August 04, 1994
Route filtering policies are in place to restrict traffic between NSFNET-sponsored sites and networks in the following countries:
Code Country Name
KP North Korea
SY Syria Arab Republic
YU Yugoslavia (i.e. Serbia and Montenegro)
Some NSFNET-sponsored networks may have agreements with other network providers (e.g. CIX or ANS) to exchange traffic with networks in these countries. That traffic is not included in the reports found in the /nsfnet/statistics directory on nic.merit.edu.
No route filtering (except as stated above) is in place for any other networks announced on the ANSNet backbone. For a list of networks whose announcement is through ANS CO+RE, see the file /nsfnet/announced.networks/ans_core.now on nic.merit.edu.