Home Prefix Lookup91.81.0.0/17

91.81.0.0/17 - VODAFONE IT ASN Fastweb SpA (AS30722)

IPv4RIPE NCCannouncedAS30722VODAFONE-IT-ASN Fastweb SpA RPKI Valid

CIDR

91.81.0.0/17

IP Version

IPv4

Addresses

32.7K

Mask

/17 (255.255.128.0)

Country

🇮🇹 Italy

City

Ivrea

RIR

RIPE NCC

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
91.81.0.0/17	AS30722 VODAFONE-IT-ASN Fastweb SpA	Valid	RIPE	2026-10-11

More-Specific Announcements

2 more-specific announcements

Prefix	Origin AS	RPKI	IRR	Last Seen
91.81.64.0/19	AS30722 VODAFONE-IT-ASN Fastweb SpA	Valid	-	2026-10-11
91.81.96.0/19	AS30722 VODAFONE-IT-ASN Fastweb SpA	Valid	-	2026-10-11

RPKI ROAs

Prefix	Origin	Max Length	Trust Anchor
91.81.0.0/17	AS30722	/19	ripe

IRR Route Objects

Origin	Registry	Maintainer	Modified
AS30722	RIPE	VODAFONE-IT-MNT	2009-06-17

More Specific Prefixes

Prefix	AS	Country	Status
91.81.0.0/18		🇮🇹IT	assigned
91.81.64.0/19	AS30722	🇮🇹IT	assigned
91.81.96.0/22		🇮🇹IT	assigned
91.81.100.0/24		🇮🇹IT	assigned
91.81.101.0/25		🇮🇹IT	assigned
91.81.101.128/26		🇮🇹IT	assigned
91.81.101.192/28		🇮🇹IT	assigned
91.81.101.208/28		🇮🇹IT	assigned
91.81.101.224/27		🇮🇹IT	assigned
91.81.102.0/23		🇮🇹IT	assigned
91.81.104.0/21		🇮🇹IT	assigned
91.81.112.0/22		🇮🇹IT	assigned
91.81.116.0/23		🇮🇹IT	assigned
91.81.118.0/25		🇮🇹IT	assigned
91.81.118.128/26		🇮🇹IT	assigned
91.81.118.192/28		🇮🇹IT	assigned
91.81.118.208/28		🇮🇹IT	assigned
91.81.118.224/27		🇮🇹IT	assigned
91.81.119.0/24		🇮🇹IT	assigned
91.81.120.0/23		🇮🇹IT	assigned
91.81.122.0/25		🇮🇹IT	assigned
91.81.122.128/28		🇮🇹IT	assigned
91.81.122.144/28		🇮🇹IT	assigned
91.81.122.160/27		🇮🇹IT	assigned
91.81.122.192/26		🇮🇹IT	assigned
91.81.123.0/24		🇮🇹IT	assigned
91.81.124.0/22		🇮🇹IT	assigned

Transfer History

Registry transfers of 91.81.0.0/17, blocks inside it, or blocks containing it.

91.80.0.0/15M&A · 2026-01-29
Vodafone Italia S.p.A.
🇮🇹 IT RIPE NCC
→
Fastweb SpA
🇮🇹 IT RIPE NCC

Date	Resource	From	To	Type
2026-01-29	91.80.0.0/15	Vodafone Italia S.p.A. 🇮🇹 IT RIPE NCC	Fastweb SpA 🇮🇹 IT RIPE NCC	M&A

Origin ASN

AS30722

VODAFONE-IT-ASN Fastweb SpA

Related Prefixes

More prefixes of AS30722

All prefixes of AS30722 →

Geolocation

Country🇮🇹ItalyIT

RegionPiedmont

CityIvrea

Coordinates45.4581, 7.8711 ↗

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/91.81.0.0/17

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

curl -s "https://api.ipctl.io/v1/prefix/91.81.0.0/17" | jq

External Links

RIPEstat