Globally distributed IPv4 and IPv6 NTP service

The following NTP server sets are available to SixXS users over both IPv4 and IPv6. We especially recommend using a NTP server when using either the AYIYA or heartbeat protocols.

These NTP server sets comprise out of NTP Stratum 2-4 servers. Please only use the above given dns names for this service. The set of servers is automatically updated based on availablity and quality.

NTP Server Pools

Pool DNS Name	Description
ntp.sixxs.net	Global Server Set
ntp.eu.sixxs.net	European based Server Set
ntp.us.sixxs.net	United States based Server Set
ntp.ap.sixxs.net	Asia Pacific based Server Set

For other NTP servers and more information, check out NTP.org and of course their pool.ntp.org - NTP Server Pool project.

NTP Server Status

Below table gives an overview of the individual NTP servers and their status. Do not use these directly, as service availablity on them can be turned on/off any time. Thus use only the ntp{.eu|ap|us}.sixxs.net hostnames as given above as those sets comprise only the active servers. Servers which are marked green are included in the pool, but orange (Stratum > 4) or red (stratum == 0, aka not available) are excluded from the DNS pool.

TLD	PoP	Family	Stratum	Offset	Delay	Inconsistencies / notes
eu
	bebru01	IPv4	3	0.139016	0.03273
		IPv6	3	0.150164	0.05525
	chzrh01	IPv6	2	0.096682	0.04744
		IPv4	2	0.171124	0.05367
	chzrh02	IPv6	3	-0.095775	0.04129	Address not at ns1, Address not at ns2, Address not at ns3
		IPv4	3	-0.096081	0.0421	Address not at ns1, Address not at ns2, Address not at ns3
	decgn01	IPv4	2	-0.018249	0.03241
		IPv6	2	-0.018303	0.03246
	dedus01	IPv6				Excluded from pool, Address not in DNSdb
		IPv4				Excluded from pool, Address not in DNSdb
	deham01	IPv4	2	-0.002991	0.03673
		IPv6	2	0.008387	0.05882
	deham02	IPv6	2	0.019675	0.05826
		IPv4	2	0.008788	0.03653
	demuc02	IPv6	2	0.01044	0.0583
		IPv4	2	0.007213	0.05128
	dkcph01	IPv6	2	0.440849	0.03929
		IPv4	2	0.440739	0.0394
	dkcph02	IPv6	2	-0.049382	0.04955
		IPv4	2	-0.051883	0.03816
	fihel01	IPv4	2	-0.070363	0.06592	Address not at ns1, Address not at ns2, Address not at ns3
		IPv6	2	-0.072514	0.06595	Address not at ns1, Address not at ns2, Address not at ns3
	frmrs01	IPv6	3	-0.066667	0.05138
		IPv4	3	-0.066577	0.05121
	gblon02	IPv4	2	0.088516	0.03358
		IPv6	2	0.088469	0.03377
	iedub01	IPv6	2	0.206868	0.05119
		IPv4	2	0.21083	0.05624
	iegwy01	IPv6	3	0.132714	0.05151	Address not at ns1, Address not at ns2, Address not at ns3
		IPv4	3	0.134519	0.07184	Address not at ns1, Address not at ns2, Address not at ns3
	ittrn01	IPv4	2	0.022894	0.0571
		IPv6	2	0.022098	0.05783
	lulux01	IPv4	2	-0.136915	0.04236
		IPv6	2	-0.136947	0.04239
	nlams01	IPv6	3	0.01802	0.02582
		IPv4	3	0.018029	0.0258
	nlams04	IPv6	2	-0.111363	0.02811
		IPv4	2	-0.111348	0.02826
	nlede01	IPv4	3	-0.041624	0.02882
		IPv6	3	-0.041726	0.02902
	nlhaa01	IPv6	2	-0.067541	0.02832
		IPv4	2	-0.067492	0.02841
	noosl01	IPv4	2	-0.036396	0.04674
		IPv6	2	-0.036467	0.04689
	plpoz01	IPv6				Excluded from pool, Address not at ns1, Address not at ns2, Address not at ns3, Address not in DNSdb
		IPv4				Excluded from pool, Address not at ns1, Address not at ns2, Address not at ns3, Address not in DNSdb
	plwaw01	IPv4	2	0.005577	0.06335
		IPv6	2	0.000693	0.05241
	ptlis01	IPv6	2	0.000332	0.08261
		IPv4	2	-0.000428	0.08783
	sesto01	IPv6	2	-0.010388	0.05405
		IPv4	2	-0.009828	0.07251
	simbx01	IPv4	2	-0.046705	0.07314
		IPv6	2	-0.045089	0.0529
us
	brudi01	IPv6				Excluded from pool, Address not at ns1, Address not at ns2, Address not at ns3, Address not in DNSdb
		IPv4				Excluded from pool, Address not at ns1, Address not at ns2, Address not at ns3, Address not in DNSdb
		IPv4	2	-4e-06	0.02563	Address not at ns1, Address not at ns2, Address not at ns3
	uschi02	IPv4				Excluded from pool, Address not at ns1, Address not at ns2, Address not at ns3, Address not in DNSdb
		IPv6				Excluded from pool, Address not at ns1, Address not at ns2, Address not at ns3, Address not in DNSdb
	usdal01	IPv6	2	0.01357	0.14339
		IPv4	2	0.013351	0.14336
	usphx01	IPv6	3	-0.011362	0.15933
		IPv4	3	-0.011261	0.1593
ap
	nzwlg01	IPv6	2	0.002717	0.31059
		IPv4	2	0.002355	0.31508

Stratums: 8x excluded, 43x S2, 14x S3