| ASGC | Academica Sinica Grid Computing Center | 24167 | |
| ABQG | Albuquerquue Gigapop (UNM) | 40498 | |
| USLHCNET | American LHC Network | 1297 | |
| ANL | Argonne National Laboratory | 683 | |
| BNL | Brookhaven National Laboratory | 43 | |
| CANARIE-CA*NET | Canarie/CA*net | 6509 | |
| CERN | CERN European Laboratory for Particle Physics | 513 | |
| CENIC | Corporation for Education Network Initiatives | 2153 | |
| F-ROOT | F-ROOT ISC | 33071 | |
| FNAL | Fermi National Accelerator Laboratory | 3152 | |
| FRGP | Front Range GigaPop | 14041 | |
| GEANT/DANTE | GEANT IP Service | 20965 | |
| GSU | Georgia State University | 10490 | |
| GLORIAD | GLORIAD (Previously RBNET) | 20388 | |
| DREN | High Performance Computing Modernization Program | 668 | |
| ICCN | ICCN | 40387 | |
| INL | Idaho National Laboratory (formerly INEEL or INEL) | 10702 | |
| INDIANAGIGAPOP | INDIANAGIGAPOP | 19782 | |
| INTERNET2 | Internet2 | 11537 | |
| KREONET2 | KREONET2 | 17579 | |
| L-ROOT | L-Root | 20144 | |
| LBNL | Lawrence Berkeley National Laboratory - LBL | 16 | |
| LLNL | Lawrence Livermore National Laboratory | 45 | |
| LEVEL-3-NMS | Level-3-NMS | 65533 | |
| LANL | Los Alamos National Laboratory | 68 | |
| MIT | Massachusetts Institute of Technology | 3 | |
| MREN | Metropolitan Research and Education Network | 22335 | |
| NASA-AMES | NASA Ames | 297 | |
| NLR-PACKETNET | NLR PacketNet | 19401 | |
| NORTHWESTERN-UNIV | Northwestern University | 103 | |
| NREN | NREN | 24 | |
| ORNL | Oak Ridge National Laboratory | 50 | |
| OPENTRANSIT | OPENTRANSIT France Telecom | 5511 | |
| SNLA | Sandia National Laboratory Albuquerque | 377 | |
| SNLL | Sandia National Laboratory Livermore | 3562 | |
| STARTAP | Science,Technology & Research Transit Access Point | 10764 | |
| SLAC | Stanford Linear Accelerator Center | 3671 | |
| SCXY | Super Computing Conference | 14031 | |
| TANET-I2 | Taiwan Network | 7539 | |
| TECHNET | TechNet | 1829 | |
| ULTRALIGHT | UltraLight | 32361 | |
| UWISC | University of Wisconsin | 59 | |
| WCOMMAE | WCOM MAE | 6066 | |
| WISCNET | WiscNet | 2381 | |
| YAHOO | Yahoo | 10310 | |