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World Map

ASN Full List

Total ASNs: 118,434
AS231
Michigan State University
AS232
Merit Network Inc.
AS50237
ORG-TCoM1-RIPE
AS234
Nether.Net
AS235
Merit Network Inc.
AS236
Merit Network Inc.
AS237
Merit Network Inc.
AS22674
Southern Wine & Spirits of America, Inc.
AS238
Merit Network Inc.
AS239
University of Toronto
AS240
Air Force Systems Networking
AS241
Air Force Systems Networking
AS7455
Motorists Mutual Insurance Company
AS242
SUPSHIP
AS243
L3Harris Technologies, Inc.
AS244
United States Department of Defense (DoD)
AS245
Planning Research Corporation
AS61202
AS246
Air Force Systems Networking
AS247
Rome Air Development Center
AS248
IDDQD-AS
AS249
European Network
AS250
We are the . in .org
AS52467
Universidad de Ibague
AS251
AS251
AS252
Headquarters, USAISC
AS253
NTT America, Inc.
AS254
Attachmate Corp.
AS54772
Klein Independent School District
AS255
Air Force Systems Networking
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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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