Mobile operator · Germany

O2 ASN, MCC/MNC and IP prefixes

O2 is a mobile network operator in Germany, part of Telefónica. It routes traffic through 3 autonomous systems (AS6805, AS12638, AS13184), which announced 39 prefixes at our last probe, and its SIMs carry MCC/MNC 262-03, 262-05, 262-07, 262-08, 262-11, 262-12, 262-20.

ASNs
3
Prefixes
39
Reviewed
September 2026
Country
Germany (DE)
Parent group
Telefónica
ASNs
AS6805, AS12638, AS13184
MCC / MNC
262-03, 262-05, 262-07, 262-08, 262-11, 262-12, 262-20
Network generations
4G LTE, 5G
ASNs confirmed
3 of 3
Announced prefixes
39 at probe on 2026-09-06
Official site
www.o2online.de

Autonomous systems

Holder names and prefix counts come from the RIPE NCC's RIPEstat Data API, fetched on 2026-09-06. Role and confidence come from the evidence linked in each row; "confirmed" means a PeeringDB or RIPEstat record, or the operator's own site, names the operator.
O2 autonomous systems
ASNHolder (RIPEstat)RoleAnnouncedIPv4 prefixesIPv6 prefixesEvidence
AS6805TDDE-ASN1 Telefonica Germany GmbH & Co.OHGPeeringDB: Telefónica Germany GmbH & Co. OHG · NSPMobile networkconfirmedyes324source · RIPEstat · PeeringDB
AS12638AS12638 Telefonica Germany GmbH & Co.OHGPeeringDB: E-Plus Mobilfunk GmbHMobile networkconfirmedyes30source · RIPEstat · PeeringDB
AS13184HANSENET Telefonica Germany GmbH & Co.OHGPeeringDB: Telefonica Germany GmbH & Co. OHG (AS13184) · Cable/DSL/ISPFixed-lineconfirmedno00source · RIPEstat · PeeringDB

Mobile network codes

The MCC identifies the country and the MNC identifies the operator inside it. Together they appear in the IMSI of every SIM on the network and in device diagnostics; they are how a handset knows which network it is on.
O2 MCC and MNC
MCC-MNCMCCMNCSource
262-0326203www.bundesnetzagentur.de/DE/Fachthemen/Telekommu
262-0526205www.bundesnetzagentur.de/DE/Fachthemen/Telekommu
262-0726207www.bundesnetzagentur.de/DE/Fachthemen/Telekommu
262-0826208www.bundesnetzagentur.de/DE/Fachthemen/Telekommu
262-1126211www.bundesnetzagentur.de/DE/Fachthemen/Telekommu
262-1226212www.bundesnetzagentur.de/DE/Fachthemen/Telekommu
262-2026220www.bundesnetzagentur.de/DE/Fachthemen/Telekommu

About O2

O2 is a German mobile network run by Telefónica Germany GmbH & Co. OHG, whose parent group is Telefónica. The registry documents AS6805 as the ASN carrying the mobile network, with AS12638, the former E-Plus network, also recorded as mobile and AS13184 as fixed. Seven MCC/MNC rows are recorded under country code 262.

The registry records three ASNs for O2. AS6805 is documented as the mobile one and appears in PeeringDB as Telefónica Germany GmbH & Co. OHG with the network type NSP; at the last probe it announced 32 IPv4 prefixes against 4 in IPv6. AS12638 is the former E-Plus Mobilfunk network, still carried in PeeringDB under that name, and it announced three IPv4 prefixes and none in IPv6. AS13184 is the former HanseNet network, typed in PeeringDB as Cable/DSL/ISP and recorded as fixed, and it was not announcing prefixes.

An address whose origin ASN is AS6805 or AS12638 is routed by Telefónica Germany on an ASN the registry documents as mobile, which is the strongest reading the recorded data supports. Neither entry separates its prefixes by access type, so the origin ASN does not confirm that a given address is a handset connection. AS13184 is recorded as fixed rather than mobile, and it announced nothing at the last probe, so an address attributed to it needs evidence beyond the ASN before any access type is claimed.

Research note. telefonica.de/unternehmen.html: 'Kernmarke des Unternehmens ist O2' under Telefónica Deutschland Holding AG, which contributes about a quarter of Telefónica group revenue. AS6805 (PeeringDB: Telefónica Germany GmbH & Co. OHG, NSP, 5-10 Tbps; RIPEstat: announced) is the main network; AS12638 is the former E-Plus Mobilfunk GmbH network, PeeringDB notes it was acquired by Telefonica Germany (AS6805), still announced per RIPEstat; AS13184 is the former HanseNet (Alice DSL) fixed-line network, PeeringDB type Cable/DSL/ISP, not announced per RIPEstat. Candidate MNC rows 262 16, 262 17 and 262 77 are not on the BNetzA allocation list (Stand 03.08.2026) and were dropped (77 falls in the test range 70-79). o2online.de/netz/ page title states '5G/LTE'.

Check whether an IP belongs to O2

Look up the origin ASN of the address and compare it with the table above. RIPEstat answers for any address, and the RADB whois mirror lists the routes registered under an ASN.
Origin ASN of an address
curl -s "https://stat.ripe.net/data/prefix-overview/data.json?resource=203.0.113.9" | jq '.data.asns'
Routes registered under AS6805
whois -h whois.radb.net -- '-i origin AS6805' | grep ^route

Questions

What is O2 Germany's ASN?
AS6805, registered to Telefónica Germany GmbH & Co. OHG, is the ASN the registry documents as carrying the O2 mobile network. AS12638, the former E-Plus Mobilfunk network, is also recorded as mobile, and AS13184, the former HanseNet network, is recorded as fixed and was not announcing prefixes.
What is the MCC/MNC of O2 Germany?
The registry records seven network codes under mobile country code 262, which are 03, 05, 07, 08, 11, 12 and 20. All seven come from the German regulator's IMSI block allocation list, and the registry records no further codes for the operator.
Is an IP from AS6805 a mobile IP?
AS6805 is the ASN the registry records as O2's mobile network, so an address announced from it is routed by Telefónica Germany. The registry does not separate that ASN's prefixes by access type, so an individual address cannot be confirmed as a mobile connection from the origin ASN alone.

Where O2 meets other networks

PeeringDB records O2 as a participant at internet exchanges in 5 cities. Each city page lists the exchanges there and the other networks present.

Network cities in Germany: Frankfurt, Dusseldorf, Berlin, Hamburg, Munich.

Sources

ASN and prefix data describe how the operator's networks are registered and announced. They do not identify an individual subscriber or where a device is, since carriers route traffic from many areas through shared gateways.