virt-who Assigns Content Host Names With Extra Naming

Is there an easy explanation why my Content Host names are prefaced with 'virt-who-' and appended with '-1'?
I have a case open, but nothing beats the community's experience and (sometimes quicker) response.

# hammer content-host list --organization MLB_BNSF
-------------------------------------|------------------------------------------|-------------------
ID                                   | NAME                                     | INSTALLABLE ERRATA
-------------------------------------|------------------------------------------|-------------------
671377ad-e0a6-4c34-8c89-06d105a4a87b | virt-who-mlbbnci01.tms.ad.trans.ge.com-1 |
6c15ad8e-02b2-49a5-9791-7f1b6597219d | virt-who-mlbbnci02.tms.ad.trans.ge.com-1 |
59e3f1b7-b90f-4e3e-94df-063904e00032 | virt-who-mlbbnci03.tms.ad.trans.ge.com-1 |
eeb6b080-80b8-47d1-85e5-fd5298ac5704 | virt-who-mlbbnci04.tms.ad.trans.ge.com-1 |
47a1b8d6-0ab9-454a-8e7a-9ab596978321 | virt-who-mlbbnci05.tms.ad.trans.ge.com-1 |
24f3fb85-754d-4c9a-a16d-2b5b1a175d25 | virt-who-mlbbnci06.tms.ad.trans.ge.com-1 |
6effb0cc-c374-4514-9e15-6f51333d08ac | virt-who-mlbbnci07.tms.ad.trans.ge.com-1 |
9fcedecb-9b8f-4f41-82e2-cde42cd2ede1 | virt-who-mlbbnci08.tms.ad.trans.ge.com-1 |
23c5e21a-f731-4326-9fd9-c7424a0a0176 | virt-who-si-app-01.tms.ad.trans.ge.com-1 |
28f839b9-0ccd-476f-9f9b-d8c62c9d7b74 | virt-who-si-app-02.tms.ad.trans.ge.com-1 |
ac3c257f-6d5a-4d1a-a828-5a4f8d879084 | virt-who-si-app-03.tms.ad.trans.ge.com-1 |
9fea4669-ad7f-4559-8a50-119fc5e2044a | virt-who-si-mgt-01.tms.ad.trans.ge.com-1 |
6d1fb9b6-01ea-4206-98e7-cdc09bfc84d7 | virt-who-si-mgt-02.tms.ad.trans.ge.com-1 |
a43012d0-5781-4f46-9105-adb0b3007677 | virt-who-si-mgt-03.tms.ad.trans.ge.com-1 |
ec711a90-937b-4155-be4d-656b4f3dff68 | virt-who-si-ora-01.tms.ad.trans.ge.com-1 |
7266663f-fc8f-424d-8fd8-81c4a514a7a9 | virt-who-si-ora-02.tms.ad.trans.ge.com-1 |
c87d99e6-5461-479d-a872-9be57b072e4f | virt-who-si-ora-03.tms.ad.trans.ge.com-1 |
f688505c-8ebd-4dcf-8afe-062869e27caf | virt-who-si-rmp-01.tms.ad.trans.ge.com-1 |
f520d39d-cab0-471f-9e25-4e4e01ea5b69 | virt-who-si-rmp-02.tms.ad.trans.ge.com-1 |
1fc8171f-31e8-4f53-8b03-4feec0be821e | virt-who-si-rmp-03.tms.ad.trans.ge.com-1 |
6c052434-3cbe-4390-bcf8-183b4ae2745c | virt-who-si-rmp-04.tms.ad.trans.ge.com-1 |
-------------------------------------|------------------------------------------|-------------------

Andy