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World Map

ASN Full List

Total ASNs: 118,068
AS43
Brookhaven National Laboratory
AS44
Lawrence Livermore National Laboratory
AS131825
KCTC
AS45
Lawrence Livermore National Laboratory
AS46
Rutgers, The State University
AS47
University of Southern California
AS48
Navy Network Information Center (NNIC)
AS49
National Institute of Standards and Technology
AS263347
AS50
Oak Ridge National Laboratory
AS51
Headquarters, USAISC
AS52
University of California, Los Angeles
AS53
Northrop Grumman Corporation - Automation Sciences Laboratory
AS54
Headquarters, USAISC
AS55
University of Pennsylvania
AS56
United States Department of Defense (DoD)
AS57
University of Minnesota
AS58
Shared Services Canada
AS59
University of Wisconsin Madison
AS60
American Information Network
AS61
Air Force Systems Networking
AS62
CyrusOne LLC
AS63
Massachusetts Institute of Technology
AS64
The MITRE Corporation
AS65
Air Force Systems Networking
AS66
Headquarters, USAISC
AS67
Unisys Corporation
AS68
Los Alamos National Laboratory
AS69
University of Pennsylvania
AS70
National Library of Medicine
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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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