IPv4 R&E Routing Table Report 18:50 GMT Sat 27 Apr, 2024 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: 16572 Prefixes after maximum aggregation (per Origin AS): 9293 Deaggregation factor: 1.78 Unique aggregates announced (without unneeded subnets): 10340 Number of IPv4 prefixes with a valid ROA: 4969 Number of IPv4 prefixes with an invalid ROA: 0 Number of IPv4 prefixes with no ROA: 11603 Total ASes present in the Internet Routing Table: 2368 Prefixes per ASN: 7.00 Origin-only ASes present in the Internet Routing Table: 2037 Origin ASes announcing only one prefix: 887 Transit ASes present in the Internet Routing Table: 331 Transit-only ASes present in the Internet Routing Table: 73 Paths with bogon ASNs present in the IPv4 Routing Table: 0 Average AS path length visible in the Internet Routing Table: 5.3 Max AS path length visible: 15 Max AS path prepend of ASN ( 47805) 11 Prefixes from unregistered ASNs in the Routing Table: 13 Number of instances of unregistered ASNs: 13 Number of 32-bit ASNs allocated by the RIRs: 44303 Number of 32-bit ASNs visible in the Routing Table: 531 Prefixes from 32-bit ASNs in the Routing Table: 1504 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: 0 Number of addresses announced to Internet: 185408256 Equivalent to 11 /8s, 13 /16s and 27 /24s Percentage of available address space announced: 5.0 Percentage of allocated address space announced: 5.0 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: 1945 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 4151 Total APNIC prefixes after maximum aggregation: 2152 APNIC Deaggregation factor: 1.93 Prefixes being announced from the APNIC address blocks: 4151 Unique aggregates announced from the APNIC address blocks: 2460 APNIC Region origin ASes present in the Internet Routing Table: 480 APNIC Prefixes per ASN: 8.65 APNIC Region origin ASes announcing only one prefix: 211 APNIC Region transit ASes present in the Internet Routing Table: 51 Average APNIC Region AS path length visible: 5.4 Max APNIC Region AS path length visible: 14 Number of APNIC region 32-bit ASNs visible in the Routing Table: 173 Number of APNIC addresses announced to Internet: 45075200 Equivalent to 2 /8s, 175 /16s and 203 /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: 6909 Total ARIN prefixes after maximum aggregation: 3820 ARIN Deaggregation factor: 1.81 Prefixes being announced from the ARIN address blocks: 6934 Unique aggregates announced from the ARIN address blocks: 4327 ARIN Region origin ASes present in the Internet Routing Table: 1046 ARIN Prefixes per ASN: 6.63 ARIN Region origin ASes announcing only one prefix: 362 ARIN Region transit ASes present in the Internet Routing Table: 138 Average ARIN Region AS path length visible: 5.7 Max ARIN Region AS path length visible: 15 Number of ARIN region 32-bit ASNs visible in the Routing Table: 167 Number of ARIN addresses announced to Internet: 78679296 Equivalent to 4 /8s, 176 /16s and 141 /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, 393216-402332 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: 3397 Total RIPE prefixes after maximum aggregation: 2724 RIPE Deaggregation factor: 1.25 Prefixes being announced from the RIPE address blocks: 3386 Unique aggregates announced from the RIPE address blocks: 2778 RIPE Region origin ASes present in the Internet Routing Table: 615 RIPE Prefixes per ASN: 5.51 RIPE Region origin ASes announcing only one prefix: 265 RIPE Region transit ASes present in the Internet Routing Table: 99 Average RIPE Region AS path length visible: 4.9 Max RIPE Region AS path length visible: 15 Number of RIPE region 32-bit ASNs visible in the Routing Table: 133 Number of RIPE addresses announced to Internet: 55733504 Equivalent to 3 /8s, 82 /16s and 109 /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: 1149 Total LACNIC prefixes after maximum aggregation: 450 LACNIC Deaggregation factor: 2.55 Prefixes being announced from the LACNIC address blocks: 1148 Unique aggregates announced from the LACNIC address blocks: 552 LACNIC Region origin ASes present in the Internet Routing Table: 143 LACNIC Prefixes per ASN: 8.03 LACNIC Region origin ASes announcing only one prefix: 46 LACNIC Region transit ASes present in the Internet Routing Table: 24 Average LACNIC Region AS path length visible: 5.9 Max LACNIC Region AS path length visible: 14 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 56 Number of LACNIC addresses announced to Internet: 4205312 Equivalent to 0 /8s, 64 /16s and 43 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-274844 + 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: 953 Total AfriNIC prefixes after maximum aggregation: 136 AfriNIC Deaggregation factor: 7.01 Prefixes being announced from the AfriNIC address blocks: 953 Unique aggregates announced from the AfriNIC address blocks: 223 AfriNIC Region origin ASes present in the Internet Routing Table: 8 AfriNIC Prefixes per ASN: 119.12 AfriNIC Region origin ASes announcing only one prefix: 3 AfriNIC Region transit ASes present in the Internet Routing Table: 4 Average AfriNIC Region AS path length visible: 1.9 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: 1714944 Equivalent to 0 /8s, 26 /16s and 43 /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 591 2162 464 SINET-AS Research Organization of Infor 7497 443 180 24 CSTNET-AS-AP Computer Network Informati 1237 189 74 142 KREONET-AS-KR KISTI, KR 4538 189 4193 75 ERX-CERNET-BKB China Education and Rese 58647 182 18 2 KAGAWAU-AS Kagawa University, JP 7575 170 329 114 AARNET-AS-AP Australian Academic and Re 55824 130 19 19 NKN-CORE-NW NKN Core Network, IN 4762 70 4 1 MAHIDOL-BORDER-AS Mahidol University, T 23570 59 5 11 INCHEON-AS-KR UNIVERSITY OF INCHEON, KR 2697 57 4 33 ERX-ERNET-AS Education and Research Net 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 2152 440 507 94 CSUNET-NW, US 376 201 162 151 RISQ-AS, CA 5786 197 16 1 UPRENET, PR 2920 174 34 7 LACOE, US 18558 139 18 4 NETBLK-RCOEK, US 81 127 521 30 NCREN, US 23024 108 7 22 OCDE, US 270 100 255 67 AS270, US 237 86 543 51 MERIT-AS-14, US 21976 79 51 18 NJEDGE-NET, 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 680 284 1899 250 DFN Verein zur Foerderung eines Deutsch 786 186 1767 183 JANET Jisc Services Limited, GB 8895 134 24 5 ISU Internet Services Unit ISU, SA 559 113 533 103 SWITCH Peering requests: peering@switch 1103 95 1503 83 SURFNET-NL SURFnet, The Netherlands, NL 2614 92 27 72 ROEDUNET, RO 137 82 677 77 ASGARR Consortium GARR, IT 1930 79 88 74 RCCN Fundacao para a Ciencia e a Tecnol 553 78 462 78 BELWUE BelWue-Koordination, DE 3267 77 27 65 RUNNET, RU 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 141 176 42 Rede Nacional de Ensino e Pesquisa, BR 11340 107 24 50 Red Universitaria Nacional, CL 271640 67 8 1 UNIVERSIDADE FEDERAL DE VICOSA, BR 4270 49 16 2 Red de Interconexion Universitaria, AR 19611 48 17 2 Associacao Antonio Vieira - Unisinos, B 2715 45 99 34 Fundacao Carlos Chagas Filho de Amparo 28614 38 2 2 Fundacao Universidade Regional de Blume 1251 35 32 25 FUNDACAO DE AMPARO A PESQUISA DO ESTADO 3596 34 2 2 Universidad Autonoma Metropolitana, MX 263683 33 10 21 Universidad de Costa Rica, CR 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 538 80 50 KENET-AS, KE 2018 381 319 71 TENET-1, ZA 6879 24 2 9 ENSTINET-, EG 327945 4 0 2 ILRI, KE 328225 3 0 1 Strathmore-University, KE 3208 1 2 1 ARN, DZ 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 591 2162 464 SINET-AS Research Organization of Infor 36914 538 80 50 KENET-AS, KE 7497 443 180 24 CSTNET-AS-AP Computer Network Informati 2152 440 507 94 CSUNET-NW, US 2018 381 319 71 TENET-1, ZA 680 284 1899 250 DFN Verein zur Foerderung eines Deutsch 376 201 162 151 RISQ-AS, CA 5786 197 16 1 UPRENET, PR 1237 189 74 142 KREONET-AS-KR KISTI, KR 4538 189 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 538 488 KENET-AS, KE 7497 443 419 CSTNET-AS-AP Computer Network Information Cente 2152 440 346 CSUNET-NW, US 2018 381 310 TENET-1, ZA 5786 197 196 UPRENET, PR 58647 182 180 KAGAWAU-AS Kagawa University, JP 2920 174 167 LACOE, US 18558 139 135 NETBLK-RCOEK, US 8895 134 129 ISU Internet Services Unit ISU, SA 4538 189 114 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 18838 UNALLOCATED 168.8.240.0/20 3480 PEACHNET-AS3480, US 18838 UNALLOCATED 168.9.0.0/20 3480 PEACHNET-AS3480, 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 Complete listing at https://bgp.nsrc.org/REN/KENET/data-badAS 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 /10:1 /11:1 /12:10 /13:19 /14:32 /15:117 /16:1810 /17:393 /18:407 /19:503 /20:742 /21:791 /22:1275 /23:1435 /24:9035 /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 520 538 KENET-AS, KE 8895 129 134 ISU Internet Services Unit ISU, SA 23024 51 108 OCDE, US 2152 50 440 CSUNET-NW, US 32440 38 63 LONI, US 3267 36 77 RUNNET, RU 28614 32 38 Fundacao Universidade Regional de Blumenau, BR 200521 32 54 SEAP-AGE, ES 25977 30 44 HCCS, US 26898 24 32 LNOCA-ORG, 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 14:90 23:4 24:3 31:1 35:4 38:9 41:183 42:16 44:4 45:24 46:5 47:1 49:9 50:3 58:16 59:11 60:6 61:3 62:8 63:3 64:19 65:1 66:25 67:41 68:2 69:18 70:2 72:7 74:16 76:41 77:11 78:2 79:10 80:12 81:23 82:7 83:7 84:3 85:27 86:5 87:1 89:11 91:45 92:2 93:3 94:2 95:2 96:5 97:1 98:2 101:5 103:226 104:77 108:2 109:7 114:24 116:8 117:61 118:19 119:21 121:11 122:8 123:8 124:42 125:5 128:64 129:35 130:83 131:39 132:62 133:157 134:51 136:196 137:68 138:57 139:5 140:35 141:3 142:23 143:13 144:23 145:1 146:132 147:32 148:39 149:12 150:42 151:9 152:133 153:14 154:23 155:60 156:133 157:20 158:32 159:115 160:30 161:12 162:13 163:68 164:14 165:47 166:1 167:9 168:121 169:6 170:87 171:1 172:3 173:7 175:18 176:8 177:6 178:1 179:10 180:15 182:1 185:46 186:3 187:18 188:13 189:3 191:13 192:1281 193:264 194:137 195:70 196:140 197:329 198:440 199:186 200:245 201:32 202:481 203:328 204:333 205:127 206:148 207:193 208:69 209:149 210:189 211:15 212:159 213:6 216:60 217:9 218:22 219:5 220:17 222:3 223:14 End of report