Home Prefix Lookup217.73.56.0/21

217.73.56.0/21 - K2 INT K2 Integration JSC (AS51219)

IPv4RIPE NCCallocatedAS51219K2_INT K2 Integration JSCNo ROA

CIDR

217.73.56.0/21

IP Version

IPv4

Addresses

Mask

/21 (255.255.248.0)

Country

🇷🇺 Russia

City

Moscow (Tsentralnyy administrativnyy okrug)

RIR

RIPE NCC

Status

allocated

Allocated

2011-08-17

Announced BGP Routes

1 of 1 route

RPKI:

IRR:

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Prefix	Origin AS	RPKI	IRR	Last Seen
217.73.56.0/21	AS51219 K2_INT K2 Integration JSC	No ROA	RIPE	2026-10-12

More-Specific Announcements

8 more-specific announcements

Prefix	Origin AS	RPKI	IRR	Last Seen
217.73.56.0/24	AS51219 K2_INT K2 Integration JSC	No ROA	-	2026-10-12
217.73.57.0/24	AS51219 K2_INT K2 Integration JSC	No ROA	-	2026-10-12
217.73.58.0/24	AS51219 K2_INT K2 Integration JSC	No ROA	-	2026-10-12
217.73.59.0/24	AS51219 K2_INT K2 Integration JSC	No ROA	-	2026-10-12
217.73.60.0/24	AS51219 K2_INT K2 Integration JSC	No ROA	-	2026-10-12
217.73.61.0/24	AS51219 K2_INT K2 Integration JSC	No ROA	-	2026-10-12
217.73.62.0/24	AS51219 K2_INT K2 Integration JSC	No ROA	-	2026-10-12
217.73.63.0/24	AS51219 K2_INT K2 Integration JSC	No ROA	-	2026-10-12

IRR Route Objects

Origin	Registry	Maintainer	Modified
AS51219	RIPE	AP55665-MNT	2025-05-31

Transfer History

Registry transfers of 217.73.56.0/21, blocks inside it, or blocks containing it.

217.73.56.0/21Transfer · 2024-10-16
Closed Joint Stock Company CROC incorporated
RIPE NCC
→
K2 Integration JSC
RIPE NCC
217.73.56.0/21Transfer · 2016-12-28
"Rustelekom" TK Limited Liability Company
RIPE NCC
→
Closed Joint Stock Company CROC incorporated
RIPE NCC

Date	Resource	From	To	Type
2024-10-16	217.73.56.0/21	Closed Joint Stock Company CROC incorporated RIPE NCC	K2 Integration JSC RIPE NCC	Transfer
2016-12-28	217.73.56.0/21	"Rustelekom" TK Limited Liability Company RIPE NCC	Closed Joint Stock Company CROC incorporated RIPE NCC	Transfer

Origin ASN

AS51219

K2_INT K2 Integration JSC

Related Prefixes

More prefixes of AS51219

All prefixes of AS51219 →

Geolocation

Country🇷🇺RussiaRU

RegionMoscow

CityMoscow (Tsentralnyy administrativnyy okrug)

Coordinates55.7352, 37.5691 ↗

Abuse Contact

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 RIPE NCC regionWho bought and sold address space recently

API

Open

GEThttps://api.ipctl.io/v1/prefix/217.73.56.0/21

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

curl -s "https://api.ipctl.io/v1/prefix/217.73.56.0/21" | jq

External Links

RIPEstat