Cheapest 40GB Mobile Plans — Any Network

The cheapest 40GB mobile plan across all networks is LycaPlan S by lycamobile at $16.07/mo.

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20 Plans — sorted by price

Showing plans with 4060GB data across all networks. Postpaid and prepaid only.

Prices validated: 15 Aug 2026

CarrierPlanDataType5GeSIM$/moActions
lycamobile
LycaPlan S50GBPrepaidNoYes$16.07
Visit lycamobile
tangerine
50GB50GBPostpaidYesYes$18.00
Switch — $25
tangerine
50GB Mobile50GBPostpaidYesYes$18.00
Switch — $25
southern-phone
40GB 5G SIM Plan40GBPostpaidYes$29.00
Switch — $25
spintel
50GB50GBPostpaidYesYes$29.00
Switch — $25
kogan-mobile
Medium - Monthly Prepaid Plan40GBPrepaidNoYes$29.00
Visit kogan-mobile
yomojo
Essential42GBPrepaidNoYes$29.90
Visit yomojo
felix-mobile
50GB50GBPostpaidYesYes$30.00
Switch — $25
dodo
40GB40GBPostpaidYes$30.00
Switch — $25
moose-mobile
50GB Mobile Plan50GBPostpaidYesYes$32.80
Switch — $25
swoop
Swoop Mobile 50GB50GBPostpaidYesYes$32.90
Switch — $25
cmobile
Red $34.9040GBPostpaidNo$34.90
Switch — $25
cmobile
Blue $3540GBPostpaidYesYes$35.00
Switch — $25
tpg
Medium 50GB50GBPostpaidYesYes$35.00
Switch — $25
iinet
Medium Plan50GBPostpaidYesYes$35.00
Switch — $25
woolworths-mobile
Prepaid 30 Days 50GB50GBPrepaidYesYes$35.00
Visit woolworths-mobile
coles-mobile
$12 Monthly Plan45GBPrepaidYes$35.00
Visit coles-mobile
tangerine
50GB50GBPostpaidNoYes$36.00
Switch — $25
amaysim
42GB 28 Day SIM Plan42GBPrepaidYesYes$37.50
Visit amaysim
mate
Better Mates45GBPostpaidYesYes$38.00
Switch — $25

Bill Hero is an independent comparison service. We are paid by subscribers and concierge fees, not by carriers or retailers.

Frequently Asked Questions

What is the cheapest 40GB mobile plan across all networks?
LycaPlan S by lycamobile at $16.07/mo is currently the cheapest 40GB plan across all networks. Prices are updated daily.
Should I choose postpaid or prepaid for a 40GB plan?
Postpaid plans typically include handset financing options and are billed monthly. Prepaid plans are pay-as-you-go — better for flexibility and no credit checks. Both are shown in the table above.
How often are mobile plan prices updated?
Bill Hero checks mobile plan data daily. All plans shown were validated within the last 24 hours. See the "Prices validated" date above the table for the most recent check.
Can I switch mobile plans without changing my number?
Yes. Mobile number portability (MNP) lets you keep your number when switching carriers or networks. The process usually takes 1–2 business days.

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