Home Prefix Lookup166.49.128.0/17

166.49.128.0/17 - BT British Telecommunications Limited (AS5400)

IPv4RIPE NCCassignedAS5400BT British Telecommunications Limited RPKI Valid

CIDR

166.49.128.0/17

IP Version

IPv4

Addresses

32.7K

Mask

/17 (255.255.128.0)

Country

🇨🇭 Switzerland

City

Zurich

RIR

RIPE NCC

Status

assigned

Allocated

1993-03-24

Announced BGP Routes

1 of 1 route

RPKI:

IRR:

Swipe sideways to see all columns →

Prefix	Origin AS	RPKI	IRR	Last Seen
166.49.128.0/17	AS5400 BT British Telecommunications Limited	Valid	RIPE	2026-10-11

RPKI ROAs

Prefix	Origin	Max Length	Trust Anchor
166.49.128.0/17	AS5400	/17	ripe

IRR Route Objects

Origin	Registry	Maintainer	Modified
AS5400	RIPE	CIP-MNT	2007-01-04

More Specific Prefixes

Prefix	Country	Status
166.49.128.0/25	🇨🇭CH	assigned
166.49.128.104/29	🇨🇭CH	assigned
166.49.129.0/25	🇮🇹IT	assigned
166.49.130.0/25	🇫🇷FR	assigned
166.49.131.128/25	🇳🇱NL	assigned
166.49.132.0/25	🇳🇱NL	assigned
166.49.133.0/24	🇧🇪BE	assigned
166.49.134.0/25	🇧🇪BE	assigned
166.49.134.128/25	🇩🇪DE	assigned
166.49.137.128/25	🇩🇪DE	assigned
166.49.138.0/25	🇪🇸ES	assigned
166.49.138.100/31	🇵🇹PT	assigned
166.49.138.232/29	🇪🇸ES	assigned
166.49.139.0/25	🇫🇷FR	assigned
166.49.139.128/25	🇮🇹IT	assigned
166.49.140.0/25	🇫🇷FR	assigned
166.49.140.128/25	🇮🇹IT	assigned
166.49.142.0/24	🇮🇹IT	assigned
166.49.145.128/25	🇩🇪DE	assigned
166.49.146.0/25	🇫🇷FR	assigned
166.49.146.128/25	🇫🇷FR	assigned
166.49.147.24/29	🇪🇸ES	assigned
166.49.147.128/25	🇩🇪DE	assigned
166.49.148.64/26	🇫🇷FR	assigned
166.49.148.128/25	🇩🇪DE	assigned
166.49.149.0/25	🇮🇪IE	assigned
166.49.149.128/25	🇳🇱NL	assigned
166.49.150.0/25	🇫🇷FR	assigned
166.49.150.128/25	🇮🇪IE	assigned
166.49.151.0/25	🇨🇿CZ	assigned
166.49.153.128/25	🇳🇱NL	assigned
166.49.154.0/24	🇩🇪DE	assigned
166.49.155.0/25	🇩🇪DE	assigned
166.49.155.128/25	🇭🇺HU	assigned
166.49.155.142/31	🇸🇰SK	assigned
166.49.157.0/25	🇳🇱NL	assigned
166.49.157.128/25	🇧🇪BE	assigned
166.49.159.0/25	🇳🇱NL	assigned
166.49.159.128/25	🇩🇪DE	assigned
166.49.160.128/25	🇩🇰DK	assigned
166.49.160.230/31	🇸🇪SE	assigned
166.49.161.0/24	🇭🇺HU	assigned
166.49.161.2/31	🇸🇰SK	assigned
166.49.162.128/25	🇫🇷FR	assigned
166.49.167.0/25	🇨🇭CH	assigned
166.49.168.0/25	🇩🇰DK	assigned
166.49.173.128/25	🇨🇭CH	assigned
166.49.183.0/24	🇨🇿CZ	assigned
166.49.189.0/25	🇫🇮FI	assigned
166.49.189.128/25	🇫🇷FR	assigned
166.49.191.0/25	🇫🇷FR	assigned
166.49.192.0/25	🇨🇭CH	assigned
166.49.192.128/25	🇩🇪DE	assigned
166.49.193.128/25	🇩🇪DE	assigned
166.49.196.0/24	🇧🇪BE	assigned
166.49.197.0/25	🇨🇭CH	assigned
166.49.198.0/25	🇮🇪IE	assigned
166.49.198.128/25	🇮🇪IE	assigned
166.49.210.0/24	🇳🇱NL	assigned
166.49.211.0/25	🇮🇹IT	assigned
166.49.212.0/25	🇩🇪DE	assigned
166.49.215.0/25	🇩🇪DE	assigned
166.49.215.128/25	🇦🇹AT	assigned
166.49.216.0/24	🇫🇷FR	assigned
166.49.217.128/25	🇩🇪DE	assigned
166.49.219.128/25	🇩🇪DE	assigned
166.49.220.0/25	🇧🇪BE	assigned
166.49.221.0/24	🇳🇱NL	assigned
166.49.222.0/25	🇩🇪DE	assigned
166.49.222.128/25	🇦🇹AT	assigned
166.49.223.128/25	🇩🇪DE	assigned
166.49.224.128/25	🇧🇪BE	assigned
166.49.225.128/25	🇫🇷FR	assigned
166.49.226.128/25	🇩🇪DE	assigned
166.49.227.128/25	🇪🇸ES	assigned
166.49.227.172/31	🇵🇹PT	assigned
166.49.228.128/25	🇩🇪DE	assigned
166.49.229.0/25	🇫🇷FR	assigned
166.49.230.0/24	🇵🇱PL	assigned
166.49.233.0/25	🇮🇹IT	assigned
166.49.233.128/25	🇩🇪DE	assigned
166.49.234.0/25	🇫🇷FR	assigned
166.49.234.128/25	🇩🇪DE	assigned
166.49.235.0/25	🇧🇪BE	assigned
166.49.238.0/24	🇩🇪DE	assigned
166.49.238.0/25	🇩🇪DE	assigned
166.49.239.0/25	🇫🇷FR	assigned
166.49.239.72/29	🇨🇭CH	assigned
166.49.239.128/25	🇳🇱NL	assigned
166.49.242.0/25	🇮🇹IT	assigned
166.49.242.128/25	🇮🇹IT	assigned
166.49.243.0/25	🇮🇹IT	assigned
166.49.243.128/25	🇮🇹IT	assigned
166.49.251.0/25	🇨🇭CH	assigned
166.49.251.128/25	🇩🇪DE	assigned

Origin ASN

AS5400

BT British Telecommunications Limited

Related Prefixes

More prefixes of AS5400

All prefixes of AS5400 →

Geolocation

Country🇨🇭SwitzerlandCH

RegionZurich

CityZurich

Coordinates47.3860, 8.4794 ↗

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/166.49.128.0/17

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

curl -s "https://api.ipctl.io/v1/prefix/166.49.128.0/17" | jq

External Links

RIPEstat