[DuncanWaring]

To the best of my knowledge, no KC-135 has wingtip refueling pods; they can have a drogue attachment mounted on the refueling boom prior to flight.

Wingtip refueling pods are only on the KC-130 and the KC-767/KC-46.

[Oztrich Boy]

To the best of my knowledge, no KC-135 has wingtip refueling pods; they can have a drogue attachment mounted on the refueling boom prior to flight.

Wingtip refueling pods are only on the KC-130 and the KC-767/KC-46.

No but have been a lot of modded 707 refuelers with wingtip pods

Italian, Columbian KC-767s also have tip pods.

There are no KC-46s. There are however KC-30s (which the original photo is of), but they, like KC=130s, have pods better describes as "outer-wing"

[Yo-Yo]

To the best of my knowledge, no KC-135 has wingtip refueling pods;

Some KC-135Rs have the ability to use wingtip refueling pods.