Home Prefix Lookup81.18.208.0/20

81.18.208.0/20 - BGP Prefix

IPv4RIPE NCCallocated RPKI Valid

CIDR

81.18.208.0/20

IP Version

IPv4

Addresses

Mask

/20 (255.255.240.0)

Country

🇵🇱 Poland

City

Krakow (Czyżyny)

RIR

RIPE NCC

Status

allocated

Allocated

2004-01-05

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

4 more-specific announcements

Prefix	Origin AS	RPKI	IRR	Last Seen
81.18.208.0/22	AS9141 AS9141 P4 Sp. z o.o.	Valid	-	2026-10-11
81.18.212.0/22	AS9141 AS9141 P4 Sp. z o.o.	Valid	-	2026-10-11
81.18.216.0/22	AS9141 AS9141 P4 Sp. z o.o.	Valid	-	2026-10-11
81.18.220.0/22	AS9141 AS9141 P4 Sp. z o.o.	Valid	-	2026-10-11

More Specific Prefixes

Prefix	AS	Country	Status
81.18.208.0/26		🇵🇱PL	assigned
81.18.208.120/29		🇵🇱PL	assigned
81.18.208.128/26		🇵🇱PL	assigned
81.18.208.208/28		🇵🇱PL	assigned
81.18.208.248/29		🇵🇱PL	assigned
81.18.211.0/25		🇵🇱PL	assigned
81.18.211.192/27		🇵🇱PL	assigned
81.18.211.224/28		🇵🇱PL	assigned
81.18.211.240/29		🇵🇱PL	assigned
81.18.211.248/29		🇵🇱PL	assigned
81.18.212.0/24		🇵🇱PL	assigned
81.18.213.0/26		🇵🇱PL	assigned
81.18.213.64/27		🇵🇱PL	assigned
81.18.213.120/29		🇵🇱PL	assigned
81.18.213.128/26		🇵🇱PL	assigned
81.18.213.200/29		🇵🇱PL	assigned
81.18.213.208/28		🇵🇱PL	assigned
81.18.213.224/28		🇵🇱PL	assigned
81.18.213.240/29		🇵🇱PL	assigned
81.18.213.248/29		🇵🇱PL	assigned
81.18.214.96/28		🇵🇱PL	assigned
81.18.215.0/25		🇵🇱PL	assigned
81.18.215.128/25		🇵🇱PL	assigned
81.18.216.0/24		🇵🇱PL	assigned
81.18.218.32/28		🇵🇱PL	assigned
81.18.218.48/28		🇵🇱PL	assigned
81.18.218.64/26		🇵🇱PL	assigned
81.18.218.136/29		🇵🇱PL	assigned
81.18.218.144/31		🇵🇱PL	assigned
81.18.218.152/29		🇵🇱PL	assigned
81.18.218.160/27		🇵🇱PL	assigned
81.18.218.192/29		🇵🇱PL	assigned
81.18.218.216/29		🇵🇱PL	assigned
81.18.218.224/28		🇵🇱PL	assigned
81.18.218.240/29		🇵🇱PL	assigned
81.18.219.160/27		🇵🇱PL	assigned
81.18.220.0/27	AS204841	🇵🇱PL	assigned
81.18.220.64/27		🇵🇱PL	assigned
81.18.220.96/27		🇵🇱PL	assigned
81.18.220.128/27		🇵🇱PL	assigned
81.18.220.160/27		🇵🇱PL	assigned
81.18.220.192/29		🇵🇱PL	assigned
81.18.220.208/28		🇵🇱PL	assigned
81.18.221.2/31		🇵🇱PL	assigned
81.18.221.4/31		🇵🇱PL	assigned
81.18.221.6/32		🇵🇱PL	assigned
81.18.221.8/29		🇵🇱PL	assigned
81.18.221.24/29		🇵🇱PL	assigned
81.18.221.56/29		🇵🇱PL	assigned
81.18.221.128/25		🇵🇱PL	assigned
81.18.222.0/24		🇵🇱PL	assigned

Transfer History

Registry transfers of 81.18.208.0/20, blocks inside it, or blocks containing it.

81.18.208.0/20M&A · 2024-02-19
UPC Polska Sp. z o.o.
RIPE NCC
→
P4 Sp. z o.o.
RIPE NCC

Date	Resource	From	To	Type
2024-02-19	81.18.208.0/20	UPC Polska Sp. z o.o. RIPE NCC	P4 Sp. z o.o. RIPE NCC	M&A

Geolocation

Country🇵🇱PolandPL

RegionLesser Poland

CityKrakow (Czyżyny)

Coordinates50.0845, 19.9970 ↗

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/81.18.208.0/20

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

curl -s "https://api.ipctl.io/v1/prefix/81.18.208.0/20" | jq

External Links

RIPEstat