Home Prefix Lookup194.77.136.0/21

194.77.136.0/21 - GTT BACKBONE GTT Communications (AS3257)

IPv4RIPE NCCallocatedAS3257GTT-BACKBONE GTT Communications Inc.No ROA

CIDR

194.77.136.0/21

IP Version

IPv4

Addresses

Mask

/21 (255.255.248.0)

Country

🇩🇪 Germany

City

Frankfurt am Main

RIR

RIPE NCC

Status

allocated

Allocated

1995-10-16

Announced BGP Routes

1 of 1 route

RPKI:

IRR:

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Prefix	Origin AS	RPKI	IRR	Last Seen
194.77.136.0/21	AS3257 GTT-BACKBONE GTT Communications Inc.	No ROA	RIPE	2026-10-13

IRR Route Objects

Origin	Registry	Maintainer	Modified
AS3257	RIPE	AS3257-ROUTE-MNT	2026-01-26

More Specific Prefixes

Prefix	Country	Status
194.77.138.144/29	🇩🇪DE	assigned
194.77.138.176/29	🇩🇪DE	assigned
194.77.141.0/25	🇩🇪DE	assigned

Transfer History

Registry transfers of 194.77.136.0/21, blocks inside it, or blocks containing it.

194.77.136.0/21Transfer · 2021-03-31
GTT GmbH
RIPE NCC
→
GTT Communications Inc.
RIPE NCC

Date	Resource	From	To	Type
2021-03-31	194.77.136.0/21	GTT GmbH RIPE NCC	GTT Communications Inc. RIPE NCC	Transfer

Origin ASN

AS3257

GTT-BACKBONE GTT Communications Inc.

Related Prefixes

More prefixes of AS3257

All prefixes of AS3257 →

Geolocation

Country🇩🇪GermanyDE

RegionHesse

CityFrankfurt am Main

Coordinates50.1109, 8.6821 ↗

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/194.77.136.0/21

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

curl -s "https://api.ipctl.io/v1/prefix/194.77.136.0/21" | jq

External Links

RIPEstat