4 ms·

The post office has/had one

• xxpor 7y ago
  The DOD has like 5 or 6!
  • takeda 7y ago
    well since DoD started the whole Internet thingy that's not that surprising, but yeah they were extra wasteful.
    • ms4720 7y ago
      Loop back address, 127.0.0.1, is really a class A block, 127.0.0.0/8, that only uses 1 address
      • MertsA 7y ago
        You can use anything from that block as well and there are situations where you might want a different loopback address or multiple loopback addresses. /8 of the public address space is massively excessive though.