AS overview
Test target: 2a10:ccc0:110::1 · static prefix probe · address space: mixed · prefixes announced: 2
prefix(es): 2a10:ccc0:110::/44, 2001:67c:2dc8::/48
Targets & per-vantage-point probe results (1 target(s) across 7 vantage point(s))
Source codes (hover any badge for full description): CUR=curated · NS/SOA/MX=DNS records · SPF=SPF TXT · DRV=holder-derived (www, ns1, mail, gw, …) · ATL=RIPE Atlas · PDB=PeeringDB · WHOIS=RIPE whois · RDAP=RIPE RDAP · HIT=IPv6 Hitlist · RTR=in-prefix path hop (router) · PRB=static prefix probe · SYN=synthetic prefix::1 fallback
| Target IP / hostname | Source | SRB host (SOX, Belgrade) | DE host (Berlin) | DE host (Düsseldorf) | NL host (go6lab) | ITA host (Karsolink) | SLO host (6connect) | SLO host (T-2) | ||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ping | 1500B | :80 | :443 | reached | ping | 1500B | :80 | :443 | reached | ping | 1500B | :80 | :443 | reached | ping | 1500B | :80 | :443 | reached | ping | 1500B | :80 | :443 | reached | ping | 1500B | :80 | :443 | reached | ping | 1500B | :80 | :443 | reached | ||
2a10:ccc0:110::1 | prb | ✓ | ✓ | refused | refused | - | ✓ | ✗ | refused | refused | - | ✓ | ✗ | refused | refused | - | ✓ | ✓ | ? | ? | - | ✓ | ✓ | refused | refused | - | ✓ | ✓ | refused | refused | - | ✓ | ✓ | refused | refused | - |
MIX-IT / NAMEX / MINAP / TOP-IX / VSIX / EQUINIX-MILAN / BGPX-ROME / NAMEX-BARI / PCIX / DECIX-PALERMO peering
MIX-IT / NAMEX / MINAP / TOP-IX / VSIX / EQUINIX-MILAN / BGPX-ROME / NAMEX-BARI / PCIX / DECIX-PALERMO member - Open peering, peering member, since 2026-06-24. IPv6 LAN: 2001:7f8:b:100:1d1:a521:6418:101. Locations: -.
RPKI & ASPA
2 of 2 prefix(es) covered by a valid ROA.
| Prefix | RPKI state | Reason | Covering VRP(s) |
|---|---|---|---|
2a10:ccc0:110::/44 | ✓ valid | matched VRP (correct origin, length within maxLength) | AS216418 /44 maxLen 48 (ripe) |
2001:67c:2dc8::/48 | ✓ valid | matched VRP (correct origin, length within maxLength) | AS216418 /48 maxLen 48 (ripe) |
Random-IP probe (yarrp) into the AS' prefixes
We probed 70 arbitrary IPv6 address(es) inside AS216418's announced prefix(es). No router inside the prefix responded. The deepest visible hop was 2a02:b88:0:10::2 at hop 24 - that router answers ICMPv6 Echo. This is not in AS216418's announced prefix; operationally it's the AS-edge / peering interface (often on an IXP peering address or an upstream's /127 link). The traceroute boundary is the AS edge: ICMPv6 Time-Exceeded responses from anything inside this AS are filtered.
ICMPv6 Type 2 (Packet Too Big) acceptance - active test
Type 2 honored. Forged ICMPv6 PTB (MTU=1280) was accepted by the destination's stack: the next 1500-byte Echo Reply arrived split into 2 fragments via the IPv6 Fragment Header.
method: ICMPv6 Echo + forged PTB, tested 2026-09-23T12:08:46Z
Multi-vantage path map
Every hop of all vantages’ traceroutes toward the target, drawn left→right, grouped into per-AS bubbles (a hop seen from several vantages is one shared bubble, so converging paths merge). It answers two questions per vantage — shown on each source bubble as echo ✓/⚠/✗ · trace ✓/✗: did the destination reply to ICMPv6 Echo (✓ honored, ⚠ replied but PTB not honored, ✗ no reply), and did the traceroute reach it. A line to the target is drawn only when that vantage got an echo reply — solid if the PTB was honored, dashed if not (reachable but a broken-PMTUD / RFC 4890 violation). The path depth still shows how far the traceroute itself got, and runs of unanswered (* *) hops collapse into one dashed “silent” bubble. Open full size ↗
- ● SRB host (SOX, Belgrade)
- ● DE host (Berlin)
- ● DE host (Düsseldorf)
- ● NL host (go6lab)
- ● ITA host (Karsolink)
- ● SLO host (6connect)
- ● SLO host (T-2)
- ── solid line = echo reply, PTB honored (clean reach)
- — — dashed line = echo reply but PTB not honored (RFC 4890 violation)
- no line = no echo reply (never reached)
- ◉ target: green = clean, amber = reachable-but-violation / unreachable
- ⚠ suspected drop AS
- ⋯ silent (unanswered) hops
- ● IXP hop
From SRB host (SOX, Belgrade) openRFC 4890 ✓
filter likely at: (none) · min PMTU on path: 1500
Path (traceroute + mtr + PTR)
| # | IP / PTR | RTT | mtr loss | AS | AS holder |
|---|---|---|---|---|---|
| 1 | 2a09:ab81::1 | 0.2ms | 0%* | AS60733 | PERKE-NET - ZORAN PEROVIC trading as Agencija Perke.NET, RS |
| 2 | 2001:7f8:1e::62 | 8.8ms | 0% | AS13004 | SOX - Serbian Open Exchange DOO, RS |
| 3 | as47927.v6.netix.net 2001:67c:29f0::4:7927:1 | 41.1ms | 0% | - | NA |
| 4 | 2a02:b88:0:8::1 | 45.3ms | 0% | AS47927 | WIFIWEB - WIFIWEB s.r.l., IT |
| 5 | 2a02:b88:0:7::1 | 44.0ms | 0% | AS47927 | WIFIWEB - WIFIWEB s.r.l., IT |
| 6 | 2a02:b88:0:10::2 | 40.3ms | 0% | AS47927 | WIFIWEB - WIFIWEB s.r.l., IT |
tracepath -6
1?: [LOCALHOST] 0.014ms pmtu 1500
1: _gateway 0.321ms
1: _gateway 0.396ms
2: 2001:7f8:1e::62 8.935ms
3: as47927.v6.netix.net 42.039ms asymm 6
4: 2a02:b88:0:8::1 44.943ms asymm 5
5: 2a02:b88:0:7::1 44.456ms asymm 4
6: 2a02:b88:0:10::2 40.463ms reached
Resume: pmtu 1500 hops 6 back 5 From DE host (Berlin) echo onlyRFC 4890 ✓
filter likely at: unknown · min PMTU on path: 1476
Path (traceroute + mtr + PTR)
| # | IP / PTR | RTT | mtr loss | AS | AS holder |
|---|---|---|---|---|---|
| 1 | xe-0-0-13-178.gw01.ber01.as59645.net 2a06:d1c1:100:b::1 | 0.3ms | 0%* | AS59645 | WYBT-NET - Tobias Fiebig, DE |
| 2 | ae0-2453.cr10.ber01.lwlcom.net 2a06:d1c0::dead:beef:1c02 | 0.6ms | 0%* | AS59645 | WYBT-NET - Tobias Fiebig, DE |
| 3 | ae0-150.cr10.fra01.lwlcom.net 2a00:c380:b200:230::174 | 10.0ms | 0% | AS50629 | LWLCOM - LWLcom GmbH, DE |
| 4 | ae0-100.cr10.fra02.lwlcom.net 2a00:c380:b200:230::215 | 10.3ms | 0% | AS50629 | LWLCOM - LWLcom GmbH, DE |
| 5 | ae0-10.cr10.fra06.lwlcom.net 2a00:c380:b200:230::236 | 10.0ms | 0% | AS50629 | LWLCOM - LWLcom GmbH, DE |
| 6 | interIx.1-ix.net 2001:7f8:115:1::243 | 16.7ms | 0% | - | NA |
| 7 | 2001:7f8:134::57 | 35.4ms | 0% | - | NA |
| 8 | 2a10:ccc0:110::3 | 35.2ms | 10% | AS216418 | FSCD-NET - Filippo Sacco Comis Dell_Oste, IT |
| 9 | fscd-net-AS216418.mix-it.net @MIX-IT / NAMEX / MINAP / TOP-IX / VSIX / EQUINIX-MILAN / BGPX-ROME / NAMEX-BARI / PCIX / DECIX-PALERMO 2001:7f8:b:100:1d1:a521:6418:101 | 35.6ms | 0% | - | NA |
Rate-limited ICMPv6: hop 8 (loss between 5% and 95% across mtr cycles - the router replies but only sometimes).
tracepath -6
1?: [LOCALHOST] 0.037ms pmtu 1500
1: xe-0-0-13-178.gw01.ber01.as59645.net 0.419ms
1: xe-0-0-13-178.gw01.ber01.as59645.net 0.378ms
2: ae0-2453.cr10.ber01.lwlcom.net 2.469ms
3: ae0-150.cr10.fra01.lwlcom.net 10.317ms asymm 7
4: ae0-100.cr10.fra02.lwlcom.net 10.628ms asymm 8
5: ae0-10.cr10.fra06.lwlcom.net 10.156ms asymm 7
6: interIx.1-ix.net 18.584ms asymm 8
7: 2001:7f8:134::57 35.507ms asymm 13
8: 2001:7f8:134::57 35.474ms pmtu 1476
8: 2a10:ccc0:110::3 35.658ms asymm 12
9: fscd-net-AS216418.mix-it.net 30.591ms reached
Resume: pmtu 1476 hops 9 back 11 From DE host (Düsseldorf) echo onlyRFC 4890 ✓
filter likely at: unknown · min PMTU on path: 1476
Path (traceroute + mtr + PTR)
| # | IP / PTR | RTT | mtr loss | AS | AS holder |
|---|---|---|---|---|---|
| 1 | xe-0-0-12-142.gw01.dus01.as59645.net 2a06:d1c1:100:d::1 | 0.2ms | 0%* | AS59645 | WYBT-NET - Tobias Fiebig, DE |
| 2 | eth1-0-12-h5594.edge5-dus1.bb.wiit.network 2001:4ba0:92f4:3::1 | 1.0ms | 0% | AS24961 | MYLOC-AS - WIIT AG, DE |
| 3 | * | - | 0% | - | |
| 4 | lag30.core3-dus1.bb.wiit.network 2001:4ba0:ffe9:109::2 | 0.2ms | 0% | AS24961 | MYLOC-AS - WIIT AG, DE |
| 5 | lag0-vl1010.core1-ams-ni.bb.wiit.network 2001:4ba0:ffe9:153::3 | 3.7ms | 0% | AS24961 | MYLOC-AS - WIIT AG, DE |
| 6 | 2001:7f8:134::57 | 26.4ms | 10% | - | NA |
| 7 | 2a10:ccc0:110::3 | 21.0ms | 10% | AS216418 | FSCD-NET - Filippo Sacco Comis Dell_Oste, IT |
| 8 | fscd-net-AS216418.mix-it.net @MIX-IT / NAMEX / MINAP / TOP-IX / VSIX / EQUINIX-MILAN / BGPX-ROME / NAMEX-BARI / PCIX / DECIX-PALERMO 2001:7f8:b:100:1d1:a521:6418:101 | 24.3ms | 0% | - | NA |
Rate-limited ICMPv6: hop 6, hop 7 (loss between 5% and 95% across mtr cycles - the router replies but only sometimes).
tracepath -6
1?: [LOCALHOST] 0.026ms pmtu 1500
1: xe-0-0-12-142.gw01.dus01.as59645.net 0.414ms
1: xe-0-0-12-142.gw01.dus01.as59645.net 0.336ms
2: eth1-0-12-h5594.edge5-dus1.bb.wiit.network 1.407ms
3: no reply
4: lag30.core3-dus1.bb.wiit.network 0.491ms
5: lag0-vl1010.core1-ams-ni.bb.wiit.network 3.874ms
6: 2001:7f8:134::57 26.747ms asymm 12
7: 2001:7f8:134::57 24.130ms pmtu 1476
7: 2a10:ccc0:110::3 21.343ms asymm 11
8: fscd-net-AS216418.mix-it.net 24.687ms reached
Resume: pmtu 1476 hops 8 back 10 From NL host (go6lab) openRFC 4890 ✓
filter likely at: (none) · min PMTU on path: 1500
Path (traceroute + mtr + PTR)
| # | IP / PTR | RTT | mtr loss | AS | AS holder |
|---|---|---|---|---|---|
| 1 | 2a00:8642:42::2 | 3.4ms | 0% | AS203993 | GNA-DC1-AS - S.J.M. Steffann, NL |
| 2 | gw.friends.steffann.nl 2a00:8642:1000:f000::1 | 3.5ms | 0%* | AS203993 | GNA-DC1-AS - S.J.M. Steffann, NL |
| 3 | speed-ix.netix.net 2001:7f8:b7::a505:7463:1 | 4.1ms | 0% | - | NA |
| 4 | as47927.v6.netix.net 2001:67c:29f0::4:7927:1 | 31.0ms | 0% | - | NA |
| 5 | 2a02:b88:0:8::1 | 43.1ms | 0% | AS47927 | WIFIWEB - WIFIWEB s.r.l., IT |
| 6 | 2a02:b88:0:7::1 | 40.7ms | 0% | AS47927 | WIFIWEB - WIFIWEB s.r.l., IT |
| 7 | 2a02:b88:0:10::2 | 37.0ms | 0% | AS47927 | WIFIWEB - WIFIWEB s.r.l., IT |
tracepath -6
1?: [LOCALHOST] 0.032ms pmtu 1500
1: 2a00:8642:42::2 2.312ms
1: 2a00:8642:42::2 3.723ms
2: gw.friends.steffann.nl 4.472ms
3: speed-ix.netix.net 6.809ms
4: as47927.v6.netix.net 30.636ms asymm 10
5: 2a02:b88:0:8::1 39.368ms asymm 11
6: 2a02:b88:0:7::1 45.043ms asymm 12
7: 2a02:b88:0:10::2 35.624ms reached
Resume: pmtu 1500 hops 7 back 13 From ITA host (Karsolink) openRFC 4890 ✓
filter likely at: (none) · min PMTU on path: 1500
Path (traceroute + mtr + PTR)
| # | IP / PTR | RTT | mtr loss | AS | AS holder |
|---|---|---|---|---|---|
| 1 | * | - | 0%* | - | |
| 2 | 2a12:d8c0:109f:121::a1 | 0.4ms | 0%* | AS204471 | KARSOLINK - 2S Computers SRL, IT |
| 3 | * | - | 50% | - | |
| 4 | fscd-net-AS216418.mix-it.net @MIX-IT / NAMEX / MINAP / TOP-IX / VSIX / EQUINIX-MILAN / BGPX-ROME / NAMEX-BARI / PCIX / DECIX-PALERMO 2001:7f8:b:100:1d1:a521:6418:101 | 11.7ms | 0% | - | NA |
Rate-limited ICMPv6: hop 3 (loss between 5% and 95% across mtr cycles - the router replies but only sometimes).
tracepath -6
1?: [LOCALHOST] 0.032ms pmtu 1500
1: karsolink-01.net.karsolink.com 0.581ms
1: karsolink-01.net.karsolink.com 0.482ms
2: 2a12:d8c0:109f:121::a1 0.566ms
3: 2a12:d8c0:101f:103::1 8.850ms
4: fscd-net-AS216418.mix-it.net 12.034ms reached
Resume: pmtu 1500 hops 4 back 4 From SLO host (6connect) openRFC 4890 ✓
filter likely at: (none) · min PMTU on path: 1500
Path (traceroute + mtr + PTR)
| # | IP / PTR | RTT | mtr loss | AS | AS holder |
|---|---|---|---|---|---|
| 1 | fw1-lju.6connect.com 2607:fae0:a000::2 | 0.5ms | 0%* | AS8038 | 6CONNECT - 6connect, Inc., US |
| 2 | * | - | - | - | |
| 3 | * | - | 0% | - | |
| 4 | 2a00:ee0:1:10::2 | 1.1ms | 0% | AS5603 | SIOL-NET - Telekom Slovenije, d.d., SI |
| 5 | 2a11:4142:2002 | 1.5ms | 0% | - | |
| 6 | 2620:107:4008:e85::2 | 8.2ms | 0% | - | NA |
| 7 | fscd-net-AS216418.mix-it.net @MIX-IT / NAMEX / MINAP / TOP-IX / VSIX / EQUINIX-MILAN / BGPX-ROME / NAMEX-BARI / PCIX / DECIX-PALERMO 2001:7f8:b:100:1d1:a521:6418:101 | 11.1ms | 0% | - | NA |
tracepath -6
1?: [LOCALHOST] 0.018ms pmtu 9000
1: fw1-lju.6connect.com 0.821ms
1: fw1-lju.6connect.com 0.520ms
2: no reply
3: 2a00:ee1:800:9::1 2.893ms
4: 2a00:ee0:1:10::2 1.637ms asymm 3
5: 2a00:ee0:1:15::2 1.846ms pmtu 1500
5: 2a11:4142:2002:: 1.193ms asymm 6
6: 2620:107:4008:e85::2 8.357ms asymm 7
7: fscd-net-AS216418.mix-it.net 11.723ms reached
Resume: pmtu 1500 hops 7 back 7 From SLO host (T-2) openRFC 4890 ✓
filter likely at: (none) · min PMTU on path: 1500
Path (traceroute + mtr + PTR)
| # | IP / PTR | RTT | mtr loss | AS | AS holder |
|---|---|---|---|---|---|
| 1 | * | - | 0%* | - | |
| 2 | 2a01:260:1::225 | 2.4ms | 0%* | AS34779 | T-2-AS - T-2, d.o.o., SI |
| 3 | 2a01-260-1-1--9a.core6.t-2.net 2a01:260:1:1::9a | 1.7ms | 0%* | AS34779 | T-2-AS - T-2, d.o.o., SI |
| 4 | 2001:7f8:46:0:1:0:5:7463 | 15.3ms | 0% | AS51988 | ARNES-SIX - ARNES, SI |
| 5 | as47927.v6.netix.net 2001:67c:29f0::4:7927:1 | 30.8ms | 0% | - | NA |
| 6 | 2a02:b88:0:8::1 | 34.9ms | 0% | AS47927 | WIFIWEB - WIFIWEB s.r.l., IT |
| 7 | 2a02:b88:0:7::1 | 38.7ms | 0% | AS47927 | WIFIWEB - WIFIWEB s.r.l., IT |
| 8 | 2a02:b88:0:10::2 | 28.2ms | 0% | AS47927 | WIFIWEB - WIFIWEB s.r.l., IT |
tracepath -6
1?: [LOCALHOST] 0.026ms pmtu 1500
1: 2a01:261:313:b814::1 0.822ms
1: no reply
2: 2a01:260:1::225 3.456ms
3: 2a01-260-1-1--9a.core6.t-2.net 2.631ms
4: 2001:7f8:46:0:1:0:5:7463 15.700ms
5: as47927.v6.netix.net 31.612ms asymm 6
6: 2a02:b88:0:8::1 35.651ms asymm 7
7: 2a02:b88:0:7::1 38.502ms asymm 8
8: 2a02:b88:0:10::2 29.306ms reached
Resume: pmtu 1500 hops 8 back 7