less-specific announcement

Prefix	Origin AS	RPKI	IRR	Last Seen
52.117.0.0/18	AS36351 SOFTLAYER - IBM Cloud	No ROA	-	2026-10-11

Transfer History

Registry transfers of 52.117.0.0/20, blocks inside it, or blocks containing it.

52.116.0.0/15M&A · 2025-02-28
SoftLayer Technologies Inc.
🇺🇸 US ARIN
→
IBM Cloud
🇺🇸 US ARIN
52.116.0.0/15Transfer · 2015-04-27
E.I. du Pont de Nemours and Co., Inc.
🇺🇸 US ARIN
→
SoftLayer Technologies Inc.
🇺🇸 US ARIN

Date	Resource	From	To	Type
2025-02-28	52.116.0.0/15	SoftLayer Technologies Inc. 🇺🇸 US ARIN	IBM Cloud 🇺🇸 US ARIN	M&A
2015-04-27	52.116.0.0/15	E.I. du Pont de Nemours and Co., Inc. 🇺🇸 US ARIN	SoftLayer Technologies Inc. 🇺🇸 US ARIN	Transfer

Origin ASN

AS36351

SOFTLAYER - IBM Cloud

Related Prefixes

Covering prefix

52.117.0.0/18AS36351

More prefixes of AS36351

All prefixes of AS36351 →

Geolocation

Country🇺🇸United StatesUS

RegionNew York

CityArmonk

Coordinates41.1134, -73.7204 ↗

Learn more

RPKI and ROAs explainedWhat RPKI valid, invalid and no ROA mean
RPKI validatorCheck ROA coverage for any prefix or ASN
What is BGP?How prefixes are announced and routed
More-specific prefixesGlossary: covering and more-specific routes
IPv4 transfers in the ARIN regionWho bought and sold address space recently

API

Open

GEThttps://api.ipctl.io/v1/prefix/52.117.0.0/20

Returns prefix allocation, BGP routes, and more-specific subnets.

curl -s "https://api.ipctl.io/v1/prefix/52.117.0.0/20" | jq

External Links

RIPEstat