IPv4 R&E Routing Table Report 18:50 GMT Wed 06 Dec, 2023 IPv4 BGP Table (R&E) as seen at KENET. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/KENET/ Analysis Summary ---------------- BGP routing table entries examined: 17204 Prefixes after maximum aggregation (per Origin AS): 9485 Deaggregation factor: 1.81 Unique aggregates announced (without unneeded subnets): 10386 Number of IPv4 prefixes with a valid ROA: 5144 Number of IPv4 prefixes with an invalid ROA: 7 Number of IPv4 prefixes with no ROA: 12053 Total ASes present in the Internet Routing Table: 2547 Prefixes per ASN: 6.75 Origin-only ASes present in the Internet Routing Table: 2195 Origin ASes announcing only one prefix: 985 Transit ASes present in the Internet Routing Table: 352 Transit-only ASes present in the Internet Routing Table: 69 Paths with bogon ASNs present in the IPv4 Routing Table: 0 Average AS path length visible in the Internet Routing Table: 5.2 Max AS path length visible: 15 Max AS path prepend of ASN ( 47805) 11 Prefixes from unregistered ASNs in the Routing Table: 11 Number of instances of unregistered ASNs: 11 Number of 32-bit ASNs allocated by the RIRs: 43163 Number of 32-bit ASNs visible in the Routing Table: 592 Prefixes from 32-bit ASNs in the Routing Table: 1605 Number of bogon 32-bit ASNs visible in the Routing Table: 0 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 2 Number of addresses announced to Internet: 195214080 Equivalent to 11 /8s, 162 /16s and 187 /24s Percentage of available address space announced: 5.3 Percentage of allocated address space announced: 5.3 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: 2100 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 4658 Total APNIC prefixes after maximum aggregation: 2276 APNIC Deaggregation factor: 2.05 Prefixes being announced from the APNIC address blocks: 4657 Unique aggregates announced from the APNIC address blocks: 2588 APNIC Region origin ASes present in the Internet Routing Table: 541 APNIC Prefixes per ASN: 8.61 APNIC Region origin ASes announcing only one prefix: 232 APNIC Region transit ASes present in the Internet Routing Table: 59 Average APNIC Region AS path length visible: 5.5 Max APNIC Region AS path length visible: 15 Number of APNIC region 32-bit ASNs visible in the Routing Table: 209 Number of APNIC addresses announced to Internet: 45629952 Equivalent to 2 /8s, 184 /16s and 66 /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, 131072-153913 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: 6529 Total ARIN prefixes after maximum aggregation: 3630 ARIN Deaggregation factor: 1.80 Prefixes being announced from the ARIN address blocks: 6554 Unique aggregates announced from the ARIN address blocks: 3921 ARIN Region origin ASes present in the Internet Routing Table: 1063 ARIN Prefixes per ASN: 6.17 ARIN Region origin ASes announcing only one prefix: 377 ARIN Region transit ASes present in the Internet Routing Table: 141 Average ARIN Region AS path length visible: 5.3 Max ARIN Region AS path length visible: 15 Number of ARIN region 32-bit ASNs visible in the Routing Table: 164 Number of ARIN addresses announced to Internet: 85755392 Equivalent to 5 /8s, 28 /16s and 134 /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: 3583 Total RIPE prefixes after maximum aggregation: 2865 RIPE Deaggregation factor: 1.25 Prefixes being announced from the RIPE address blocks: 3570 Unique aggregates announced from the RIPE address blocks: 2889 RIPE Region origin ASes present in the Internet Routing Table: 698 RIPE Prefixes per ASN: 5.11 RIPE Region origin ASes announcing only one prefix: 313 RIPE Region transit ASes present in the Internet Routing Table: 103 Average RIPE Region AS path length visible: 5.0 Max RIPE Region AS path length visible: 15 Number of RIPE region 32-bit ASNs visible in the Routing Table: 149 Number of RIPE addresses announced to Internet: 57945088 Equivalent to 3 /8s, 116 /16s and 44 /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 196608-216475 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: 1431 Total LACNIC prefixes after maximum aggregation: 569 LACNIC Deaggregation factor: 2.51 Prefixes being announced from the LACNIC address blocks: 1429 Unique aggregates announced from the LACNIC address blocks: 763 LACNIC Region origin ASes present in the Internet Routing Table: 165 LACNIC Prefixes per ASN: 8.66 LACNIC Region origin ASes announcing only one prefix: 61 LACNIC Region transit ASes present in the Internet Routing Table: 27 Average LACNIC Region AS path length visible: 6.1 Max LACNIC Region AS path length visible: 14 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 68 Number of LACNIC addresses announced to Internet: 4152064 Equivalent to 0 /8s, 63 /16s and 91 /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: 992 Total AfriNIC prefixes after maximum aggregation: 136 AfriNIC Deaggregation factor: 7.29 Prefixes being announced from the AfriNIC address blocks: 992 Unique aggregates announced from the AfriNIC address blocks: 223 AfriNIC Region origin ASes present in the Internet Routing Table: 9 AfriNIC Prefixes per ASN: 110.22 AfriNIC Region origin ASes announcing only one prefix: 2 AfriNIC Region transit ASes present in the Internet Routing Table: 4 Average AfriNIC Region AS path length visible: 2.0 Max AfriNIC Region AS path length visible: 6 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 2 Number of AfriNIC addresses announced to Internet: 1731072 Equivalent to 0 /8s, 26 /16s and 106 /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 593 2162 465 SINET-AS Research Organization of Infor 7497 437 180 23 CSTNET-AS-AP Computer Network Informati 1237 193 74 142 KREONET-AS-KR KISTI, KR 4538 183 4193 75 ERX-CERNET-BKB China Education and Rese 58647 180 18 2 KAGAWAU-AS Kagawa University, JP 7575 176 329 119 AARNET-AS-AP Australian Academic and Re 55824 126 19 17 NKN-CORE-NW NKN Core Network, IN 4762 75 4 1 MAHIDOL-BORDER-AS Mahidol University, T 4621 69 37 10 UNINET-AS-AP UNINET-, TH 9411 66 16 2 NONTRINET-AS-AP Kasetsart University, T Complete listing at https://bgp.nsrc.org/REN/KENET/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 5786 197 16 1 UPRENET, PR 2152 145 507 94 CSUNET-NW, US 18558 137 18 4 NETBLK-RCOEK, US 81 127 521 30 NCREN, US 270 118 329 82 AS270, US 23024 109 7 22 OCDE, US 2920 101 34 7 LACOE, US 21976 80 51 18 NJEDGE-NET, US 1736 79 16 1 MU-AS, US 237 72 1382 28 MERIT-AS-14, US Complete listing at https://bgp.nsrc.org/REN/KENET/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 680 283 1903 249 DFN Verein zur Foerderung eines Deutsch 786 185 1767 182 JANET Jisc Services Limited, GB 8895 131 24 5 ISU Internet Services Unit ISU, SA 559 114 533 104 SWITCH Peering requests: peering@switch 1103 95 1503 83 SURFNET-NL SURFnet, The Netherlands, NL 2614 94 27 74 ROEDUNET, RO 137 82 677 77 ASGARR Consortium GARR, IT 553 76 462 76 BELWUE BelWue-Koordination, DE 1930 65 81 60 RCCN Fundacao para a Ciencia e a Tecnol 2200 63 598 58 FR-RENATER Reseau National de telecommu Complete listing at https://bgp.nsrc.org/REN/KENET/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 1916 210 176 42 Rede Nacional de Ensino e Pesquisa, BR 28391 154 10 67 Universidad Juarez Autonoma de Tabasco, 11340 105 24 49 Red Universitaria Nacional, CL 271640 68 8 1 UNIVERSIDADE FEDERAL DE VICOSA, BR 4270 50 17 3 Red de Interconexion Universitaria, AR 19611 48 17 2 Associacao Antonio Vieira - Unisinos, B 2715 44 99 34 Fundacao Carlos Chagas Filho de Amparo 61468 43 3 14 CEDIA, EC 28614 38 2 2 Fundacao Universidade Regional de Blume 1251 35 32 25 FUNDACAO DE AMPARO A PESQUISA DO ESTADO Complete listing at https://bgp.nsrc.org/REN/KENET/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 36914 543 80 49 KENET-AS, KE 2018 380 319 71 TENET-1, ZA 3208 32 2 1 ARN, DZ 6879 24 2 9 ENSTINET-, EG 30983 4 4 1 MARWAN-AS, MA 327945 4 0 2 ILRI, KE 328225 3 0 1 Strathmore-University, KE 6149 1 0 1 TENET-2, ZA 37717 1 16 1 EL-Khawarizmi, TN Complete listing at https://bgp.nsrc.org/REN/KENET/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 2907 593 2162 465 SINET-AS Research Organization of Infor 36914 543 80 49 KENET-AS, KE 7497 437 180 23 CSTNET-AS-AP Computer Network Informati 2018 380 319 71 TENET-1, ZA 680 283 1903 249 DFN Verein zur Foerderung eines Deutsch 1916 210 176 42 Rede Nacional de Ensino e Pesquisa, BR 5786 197 16 1 UPRENET, PR 1237 193 74 142 KREONET-AS-KR KISTI, KR 786 185 1767 182 JANET Jisc Services Limited, GB 4538 183 4193 75 ERX-CERNET-BKB China Education and Rese Complete listing at https://bgp.nsrc.org/REN/KENET/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 36914 543 494 KENET-AS, KE 7497 437 414 CSTNET-AS-AP Computer Network Information Cente 2018 380 309 TENET-1, ZA 5786 197 196 UPRENET, PR 58647 180 178 KAGAWAU-AS Kagawa University, JP 1916 210 168 Rede Nacional de Ensino e Pesquisa, BR 18558 137 133 NETBLK-RCOEK, US 8895 131 126 ISU Internet Services Unit ISU, SA 55824 126 109 NKN-CORE-NW NKN Core Network, IN 4538 183 108 ERX-CERNET-BKB China Education and Research Net Complete listing at https://bgp.nsrc.org/REN/KENET/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 11570 UNALLOCATED 192.94.216.0/24 40498 ABQG, US 11570 UNALLOCATED 192.207.226.0/24 40498 ABQG, US 11570 UNALLOCATED 198.59.106.0/24 40498 ABQG, US 11570 UNALLOCATED 198.59.107.0/24 40498 ABQG, US 11570 UNALLOCATED 198.59.108.0/24 40498 ABQG, US 11570 UNALLOCATED 198.59.188.0/24 40498 ABQG, US 11570 UNALLOCATED 198.59.189.0/24 40498 ABQG, US 11570 UNALLOCATED 198.59.190.0/24 40498 ABQG, US 11570 UNALLOCATED 204.134.85.0/24 40498 ABQG, US Complete listing at https://bgp.nsrc.org/REN/KENET/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 192.31.196.0/24 Origin: 112 RESERVED, ZZ 192.31.196.0/24 Transit: 1103 SURFNET-NL SURFnet, The Netherlands, NL 202.58.231.0/24 Origin: 134096 EHEALTHNSW-AS-AP eHealth NSW, AU 202.58.231.0/24 Transit: 7575 AARNET-AS-AP Australian Academic and Res Complete listing at https://bgp.nsrc.org/REN/KENET/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 /11:1 /12:10 /13:19 /14:35 /15:121 /16:1893 /17:406 /18:405 /19:541 /20:798 /21:788 /22:1374 /23:1413 /24:9397 /25:0 /26:0 /27:0 /28:0 /29:0 /30:0 /31:0 /32:0 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 36914 525 543 KENET-AS, KE 8895 126 131 ISU Internet Services Unit ISU, SA 23024 52 109 OCDE, US 32440 38 62 LONI, US 200521 33 56 SEAP-AGE, ES 28614 32 38 Fundacao Universidade Regional de Blumenau, BR 46115 32 35 LUTHER, US 25977 30 44 HCCS, US 27609 29 45 USC-UNIVERSITY-HOSPITAL, US 40326 29 33 ECKERD-COLLEGE, US Complete listing at https://bgp.nsrc.org/REN/KENET/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:2 5:15 8:2 12:1 14:88 23:4 24:3 31:7 35:6 38:7 40:1 41:189 42:16 44:7 45:41 46:5 47:1 49:9 50:1 52:1 58:12 59:20 60:5 61:3 62:11 63:32 64:47 65:1 66:36 67:41 68:10 69:17 70:2 71:1 72:7 74:51 76:41 77:9 78:3 79:10 80:12 81:25 82:7 83:7 84:8 85:26 86:4 87:1 89:10 91:50 92:2 93:4 94:4 95:2 97:1 98:2 101:5 103:276 104:72 108:8 109:7 111:15 114:23 116:6 117:61 118:33 119:18 121:29 122:8 123:8 124:40 125:4 128:85 129:43 130:82 131:43 132:57 133:155 134:99 136:196 137:49 138:9 139:4 140:38 141:3 143:16 144:25 145:2 146:132 147:54 148:193 149:11 150:44 151:12 152:133 153:14 154:23 155:63 156:67 157:18 158:34 159:114 160:30 161:15 162:19 163:76 164:13 165:47 166:1 167:9 168:118 169:8 170:76 171:1 172:3 173:7 175:18 176:8 177:6 179:12 180:15 181:1 182:1 184:2 185:61 186:3 187:17 188:14 189:3 190:19 191:13 192:1334 193:300 194:139 195:97 196:139 197:328 198:324 199:146 200:322 201:38 202:624 203:415 204:305 205:54 206:104 207:86 208:68 209:91 210:194 211:14 212:159 213:5 216:64 217:9 218:22 219:6 220:16 222:3 223:14 End of report