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World Map

ASN Full List

Total ASNs: 118,432
AS98
The Rockefeller University
AS99
Intel Corporation
AS100
FMC Central Engineering Laboratories
AS101
University of Washington
AS102
U.S. National Science Foundation
AS103
Northwestern University
AS104
University of Colorado at Boulder
AS105
Gould Computer Systems Division
AS131724
Jawa Tengah
AS106
General Dynamics Mission Systems, Inc.
AS108
Xerox Corporation
AS109
CISCO SYSTEMS, INC.
AS19690
Hyatt Corporation
AS110
Xerox Advanced Information Technology
AS112
DNS-OARC
AS113
Space Communications Company
AS2727
Electric Plant Board of the City of Glasgow, Kentucky
AS114
NTT America, Inc.
AS115
United States Department of Defense (DoD)
AS116
Ericsson Inc.
AS214564
ORG-BM390-RIPE
AS117
Lockheed Austin Division
AS118
United States Department of Defense (DoD)
AS119
American Mathematical Society
AS120
The MITRE Corporation
AS4475
Huntington Travel
AS121
United States Department of Defense (DoD)
AS122
UPMC
AS123
Air Force Systems Networking
AS124
United States Department of Defense (DoD)
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Tools

Subnetting
  • IPv4 Subnet Calculator
  • IPv6 Subnet Calculator
  • Address Count
  • IPv4 CIDR Split
  • IPv6 CIDR Split
CIDR
  • CIDR ↔ Netmask
  • Wildcard Mask
  • IPv4 Range ↔ CIDR
  • IPv6 Range ↔ CIDR
  • Aggregator
  • Difference
  • Overlap
  • Contains
  • Gaps
  • Next Available
IP
  • IPv6 Expand/Compress
  • IPv4 Representations
  • IPv4 ↔ IPv6 (mapped)
  • IPv6 NAT64
  • IPv6 6to4
  • IPv6 Teredo
  • Solicited-Node
  • IPv6 Zone ID
  • MAC ↔ EUI-64
  • ULA Generator
  • Nth IP
  • IP Distance
  • Random IP
  • Enumerate
  • IP Regex
  • Bogon / Reserved IP Checker
DNS
  • DNS Lookup
  • Reverse DNS & FCrDNS
  • WHOIS Lookup
  • PTR Generator
  • TTL Calculator
  • Record Validator
  • CAA Validator
  • SPF / DKIM / DMARC Analyzer
  • EDNS Size
  • Label Normalizer

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