ASN Lookup Tool
AS3300 BT

Powered By:
ASN Extended Info API & BGP Active Prefixes API
ASN Details
ASN
AS3300
Organisation
British Telecommunications PLC
Name
BT
Total IPv4 Addresses
230141
Total IPv4 Prefixes
144
Total IPv6 Prefixes
69
Total IPv4 Bogon Prefixes
0
Total IPv6 Bogon Prefixes
0
IPv4 Space Rank
#1,021 out of 76,855
Registry
Ripe
Registered Country
GB flag GB
Registered Country Name
United Kingdom of Great Britain and Northern Ireland (the)
Registered Date
2002-09-19
Registration Last Change
2023-11-16
Receiving From

The list of active Autonomous Systems (ASs) which send traffic to that ASN.

ASN
Organisation
HK flagThe Hong Kong Internet Exchange Limited
DE flagCore-Backbone GmbH
US flagWindstream Communications LLC
US flagSprint
US flagNTT America, Inc.
Showing 5 of 77
Transit To

The list of active Autonomous Systems (ASs) which receive traffic from that ASN.

 

ASN
Organisation
US flagSchlumberger Limited
US flagRADIANZ Americas, Inc.
US flagFACTORY MUTUAL INSURANCE COMPANY
HK flagRackspace.com Hong Kong Limited
US flagHCL AMERICA INC
Showing 5 of 25
IPv4 Active Prefixes

This provides the list of IPv4 address space routes/prefixes currently announced on Border Gateway Protocol (BGP).

Range From61.14.0.0
Range To61.14.0.255
Range From61.14.1.0
Range To61.14.1.255
Range From61.14.2.0
Range To61.14.3.255
Range From61.14.4.0
Range To61.14.5.255
Range From61.14.6.0
Range To61.14.6.255
Showing 5 of 144
Autonomous System (AS) is a network (or collection of networks) that are all managed and supervised by a single entity or organisation. This tool provides a comprehensive ownership and connectivity report for any given AS number.