IPv4 R&E Routing Table Report 20:15 GMT Thu 07 Jul, 2022 IPv4 BGP Table (R&E) as seen at KREONet2. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/KREONet2/ Analysis Summary ---------------- BGP routing table entries examined: 20111 Prefixes after maximum aggregation (per Origin AS): 10910 Deaggregation factor: 1.84 Unique aggregates announced (without unneeded subnets): 12136 Number of IPv4 prefixes with a valid ROA: 5250 Number of IPv4 prefixes with an invalid ROA: 52 Number of IPv4 prefixes with no ROA: 14809 Total ASes present in the Internet Routing Table: 2813 Prefixes per ASN: 7.15 Origin-only ASes present in the Internet Routing Table: 2416 Origin ASes announcing only one prefix: 1097 Transit ASes present in the Internet Routing Table: 397 Transit-only ASes present in the Internet Routing Table: 76 Paths with bogon ASNs present in the IPv4 Routing Table: 2 Average AS path length visible in the Internet Routing Table: 4.0 Max AS path length visible: 15 Max AS path prepend of ASN ( 10497) 11 Prefixes from unregistered ASNs in the Routing Table: 14 Number of instances of unregistered ASNs: 14 Number of 32-bit ASNs allocated by the RIRs: 39747 Number of 32-bit ASNs visible in the Routing Table: 639 Prefixes from 32-bit ASNs in the Routing Table: 1721 Number of bogon 32-bit ASNs visible in the Routing Table: 0 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 2 Number of addresses announced to Internet: 220221491 Equivalent to 13 /8s, 32 /16s and 80 /24s Percentage of available address space announced: 5.9 Percentage of allocated address space announced: 5.9 Percentage of available address space allocated: 100.0 Percentage of address space in use by end-sites: 99.6 Total number of prefixes smaller than registry allocations: 2618 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 5129 Total APNIC prefixes after maximum aggregation: 2421 APNIC Deaggregation factor: 2.12 Prefixes being announced from the APNIC address blocks: 4973 Unique aggregates announced from the APNIC address blocks: 2697 APNIC Region origin ASes present in the Internet Routing Table: 590 APNIC Prefixes per ASN: 8.43 APNIC Region origin ASes announcing only one prefix: 256 APNIC Region transit ASes present in the Internet Routing Table: 77 Average APNIC Region AS path length visible: 4.0 Max APNIC Region AS path length visible: 15 Number of APNIC region 32-bit ASNs visible in the Routing Table: 233 Number of APNIC addresses announced to Internet: 47046764 Equivalent to 2 /8s, 205 /16s and 224 /24s APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431 (pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319, 58368-59391, 63488-64098, 64297-64395, 131072-151865 APNIC Address Blocks 1/8, 14/8, 27/8, 36/8, 39/8, 42/8, 43/8, 49/8, 58/8, 59/8, 60/8, 61/8, 101/8, 103/8, 106/8, 110/8, 111/8, 112/8, 113/8, 114/8, 115/8, 116/8, 117/8, 118/8, 119/8, 120/8, 121/8, 122/8, 123/8, 124/8, 125/8, 126/8, 133/8, 150/8, 153/8, 163/8, 171/8, 175/8, 180/8, 182/8, 183/8, 202/8, 203/8, 210/8, 211/8, 218/8, 219/8, 220/8, 221/8, 222/8, 223/8, ARIN Region Analysis Summary ---------------------------- Prefixes being announced by ARIN Region ASes: 8949 Total ARIN prefixes after maximum aggregation: 4827 ARIN Deaggregation factor: 1.85 Prefixes being announced from the ARIN address blocks: 9122 Unique aggregates announced from the ARIN address blocks: 5505 ARIN Region origin ASes present in the Internet Routing Table: 1236 ARIN Prefixes per ASN: 7.38 ARIN Region origin ASes announcing only one prefix: 443 ARIN Region transit ASes present in the Internet Routing Table: 161 Average ARIN Region AS path length visible: 4.0 Max ARIN Region AS path length visible: 14 Number of ARIN region 32-bit ASNs visible in the Routing Table: 179 Number of ARIN addresses announced to Internet: 108167777 Equivalent to 6 /8s, 114 /16s and 130 /24s ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106 (pre-ERX allocations) 2138-2584, 2615-2772, 2823-2829, 2880-3153 3354-4607, 4865-5119, 5632-6655, 6912-7466 7723-8191, 10240-12287, 13312-15359, 16384-17407 18432-20479, 21504-23551, 25600-26591, 26624-27647, 29696-30719, 31744-33791 35840-36863, 39936-40959, 46080-47103 53248-55295, 62464-63487, 64198-64296, 393216-401308 ARIN Address Blocks 3/8, 4/8, 6/8, 7/8, 8/8, 9/8, 11/8, 12/8, 13/8, 15/8, 16/8, 17/8, 18/8, 19/8, 20/8, 21/8, 22/8, 23/8, 24/8, 26/8, 28/8, 29/8, 30/8, 32/8, 33/8, 34/8, 35/8, 38/8, 40/8, 44/8, 47/8, 48/8, 50/8, 52/8, 53/8, 54/8, 55/8, 56/8, 57/8, 63/8, 64/8, 65/8, 66/8, 67/8, 68/8, 69/8, 70/8, 71/8, 72/8, 73/8, 74/8, 75/8, 76/8, 96/8, 97/8, 98/8, 99/8, 100/8, 104/8, 107/8, 108/8, 128/8, 129/8, 130/8, 131/8, 132/8, 134/8, 135/8, 136/8, 137/8, 138/8, 139/8, 140/8, 142/8, 143/8, 144/8, 146/8, 147/8, 148/8, 149/8, 152/8, 155/8, 156/8, 157/8, 158/8, 159/8, 160/8, 161/8, 162/8, 164/8, 165/8, 166/8, 167/8, 168/8, 169/8, 170/8, 172/8, 173/8, 174/8, 184/8, 192/8, 198/8, 199/8, 204/8, 205/8, 206/8, 207/8, 208/8, 209/8, 214/8, 215/8, 216/8, RIPE Region Analysis Summary ---------------------------- Prefixes being announced by RIPE Region ASes: 3629 Total RIPE prefixes after maximum aggregation: 2874 RIPE Deaggregation factor: 1.26 Prefixes being announced from the RIPE address blocks: 3626 Unique aggregates announced from the RIPE address blocks: 2877 RIPE Region origin ASes present in the Internet Routing Table: 691 RIPE Prefixes per ASN: 5.25 RIPE Region origin ASes announcing only one prefix: 308 RIPE Region transit ASes present in the Internet Routing Table: 104 Average RIPE Region AS path length visible: 3.9 Max RIPE Region AS path length visible: 15 Number of RIPE region 32-bit ASNs visible in the Routing Table: 135 Number of RIPE addresses announced to Internet: 58114374 Equivalent to 3 /8s, 118 /16s and 193 /24s RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614 (pre-ERX allocations) 2773-2822, 2830-2879, 3154-3353, 5377-5631 6656-6911, 8192-9215, 12288-13311, 15360-16383 20480-21503, 24576-25599, 28672-29695 30720-31743, 33792-35839, 38912-39935 40960-45055, 47104-52223, 56320-58367 59392-61439, 61952-62463, 64396-64495 196608-213403 RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8, 62/8, 77/8, 78/8, 79/8, 80/8, 81/8, 82/8, 83/8, 84/8, 85/8, 86/8, 87/8, 88/8, 89/8, 90/8, 91/8, 92/8, 93/8, 94/8, 95/8, 109/8, 141/8, 145/8, 151/8, 176/8, 178/8, 185/8, 188/8, 193/8, 194/8, 195/8, 212/8, 213/8, 217/8, LACNIC Region Analysis Summary ------------------------------ Prefixes being announced by LACNIC Region ASes: 1450 Total LACNIC prefixes after maximum aggregation: 572 LACNIC Deaggregation factor: 2.53 Prefixes being announced from the LACNIC address blocks: 1447 Unique aggregates announced from the LACNIC address blocks: 764 LACNIC Region origin ASes present in the Internet Routing Table: 164 LACNIC Prefixes per ASN: 8.82 LACNIC Region origin ASes announcing only one prefix: 65 LACNIC Region transit ASes present in the Internet Routing Table: 24 Average LACNIC Region AS path length visible: 5.0 Max LACNIC Region AS path length visible: 12 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 65 Number of LACNIC addresses announced to Internet: 4232480 Equivalent to 0 /8s, 64 /16s and 149 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-273820 + ERX transfers LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8, 191/8, 200/8, 201/8, AfriNIC Region Analysis Summary ------------------------------- Prefixes being announced by AfriNIC Region ASes: 940 Total AfriNIC prefixes after maximum aggregation: 202 AfriNIC Deaggregation factor: 4.65 Prefixes being announced from the AfriNIC address blocks: 941 Unique aggregates announced from the AfriNIC address blocks: 291 AfriNIC Region origin ASes present in the Internet Routing Table: 50 AfriNIC Prefixes per ASN: 18.82 AfriNIC Region origin ASes announcing only one prefix: 25 AfriNIC Region transit ASes present in the Internet Routing Table: 10 Average AfriNIC Region AS path length visible: 3.7 Max AfriNIC Region AS path length visible: 13 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 27 Number of AfriNIC addresses announced to Internet: 2659584 Equivalent to 0 /8s, 40 /16s and 149 /24s AfriNIC AS Blocks 36864-37887, 327680-329727 & ERX transfers AfriNIC Address Blocks 41/8, 45/8, 102/8, 105/8, 154/8, 196/8, 197/8, APNIC Region per AS prefix count summary ---------------------------------------- ASN No of nets /20 equiv MaxAgg Description 2907 620 2140 456 SINET-AS Research Organization of Infor 7497 433 182 24 CSTNET-AS-AP Computer Network Informati 45102 279 467 89 ALIBABA-CN-NET Alibaba US Technology Co 1237 194 74 135 KREONET-AS-KR KISTI, KR 4538 189 4192 73 ERX-CERNET-BKB China Education and Rese 7575 176 330 122 AARNET-AS-AP Australian Academic and Re 58647 175 18 2 KAGAWAU-AS Kagawa University, JP 55824 116 18 11 NKN-CORE-NW NKN Core Network, IN 4621 78 37 10 UNINET-AS-AP UNINET-, TH 4762 65 4 1 MAHIDOL-BORDER-AS Mahidol University, T Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 15169 743 3282 69 GOOGLE, US 376 203 178 152 RISQ-AS, CA 5786 200 16 1 UPRENET, PR 6939 165 120 114 HURRICANE, US 2152 157 507 89 CSUNET-NW, US 18558 134 18 4 NETBLK-RCOEK, US 270 121 329 86 AS270, US 23024 114 7 17 OCDE, US 2920 111 34 7 LACOE, US 32531 90 6 60 FORDHAM-UNIVERSITY, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 680 285 1967 251 DFN Verein zur Foerderung eines Deutsch 786 187 1775 184 JANET Jisc Services Limited, GB 8895 179 24 4 ISU Internet Services Unit ISU, SA 559 115 550 106 SWITCH Peering requests: peering@switch 1103 100 1520 86 SURFNET-NL SURFnet, The Netherlands, NL 2614 96 27 76 ROEDUNET, RO 137 82 677 77 ASGARR Consortium GARR, IT 553 73 449 73 BELWUE BelWue-Koordination, DE 2200 64 599 59 FR-RENATER Reseau National de telecommu 3267 63 64 27 RUNNET, RU Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 1916 176 208 45 Rede Nacional de Ensino e Pesquisa, BR 28391 152 10 66 Universidad Juarez Autonoma de Tabasco, 11340 95 24 54 Red Universitaria Nacional, CL 2715 59 102 39 Fundacao Carlos Chagas Filho de Amparo 1251 58 37 19 FUNDACAO DE AMPARO A PESQUISA DO ESTADO 19611 48 17 2 Associacao Antonio Vieira - Unisinos, B 61468 45 3 15 CEDIA, EC 4270 43 16 1 Red de Interconexion Universitaria, AR 28571 41 40 18 UNIVERSIDADE DE SAO PAULO, BR 28614 37 2 2 Fundacao Universidade Regional de Blume Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 2018 377 319 73 TENET-1, ZA 36914 224 82 3 KENET-AS, KE 2561 67 4 32 EUN, EG 8094 48 48 15 PUKNET, ZA 327687 38 28 3 RENU, UG 327700 33 16 1 MoRENet, MZ 6879 24 2 9 ENSTINET-, EG 37182 18 8 1 TERNET, TZ 37074 13 8 2 UG-AS, GH 37501 11 49 6 UOFS, ZA Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 15169 743 3282 69 GOOGLE, US 2907 620 2140 456 SINET-AS Research Organization of Infor 7497 433 182 24 CSTNET-AS-AP Computer Network Informati 2018 377 319 73 TENET-1, ZA 680 285 1967 251 DFN Verein zur Foerderung eines Deutsch 45102 279 467 89 ALIBABA-CN-NET Alibaba US Technology Co 36914 224 82 3 KENET-AS, KE 376 203 178 152 RISQ-AS, CA 5786 200 16 1 UPRENET, PR 1237 194 74 135 KREONET-AS-KR KISTI, KR Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 7497 433 409 CSTNET-AS-AP Computer Network Information Cente 2018 377 304 TENET-1, ZA 36914 224 221 KENET-AS, KE 5786 200 199 UPRENET, PR 45102 279 190 ALIBABA-CN-NET Alibaba US Technology Co., Ltd., 8895 179 175 ISU Internet Services Unit ISU, SA 58647 175 173 KAGAWAU-AS Kagawa University, JP 2907 620 164 SINET-AS Research Organization of Information a 1916 176 131 Rede Nacional de Ensino e Pesquisa, BR 18558 134 130 NETBLK-RCOEK, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 394607 UNALLOCATED 104.249.65.0/24 23024 OCDE, US 22063 UNALLOCATED 153.10.0.0/16 2152 CSUNET-NW, US 22226 UNALLOCATED 156.1.0.0/16 2152 CSUNET-NW, US 19658 UNALLOCATED 199.27.241.0/24 11096 FLORIDANET, US 395514 UNALLOCATED 205.213.88.0/24 2381 WISCNET1-AS, US 27316 UNALLOCATED 205.221.78.0/23 6122 ICN-AS, US 27316 UNALLOCATED 207.165.229.0/24 6122 ICN-AS, US 27316 UNALLOCATED 207.165.238.0/23 6122 ICN-AS, US 27316 UNALLOCATED 209.56.188.0/23 6122 ICN-AS, US 394607 UNALLOCATED 216.100.93.0/24 23024 OCDE, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-badAS Prefixes from the Special Purpose Address Registry (Global) ----------------------------------------------------------- Prefix Origin AS Description 192.88.99.0/24 1103 SURFNET-NL SURFnet, The Netherlands, NL Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-spar Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 192.31.196.0/24 Origin: 112 UNASSIGNED 192.31.196.0/24 Transit: 1103 SURFNET-NL SURFnet, The Netherlands, NL 192.88.99.0/24 Origin: 1103 SURFNET-NL SURFnet, The Netherlands, NL 192.88.99.0/24 Transit: 17579 KREONET2-AS-KR KISTI, KR Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-add-IANA Number of prefixes announced per prefix length (Global) ------------------------------------------------------- /1:0 /2:0 /3:0 /4:0 /5:0 /6:0 /7:0 /8:0 /9:1 /10:2 /11:2 /12:12 /13:28 /14:61 /15:129 /16:2081 /17:452 /18:490 /19:723 /20:894 /21:891 /22:1469 /23:1633 /24:10887 /25:87 /26:57 /27:87 /28:28 /29:18 /30:19 /31:0 /32:60 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 15169 273 743 GOOGLE, US 36914 211 224 KENET-AS, KE 8895 174 179 ISU Internet Services Unit ISU, SA 32440 74 89 LONI, US 6939 68 165 HURRICANE, US 23024 53 114 OCDE, US 25977 31 45 HCCS, US 28614 31 37 Fundacao Universidade Regional de Blumenau, BR 46115 31 34 LUTHER, US 263282 30 37 FUNDACAO UNIVERSIDADE DO OESTE DE SANTA CATARIN Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:3 5:17 8:8 12:1 14:86 18:46 23:16 24:3 31:7 34:2 35:5 37:8 38:9 40:1 41:125 42:15 43:1 44:5 45:39 46:5 47:40 49:10 50:4 52:1 58:11 59:21 60:4 61:3 62:8 63:39 64:84 65:8 66:58 67:45 68:8 69:19 70:10 71:1 72:18 74:114 76:35 77:7 78:3 79:10 80:20 81:28 82:7 83:6 84:9 85:46 86:10 87:1 88:1 89:10 91:45 92:1 93:10 94:4 95:4 96:5 97:1 98:2 101:8 102:13 103:329 104:76 107:16 108:43 109:10 110:6 111:17 114:23 116:6 117:61 118:33 119:24 121:28 122:8 123:8 124:39 125:4 128:86 129:38 130:92 131:65 132:58 133:145 134:100 136:200 137:75 138:10 139:5 140:41 141:1 142:151 143:31 144:25 145:2 146:130 147:56 148:192 149:12 150:130 151:6 152:79 153:13 154:29 155:53 156:66 157:28 158:44 159:115 160:26 161:28 162:22 163:58 164:15 165:57 166:2 167:17 168:124 169:10 170:68 172:91 173:86 175:31 176:8 177:11 179:10 180:21 181:1 182:4 184:7 185:48 186:3 187:19 188:13 189:5 190:33 191:36 192:1427 193:315 194:149 195:86 196:162 197:130 198:516 199:263 200:238 201:38 202:631 203:438 204:334 205:170 206:195 207:173 208:76 209:132 210:185 211:13 212:150 213:5 216:129 217:12 218:22 219:12 220:17 222:6 223:6 End of report