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AS1921

RCODEZERO-ANYCAST-SEC1-TLD

RcodeZero Anycast DNS

Registry

Authoritative registration data

AS number
1921
Name
RCODEZERO-ANYCAST-SEC1-TLD
Organisation
RcodeZero Anycast DNS
Country
RIR
RIPE
Registered
Source:asn:rdap retrieved

IPv4 prefixes

15

IPv6 prefixes

15

Total announced

30

Announced prefixes

Observed in BGP by route collectors, not a registry allocation list

Prefixes announced by AS1921
176.97.158.0/24 IPv4 /24 not checked
185.102.12.0/24 IPv4 /24 not checked
185.167.176.0/24 IPv4 /24 not checked
185.80.188.0/24 IPv4 /24 not checked
185.80.191.0/24 IPv4 /24 not checked
192.174.68.0/24 IPv4 /24 not checked
193.227.117.0/24 IPv4 /24 not checked
193.46.128.0/24 IPv4 /24 not checked
193.46.133.0/24 IPv4 /24 not checked
193.46.134.0/24 IPv4 /24 not checked
193.46.135.0/24 IPv4 /24 not checked
194.0.182.0/24 IPv4 /24 not checked
194.0.25.0/24 IPv4 /24 not checked
194.50.187.0/24 IPv4 /24 not checked
91.237.67.0/24 IPv4 /24 not checked
2001:678:20::/48 IPv6 /48 not checked
2001:67c:10b8::/48 IPv6 /48 not checked
2001:67c:1bc::/48 IPv6 /48 not checked
2a02:850:ffe0::/48 IPv6 /48 RPKI valid
2a02:850:ffe5::/48 IPv6 /48 not checked
2a02:850:ffe6::/48 IPv6 /48 not checked
2a02:850:ffe7::/48 IPv6 /48 not checked
2a02:850:ffff::/48 IPv6 /48 not checked
2a04:2b00:14cc::/48 IPv6 /48 not checked
2a04:2b00:14dd::/48 IPv6 /48 not checked
2a04:2b00:14ee::/48 IPv6 /48 not checked
2a05:7f00:188::/48 IPv6 /48 not checked
2a05:7f00:191::/48 IPv6 /48 not checked
2a0b:8e00:1::/48 IPv6 /48 RPKI not found
2a0b:8e00::/48 IPv6 /48 not checked

No rows match “”.

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Source:ripestat:announced-prefixes observed

Internet Exchanges

Exchanges where this network has a listed peering LAN connection

Internet Exchange memberships listed for AS1921
Address families
AAIX 10,000 Mbps IPv4 · IPv6
BNIX 10,000 Mbps IPv4 · IPv6
GigaPIX - LAN 1: LAN1 10,000 Mbps IPv4 · IPv6
LINX LON1: Main 1,000 Mbps IPv4 · IPv6
LU-CIX 10,000 Mbps IPv4 · IPv6
RIX 10,000 Mbps IPv4 · IPv6
Rheintal IX: Peering-LAN 1,000 Mbps IPv4 · IPv6
SIX SI 10,000 Mbps IPv4 · IPv6
SwissIX: Peering 10,000 Mbps IPv4 · IPv6
TREX Tampere: Unicast Peering 10,000 Mbps IPv4 · IPv6

No rows match “”.

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Source:peeringdb retrieved

Exchange membership means the network has a listed connection; it does not prove peering with other members.

Observed adjacencies

Networks seen next to AS1921 in BGP paths by route collectors.

Source:ripestat:asn-neighbours observed

Observed upstreams

55 networks seen before AS1921 in AS paths

Observed upstreams
Families
AS20473 233 2,561
v4 v6
AS44066 DE-FIRSTCOLO 81 900
v4 v6
AS56655 GIGAHOST 334 742
v4 v6
AS49544 i3Dnet 61 597
v4 v6
AS29222 Infomaniak-AS 41 486
v4 v6
AS6939 HURRICANE 300 478
v4 v6
AS30971 24 288
v4 v6
AS7195 7195 29 259
v4 v6
AS5459 139 196
v4 v6
AS42708 15 184
v4 v6
AS42473 33 166
v4 v6
AS8849 20 141
v4 v6
AS36236 NETACTUATE 19 122
v4 v6
AS199524 GCORE 14 101
v4 v6
AS55803 11 96
v4 v6
AS22548 11 74
v4 v6
AS48362 TKSWF-AS 4 58
v4 v6
AS25091 IP-Max 9 47
v4 v6
AS29014 3 36
v4 v6
AS8308 4 29
v4 v6
AS12779 ITGATE 4 25
v4 v6
AS8298 IPNG 2 24
v4 v6
AS5405 7 21
v4 v6
AS60171 3 20
v4 v6
AS42310 5 18
v4 v6
AS14840 ASN14840 3 17
v4 v6
AS3214 XTOM 3 14
v4 v6
AS12552 2 14
v4 v6
AS34927 iFog-GmbH 4 12
v4 v6
AS1836 1 12
v4 v6
AS29075 5 11
v4 v6
AS33891 CORE-BACKBONE 8 10
v4
AS34549 MEER-AS 7 10
v4 v6
AS35280 F5 6 9
v4 v6
AS56630 MELBICOM-EU-AS 2 8
v4 v6
AS50304 6 7
v4
AS9002 RETN-AS 3 7
v6
AS37282 3 7
v4
AS6057 6057 4 6
v4 v6
AS34177 CELESTE-AS 4 6
v4 v6
AS41327 FIBERTELECOM-AS 4 6
v4 v6
AS15802 DU-AS1 3 6
v4
AS4601 1 6
v6
AS37497 ORG-NPL3-AFRINIC 4 4
v4
AS4455 3 4
v4 v6
AS39351 ESAB-AS 3 4
v4
AS3216 SOVAM-AS 3 3
v4
AS37100 2 3
v4
AS137409 GSLNETWORKS-AS-AP 2 3
v4
AS1031 PEER1-1031 2 2
v4
AS3741 2 2
v4
AS6204 2 2
v4
AS37468 ORG-AC4-AFRINIC 2 2
v4
AS9044 1 2
v4
AS21215 1 1
v4

No rows match “”.

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Observed downstreams

3 networks seen after AS1921 in AS paths

Observed downstreams
Families
AS35052 AS_AT_TLD_SERVICES 140 287
v4 v6
AS11644 29 78
v4 v6
AS12136 7 10
v4 v6

No rows match “”.

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Uncertain adjacencies

58 adjacencies that may be an artefact of collector peering

Uncertain adjacencies
Families
AS24482 SGGS-AS-AP 3 34
v4 v6
AS62167 3 34
v4 v6
AS48185 1 28
v4 v6
AS59890 1 28
v4 v6
AS20612 SWISSIX 1 24
v4 v6
AS6830 LibertyGlobal 3 23
v4 v6
AS212483 level86 2 22
v4 v6
AS58057 SECUREBIT 1 18
v4 v6
AS1828 UNITAS 3 14
v4 v6
AS3170 3 14
v4 v6
AS6424 3 14
v4 v6
AS48070 3 14
v4 v6
AS50300 3 14
v4 v6
AS34288 2 14
v4 v6
AS3212 1 14
v4 v6
AS6730 SUNRISE 1 14
v4 v6
AS45049 1 14
v4 v6
AS49432 1 14
v4 v6
AS14630 INVESCO 3 13
v4 v6
AS25160 3 13
v4 v6
AS12307 RAVANA 1 12
v4 v6
AS15623 1 12
v4 v6
AS21232 1 12
v4 v6
AS29691 NINE 1 12
v4 v6
AS51873 1 12
v4 v6
AS59414 1 12
v4 v6
AS196621 FREESTONE 1 12
v4 v6
AS198385 AlpineDC 1 12
v4 v6
AS209823 1 12
v4 v6
AS198150 SIACOM-AS 2 11
v4 v6
AS207841 3 10
v4 v6
AS12969 3 9
v4
AS51185 MAINSTREAMING-AS 3 9
v4 v6
AS35266 EXN-AS 2 9
v4 v6
AS31742 SOTACONNECT 1 8
v4 v6
AS28792 3 7
v4
AS31122 DIGIWEB-AS 3 7
v6
AS39122 3 7
v4 v6
AS8218 NEO-ASN 1 6
v6
AS20932 1 6
v4 v6
AS34019 HIVANE 1 6
v4 v6
AS47147 AS-ANX 1 6
v6
AS56987 AS-ABACLOUDA 1 6
v4 v6
AS59891 1 6
v4
AS198249 1 6
v6
AS202032 1 6
v4
AS6667 2 4
v4 v6
AS61573 2 4
v4 v6
AS6894 1 4
v6
AS16347 2 3
v4
AS17639 CONVERGE-AS 2 3
v4
AS37680 2 3
v4
AS37721 ORG-VTS1-AFRINIC 2 3
v4
AS213241 TECHIT 2 2
v6
AS263152 2 2
v4
AS271253 2 2
v4
AS8529 OMANTEL-AS 1 2
v6
AS18106 VIEWQWEST-SG-AP 1 1
v4

No rows match “”.

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Note:
These are observed adjacencies derived from BGP path data, not confirmed commercial relationships. A network appearing before another in an AS path does not establish that it is a paying transit customer, a settlement free peer, or anything else contractual. Adjacencies marked uncertain were seen only as direct peers of a route collector, so the collector's own peering may have created them.