Home Prefix Lookup161.145.168.0/21

161.145.168.0/21 - (AS215757)

IPv4RIPE NCCallocatedAS215757No ROA

CIDR

161.145.168.0/21

IP Version

IPv4

Addresses

Mask

/21 (255.255.248.0)

Country

🇨🇿 Czechia

City

Prague

RIR

RIPE NCC

Status

allocated

Allocated

1992-10-22

Announced BGP Routes

0 of 0 routes

RPKI:

IRR:

Swipe sideways to see all columns →

Prefix	Origin AS	RPKI	IRR	Last Seen
This prefix is not announced as a whole. Parts of it are announced as more-specific prefixes, see below.

More-Specific Announcements

3 more-specific announcements

Prefix	Origin AS	RPKI	IRR	Last Seen
161.145.169.0/24	AS16509 AMAZON-02 - Amazon.com, Inc.	Valid	-	2026-10-12
161.145.170.0/24	AS16509 AMAZON-02 - Amazon.com, Inc.	Valid	-	2026-10-12
161.145.172.0/22	AS399678 CARRIER-AMER - Carrier Corporation	No ROA	-	2026-10-12

More Specific Prefixes

Prefix	AS	Country	Status
161.145.169.0/24	AS16509	🇮🇪IE	assigned
161.145.169.1/32		🇮🇪IE	assigned
161.145.169.2/31		🇮🇪IE	assigned
161.145.169.4/30		🇮🇪IE	assigned
161.145.169.8/29		🇮🇪IE	assigned
161.145.169.16/28		🇮🇪IE	assigned
161.145.169.32/27		🇮🇪IE	assigned
161.145.169.64/26		🇮🇪IE	assigned
161.145.169.128/25		🇮🇪IE	assigned
161.145.170.0/24	AS16509	🇩🇪DE	assigned

Transfer History

Registry transfers of 161.145.168.0/21, blocks inside it, or blocks containing it.

161.145.168.0/21inter-RIRTransfer · 2026-08-31
Carrier Corporation
🇺🇸 US ARIN
→
Carrier Refrigeration Operation Czech Republic s.r.o.
🇨🇿 CZ RIPE NCC
161.145.0.0/16M&A · 2021-06-02
United Technologies - Carrier
🇺🇸 US ARIN
→
Carrier Corporation
🇺🇸 US ARIN

Date	Resource	From	To	Type
2026-08-31	161.145.168.0/21inter-RIR	Carrier Corporation 🇺🇸 US ARIN	Carrier Refrigeration Operation Czech Republic s.r.o. 🇨🇿 CZ RIPE NCC	Transfer
2021-06-02	161.145.0.0/16	United Technologies - Carrier 🇺🇸 US ARIN	Carrier Corporation 🇺🇸 US ARIN	M&A

Origin ASN

AS215757

Geolocation

Country🇨🇿CzechiaCZ

RegionPrague

CityPrague

Coordinates50.0755, 14.4378 ↗

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/161.145.168.0/21

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

curl -s "https://api.ipctl.io/v1/prefix/161.145.168.0/21" | jq

External Links

RIPEstat