AS overview
Test target: 2a0a:f980::1 · static prefix probe · address space: PA · prefixes announced: 1
prefix(es): 2a0a:f980::/29
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 | ||
2a0a:f980::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 2017-02-04. IPv6 LAN: 2001:7f8:b:100:1d1:a5d5:877:225. Locations: -.
RPKI & ASPA
1 of 1 prefix(es) covered by a valid ROA.
| Prefix | RPKI state | Reason | Covering VRP(s) |
|---|---|---|---|
2a0a:f980::/29 | ✓ valid | matched VRP (correct origin, length within maxLength) | AS50877 /29 maxLen 29 (ripe) |
Random-IP probe (yarrp) into the AS' prefixes
We probed 35 arbitrary IPv6 address(es) inside AS50877's announced prefix(es). No router inside the prefix responded. The deepest visible hop was 2001:4ba0:ffe9:9a::2 at hop 12 - that router answers ICMPv6 Echo. This is not in AS50877'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 2026-09-23T12:06:29Z
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 | 0.3ms | 0%* | AS60733 | PERKE-NET - ZORAN PEROVIC trading as Agencija Perke.NET, RS |
| 2 | * | - | 60% | - | |
| 3 | 2a03:5f80:4:2::236:230 | 8.0ms | 10% | - | NA |
| 4 | 2a0a:f980::1 | 36.7ms | 0% | AS50877 | AIRBEAM-AS - Airbeam S.r.l., IT |
Rate-limited ICMPv6: hop 2, hop 3 (loss between 5% and 95% across mtr cycles - the router replies but only sometimes).
tracepath -6
1?: [LOCALHOST] 0.011ms pmtu 1500
1: _gateway 0.702ms
1: _gateway 0.538ms
2: no reply
3: 2a03:5f80:4:2::236:230 8.277ms
4: 2a0a:f980::1 36.903ms reached
Resume: pmtu 1500 hops 4 back 5 From DE host (Berlin) openRFC 4890 ✓
filter likely at: (none) · min PMTU on path: 1500
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 | 0.2ms | 0%* | AS59645 | WYBT-NET - Tobias Fiebig, DE |
| 2 | ae0-2453.cr10.ber01.lwlcom.net 2a06:d1c0::dead:beef:1c02 | 0.5ms | 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 | 10.5ms | 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 | tbiss.1-ix.net 2001:7f8:115:1::1:22 | 32.2ms | 0% | - | NA |
| 7 | 2a0a:f980::1 | 41.9ms | 0% | AS50877 | AIRBEAM-AS - Airbeam S.r.l., IT |
tracepath -6
1?: [LOCALHOST] 0.029ms pmtu 1500
1: xe-0-0-13-178.gw01.ber01.as59645.net 0.511ms
1: xe-0-0-13-178.gw01.ber01.as59645.net 0.458ms
2: ae0-2453.cr10.ber01.lwlcom.net 1.062ms
3: ae0-150.cr10.fra01.lwlcom.net 10.531ms asymm 7
4: ae0-100.cr10.fra02.lwlcom.net 10.502ms asymm 8
5: ae0-10.cr10.fra06.lwlcom.net 10.466ms asymm 7
6: tbiss.1-ix.net 32.542ms asymm 7
7: 2a0a:f980::1 42.253ms reached
Resume: pmtu 1500 hops 7 back 11 From DE host (Düsseldorf) openRFC 4890 ✓
filter likely at: (none) · min PMTU on path: 1500
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 | 0.3ms | 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 | lag10-h5f01.agr4-dus1.bb.wiit.network 2001:4ba0:ffe9:7c::1 | 16.3ms | 0% | AS24961 | MYLOC-AS - WIIT AG, DE |
| 4 | lag30.core3-dus1.bb.wiit.network 2001:4ba0:ffe9:109::2 | 0.2ms | 0% | AS24961 | MYLOC-AS - WIIT AG, DE |
| 5 | lag0-vl1011.core1-fra-ix.bb.wiit.network 2001:4ba0:ffe9:8a::2 | 4.1ms | 0% | AS24961 | MYLOC-AS - WIIT AG, DE |
| 6 | lag0-vl1001.core1-nbg-ncd.bb.wiit.network 2001:4ba0:ffe9:103e::1 | 7.0ms | 0% | AS24961 | MYLOC-AS - WIIT AG, DE |
| 7 | lag0-vl6.core2-nbg-ncd.bb.wiit.network 2001:4ba0:ffe9:103b::1 | 6.8ms | 0% | AS24961 | MYLOC-AS - WIIT AG, DE |
| 8 | 2001:4ba0:ffe9:b8 | 23.1ms | 0% | - | |
| 9 | lag0-vl1009.core1-muc-eq3.bb.wiit.network 2001:4ba0:ffe9:a7::1 | 10.1ms | 0% | AS24961 | MYLOC-AS - WIIT AG, DE |
| 10 | lag0-vl1001.core1-pda-vsix.bb.wiit.network 2001:4ba0:ffe9:da::2 | 20.2ms | 0% | AS24961 | MYLOC-AS - WIIT AG, DE |
| 11 | lag0-vl1001.core1-mil-mix.bb.wiit.network 2001:4ba0:ffe9:db::2 | 20.4ms | 0% | AS24961 | MYLOC-AS - WIIT AG, DE |
| 12 | lag0-vl5.core3-mil-irid.bb.wiit.network 2001:4ba0:ffe9:9a::2 | 20.2ms | 0% | AS24961 | MYLOC-AS - WIIT AG, DE |
| 13 | 2a0a:f980::1 | 20.4ms | 0% | AS50877 | AIRBEAM-AS - Airbeam S.r.l., IT |
tracepath -6
1?: [LOCALHOST] 0.022ms pmtu 1500
1: xe-0-0-12-142.gw01.dus01.as59645.net 0.397ms
1: xe-0-0-12-142.gw01.dus01.as59645.net 0.341ms
2: eth1-0-12-h5594.edge5-dus1.bb.wiit.network 1.101ms
3: no reply
4: lag30.core3-dus1.bb.wiit.network 0.405ms
5: lag0-vl1011.core1-fra-ix.bb.wiit.network 4.527ms
6: lag0-vl1001.core1-nbg-ncd.bb.wiit.network 7.057ms
7: lag0-vl6.core2-nbg-ncd.bb.wiit.network 7.115ms
8: lag0-vl1006.core2-muc2.bb.wiit.network 9.766ms
9: lag0-vl1009.core1-muc-eq3.bb.wiit.network 10.065ms
10: lag0-vl1001.core1-pda-vsix.bb.wiit.network 20.340ms
11: lag0-vl1001.core1-mil-mix.bb.wiit.network 20.402ms asymm 9
12: lag0-vl5.core3-mil-irid.bb.wiit.network 20.401ms asymm 8
13: 2a0a:f980::1 20.590ms reached
Resume: pmtu 1500 hops 13 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 | 2.0ms | 0% | AS203993 | GNA-DC1-AS - S.J.M. Steffann, NL |
| 2 | gw.friends.steffann.nl 2a00:8642:1000:f000::1 | 2.5ms | 0%* | AS203993 | GNA-DC1-AS - S.J.M. Steffann, NL |
| 3 | speed-ix.inter.link 2001:7f8:b7::a500:5405:1 | 5.0ms | 0% | - | NA |
| 4 | r5-ams1-nl.as5405.net 2a11:4140::41 | 27.2ms | 0% | AS5405 | INTERDOTLINK - Inter.link GmbH, DE |
| 5 | r7-ams1-nl.as5405.net 2a11:4140::55 | 25.8ms | 0% | AS5405 | INTERDOTLINK - Inter.link GmbH, DE |
| 6 | r7-fra1-de.as5405.net 2a11:4140::4c | 26.3ms | 0% | AS5405 | INTERDOTLINK - Inter.link GmbH, DE |
| 7 | r3-fra1-de.as5405.net 2a11:4140::6 | 24.2ms | 0% | AS5405 | INTERDOTLINK - Inter.link GmbH, DE |
| 8 | r2-zrh1-ch.as5405.net 2a11:4140::5d | 24.3ms | 0% | AS5405 | INTERDOTLINK - Inter.link GmbH, DE |
| 9 | r1-mil1-it.as5405.net 2a11:4140::29 | 23.8ms | 0% | AS5405 | INTERDOTLINK - Inter.link GmbH, DE |
| 10 | 2a0a:f980::1 | 26.0ms | 0% | AS50877 | AIRBEAM-AS - Airbeam S.r.l., IT |
tracepath -6
1?: [LOCALHOST] 0.049ms pmtu 1500
1: 2a00:8642:42::2 6.122ms
1: 2a00:8642:42::2 2.553ms
2: no reply
3: speed-ix.inter.link 3.427ms asymm 4
4: r5-ams1-nl.as5405.net 25.379ms asymm 15
5: r7-ams1-nl.as5405.net 23.675ms asymm 14
6: r7-fra1-de.as5405.net 25.937ms asymm 13
7: r3-fra1-de.as5405.net 26.608ms asymm 12
8: r2-zrh1-ch.as5405.net 23.563ms asymm 11
9: r1-mil1-it.as5405.net 23.545ms asymm 10
10: 2a0a:f980::1 27.238ms reached
Resume: pmtu 1500 hops 10 back 10 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 | * | - | - | - | |
| 3 | * | - | 70% | - | |
| 4 | 2001:7f8:b9::40:1 | 9.9ms | 0% | - | NA |
| 5 | 2a0a:f980::1 | 10.4ms | 0% | AS50877 | AIRBEAM-AS - Airbeam S.r.l., IT |
Rate-limited ICMPv6: hop 3 (loss between 5% and 95% across mtr cycles - the router replies but only sometimes).
tracepath -6
1?: [LOCALHOST] 0.031ms pmtu 1500
1: karsolink-01.net.karsolink.com 0.639ms
1: karsolink-01.net.karsolink.com 0.942ms
2: 2a12:d8c0:109f:121::a1 0.755ms
3: no reply
4: 2001:7f8:b9::40:1 10.103ms
5: 2a0a:f980::1 9.819ms reached
Resume: pmtu 1500 hops 5 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 | 0.3ms | 0%* | AS8038 | 6CONNECT - 6connect, Inc., US |
| 2 | ccr-to-fw-ccr1-gw-lju.6connect.com 2607:fae0:a000:2::2 | 0.6ms | 0%* | AS8038 | 6CONNECT - 6connect, Inc., US |
| 3 | * | - | 50% | - | |
| 4 | 2a00:ee0:1:10::2 | 1.3ms | 0% | AS5603 | SIOL-NET - Telekom Slovenije, d.d., SI |
| 5 | 2a11:4142:2002 | 1.2ms | 0% | - | |
| 6 | 2620:107:4008:e85::2 | 8.3ms | 0% | - | NA |
| 7 | 2a0a:f980::1 | 8.4ms | 0% | AS50877 | AIRBEAM-AS - Airbeam S.r.l., IT |
Rate-limited ICMPv6: hop 3 (loss between 5% and 95% across mtr cycles - the router replies but only sometimes).
tracepath -6
1?: [LOCALHOST] 0.015ms pmtu 9000
1: fw1-lju.6connect.com 0.821ms
1: fw1-lju.6connect.com 0.429ms
2: ccr-to-fw-ccr1-gw-lju.6connect.com 0.699ms
3: 2a00:ee1:800:9::1 2.423ms
4: 2a00:ee0:1:10::2 1.289ms asymm 3
5: 2a00:ee0:1:15::2 1.711ms pmtu 1500
5: 2a11:4142:2002:: 1.464ms asymm 6
6: 2620:107:4008:e85::2 8.207ms asymm 7
7: 2a0a:f980::1 8.807ms 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 | * | - | - | - | |
| 2 | 2a01:260:1::225 | 1.7ms | 0%* | AS34779 | T-2-AS - T-2, d.o.o., SI |
| 3 | 2a01-260-1-1--9c.core6.t-2.net 2a01:260:1:1::9c | 1.9ms | 0%* | AS34779 | T-2-AS - T-2, d.o.o., SI |
| 4 | 2a01-260-1-1--38.core6.t-2.net 2a01:260:1:1::38 | 2.1ms | 0%* | AS34779 | T-2-AS - T-2, d.o.o., SI |
| 5 | * | - | - | - | |
| 6 | ipacct.bix.bg 2001:7f8:58::7a37:0:1 | 24.8ms | - | - | NA |
| 7 | ipacct.bix.bg 2001:7f8:58::7a37:0:1 | 24.2ms | 0% | - | NA |
| 8 | 2a0a:f980::1 | 39.1ms | - | AS50877 | AIRBEAM-AS - Airbeam S.r.l., IT |
tracepath -6
1?: [LOCALHOST] 0.025ms pmtu 1500
1: 2a01:261:313:b814::1 0.961ms
2: 2a01:260:1::225 2.321ms
3: 2a01-260-1-1--9c.core6.t-2.net 2.547ms
4: 2a01-260-1-1--38.core6.t-2.net 3.098ms asymm 3
5: no reply
6: ipacct.bix.bg 24.965ms asymm 7
7: ipacct.bix.bg 25.385ms
8: 2a0a:f980::1 57.193ms reached
Resume: pmtu 1500 hops 8 back 11