As Number Lookup
Autonomous System Lookup (AS / ASN / IP) | HackerTarget.com
The ASN search tool found here is for quick lookups of an IP address or Autonomous System Number (ASN). Using the Free version of the tool has a limit of 50 lookups a day; this includes use of the other IP Tools that HackerTarget.com has made available. IPv6 ASN Lookup An ASN can be made up of IPv4 and IPv6 prefixes.
https://hackertarget.com/as-ip-lookup/
ASN Lookup - Check AS WHOIS - IPLocation
To perform ASN WHOIS Lookup, follow these steps. Open the ASN WHOIS Lookup Tool. Enter the AS Number, or to get the AS Number of the IP. Perform the IP Lookup to get the AS Number of the given IP. After entering the AS Number, click on the "Find" button. The tool will perform the ASN lookup and display the results.
https://iplocation.io/asn-whois-lookup
Autonomous Systems (AS) lookup | BigDataCloud
Insights - ASN Lookup An Autonomous System (AS) is a network (or collection of networks) that are all managed and supervised by a single entity or organization. This tool provides a comprehensive ownership and connectivity report for any given AS number.
https://www.bigdatacloud.com/asn-lookup
ASN Tool - MxToolBox
AS Number or Company Name ABOUT Autonomous System Number Lookup This query takes either an Autonomous System Name (AS Name) or Autonomous System Numbers (AS Number) as input and returns the missing component. A partial AS Name query will return all AS Number matches for the partial name.
https://mxtoolbox.com/asn.aspxASN Lookup - Internet Numbers Search Engine
Search. Quickly look up updated information about specific ASN, Organization or registered IP addresses (IPv4 and IPv6) among other relevant data. We also offer a free and paid API access! Facebook AS32934 31.13.24.0 66.220.144.0/20 2620:0:1c00::/40.
https://asnlookup.com/
Autonomous System (AS) Numbers - Internet Assigned Numbers Authority
IANA allocates AS Numbers to Regional Internet Registries (RIRs). The RIRs further allocate or assign AS Numbers to network operators in line with RIR policies. The [ five RIRs] are: - [ AFRINIC ] - [ APNIC ] - [ ARIN ] - [ LACNIC ] - [ RIPE_NCC ] AS Numbers can be obtained from the registry in your region. Available Formats XML HTML Plain text
https://www.iana.org/assignments/as-numbers/as-numbers.xhtml
ASN Lookup - ASN WHOIS, Organization - DNS Checker
To perform the ASN Lookup, perform the following steps. Open the ASN Lookup tool. Enter the ASN. Or, if you know the IP address, perform the IP Lookup to get its ASN. Enter the ASN and click on the "Lookup ANS" button. The tool will perform the ASN Lookup and provides you the WHOIS information of provided ASN.
https://dnschecker.org/asn-whois-lookup.php
Autonomous System Numbers - American Registry for Internet Numbers
This format provides for 65,536 ASNs (0 to 65535). From these ASNs, the Internet Assigned Numbers Authority (IANA) reserved 1,023 of them (64512 to 65534) for private use. A 4-byte ASN is a 32-bit number. This format provides for 2 32 or 4,294,967,296 ASNs (0 to 4294967295).
https://www.arin.net/resources/guide/asn/
BGP AS number Lookup - Network Monitoring Tools
Home; Modules. Network Monitoring; Network Topology Mapping; Wireless Monitoring; Configuration Backup; Cisco SmartNet Reporting; NetFlow Collector; Syslog and SIEM Collector
https://www.nectus5.com/bgp-number-lookup/Hurricane Electric BGP Toolkit
Home. Welcome to the Hurricane Electric BGP Toolkit. You are visiting from 157.55.39.189 (msnbot-157-55-39-189.search.msn.com) Announced as 157.55.0.0/16 (Microsoft Corporation) Your ISP is AS8075 (Microsoft Corporation)
https://bgp.he.net/
What is an AS Number? — RIPE Network Coordination Centre
What is an AS Number? An Autonomous System (AS) is a group of IP networks run by one or more network operators with a single, clearly defined routing policy. When exchanging exterior routing information, each AS is identified by a unique number: the Autonomous System Number ( ASN ). An AS is also sometimes referred to as a routing domain.
https://www.ripe.net/manage-ips-and-asns/as-numbers