Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Letter | IPv6 address | AS-number | Operator | Location #sites (global/local) | Software |
| --- | --- | --- | --- | --- | --- |
| A | 2001:503:ba3e::2:30 | AS19836 | Verisign | Distributed using anycast 8/0 | BIND |
| B | 2001:478:65::53 | N/A | USC - ISI | Marina Del Rey, California, U.S. 0/1 | BIND |
| C | N/A expected 2001:500:2::c but not yet in zone | AS2149 | Cogent Communications | Distributed using anycast 8/0 | BIND |
| D | 2001:500:2d::d | AS27 | University of Maryland | College Park, Maryland, U.S. 1/0 | BIND |
| E | N/A | AS297 | NASA | Distributed using anycast 1/11 | BIND |
| F | 2001:500:2f::f | AS3557 | Internet Systems Consortium | Distributed using anycast 5/51 | BIND 9 |
| G | N/A | AS5927 | Defense Information Systems Agency | Distributed using anycast 6/0 | BIND |
| H | 2001:500:1::803f:235 | AS13 | U.S. Army Research Lab | Aberdeen Proving Ground, Maryland, U.S. 2/0 | NSD |
| I | 2001:7fe::53 | AS29216 | Netnod | Distributed using anycast 43 | BIND |
| J | 2001:503:c27::2:30 | AS26415 | Verisign | Distributed using anycast 63/7 | BIND |
| K | 2001:7fd::1 | AS25152 | RIPE NCC | Distributed using anycast 5/12 | NSD |
| L | 2001:500:3::42 | AS20144 | ICANN | Distributed using anycast 146/0 | NSD |
| M | 2001:dc3::35 | AS7500 | WIDE Project | Distributed using anycast 5/1 | BIND |
Question:
Which letter has an operator of the Defense Information Systems Agency?
Answer:
G