The KPNQwest and Ebone networks are still online today despite fears that they would be shut down over the weekend.
Ex-employees, and those who have now been given a short-term contract with the administrators, have rallied round again to keep the network in operation.
At the end of last week, the networks were set to close after emergency funding from Citibank failed to materialise.
Citibank blocked access to the company's account, which has a balance of €15.2m, as it was unable to provide asset-backed guarantees for the money.
It would be theoretically possible for the receivers to appeal against the decision, but a ruling would take at least six weeks.
The company came under additional pressure when Alcatel said that it would withdraw KPNQwest's rights to use its software on the network unless the receivers came up with an initial payment towards outstanding debts.
KPNQwest was also told that its power company, to which it also owed money, would shut off its electricity.
Possible bidders for the network, such as Trimoteur, have indicated that they would not buy KPNQwest if the network was shut down, as the cost of starting it up again would be prohibitive.
The administrators have since been ordered to keep the networks going to improve the chances of a financial rescue.
Although KPNQwest and Ebone claim to have almost 50 per cent of Europe's internet traffic running across their circuits, it is thought that most customers have already shifted to other carriers.
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