IPv4 R&E Routing Table Report 18:50 GMT Sat 10 Feb, 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: 17056 Prefixes after maximum aggregation (per Origin AS): 9447 Deaggregation factor: 1.81 Unique aggregates announced (without unneeded subnets): 10394 Number of IPv4 prefixes with a valid ROA: 5402 Number of IPv4 prefixes with an invalid ROA: 6 Number of IPv4 prefixes with no ROA: 11648 Total ASes present in the Internet Routing Table: 2506 Prefixes per ASN: 6.81 Origin-only ASes present in the Internet Routing Table: 2156 Origin ASes announcing only one prefix: 964 Transit ASes present in the Internet Routing Table: 350 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: 5.1 Max AS path length visible: 15 Max AS path prepend of ASN ( 47805) 11 Prefixes from unregistered ASNs in the Routing Table: 15 Number of instances of unregistered ASNs: 15 Number of 32-bit ASNs allocated by the RIRs: 43596 Number of 32-bit ASNs visible in the Routing Table: 584 Prefixes from 32-bit ASNs in the Routing Table: 1617 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: 1 Number of addresses announced to Internet: 192070656 Equivalent to 11 /8s, 114 /16s and 196 /24s Percentage of available address space announced: 5.2 Percentage of allocated address space announced: 5.2 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: 2049 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 4622 Total APNIC prefixes after maximum aggregation: 2241 APNIC Deaggregation factor: 2.06 Prefixes being announced from the APNIC address blocks: 4622 Unique aggregates announced from the APNIC address blocks: 2556 APNIC Region origin ASes present in the Internet Routing Table: 522 APNIC Prefixes per ASN: 8.85 APNIC Region origin ASes announcing only one prefix: 220 APNIC Region transit ASes present in the Internet Routing Table: 55 Average APNIC Region AS path length visible: 5.5 Max APNIC Region AS path length visible: 13 Number of APNIC region 32-bit ASNs visible in the Routing Table: 197 Number of APNIC addresses announced to Internet: 45412096 Equivalent to 2 /8s, 180 /16s and 239 /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: 6564 Total ARIN prefixes after maximum aggregation: 3629 ARIN Deaggregation factor: 1.81 Prefixes being announced from the ARIN address blocks: 6594 Unique aggregates announced from the ARIN address blocks: 3974 ARIN Region origin ASes present in the Internet Routing Table: 1060 ARIN Prefixes per ASN: 6.22 ARIN Region origin ASes announcing only one prefix: 373 ARIN Region transit ASes present in the Internet Routing Table: 142 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: 166 Number of ARIN addresses announced to Internet: 83223552 Equivalent to 4 /8s, 245 /16s and 228 /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: 3535 Total RIPE prefixes after maximum aggregation: 2853 RIPE Deaggregation factor: 1.24 Prefixes being announced from the RIPE address blocks: 3522 Unique aggregates announced from the RIPE address blocks: 2871 RIPE Region origin ASes present in the Internet Routing Table: 676 RIPE Prefixes per ASN: 5.21 RIPE Region origin ASes announcing only one prefix: 305 RIPE Region transit ASes present in the Internet Routing Table: 103 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: 148 Number of RIPE addresses announced to Internet: 57492480 Equivalent to 3 /8s, 109 /16s and 68 /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: 1351 Total LACNIC prefixes after maximum aggregation: 572 LACNIC Deaggregation factor: 2.36 Prefixes being announced from the LACNIC address blocks: 1348 Unique aggregates announced from the LACNIC address blocks: 768 LACNIC Region origin ASes present in the Internet Routing Table: 167 LACNIC Prefixes per ASN: 8.07 LACNIC Region origin ASes announcing only one prefix: 63 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: 71 Number of LACNIC addresses announced to Internet: 4210944 Equivalent to 0 /8s, 64 /16s and 65 /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: 969 Total AfriNIC prefixes after maximum aggregation: 140 AfriNIC Deaggregation factor: 6.92 Prefixes being announced from the AfriNIC address blocks: 969 Unique aggregates announced from the AfriNIC address blocks: 224 AfriNIC Region origin ASes present in the Internet Routing Table: 9 AfriNIC Prefixes per ASN: 107.67 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: 1731328 Equivalent to 0 /8s, 26 /16s and 107 /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 439 180 23 CSTNET-AS-AP Computer Network Informati 1237 194 74 142 KREONET-AS-KR KISTI, KR 4538 180 4193 75 ERX-CERNET-BKB China Education and Rese 58647 180 18 2 KAGAWAU-AS Kagawa University, JP 7575 177 329 119 AARNET-AS-AP Australian Academic and Re 55824 127 19 18 NKN-CORE-NW NKN Core Network, IN 4762 75 4 1 MAHIDOL-BORDER-AS Mahidol University, T 4621 70 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 144 507 93 CSUNET-NW, US 18558 141 18 4 NETBLK-RCOEK, US 81 126 521 30 NCREN, US 270 117 328 81 AS270, US 23024 109 7 22 OCDE, US 2920 103 34 7 LACOE, US 21976 81 51 19 NJEDGE-NET, US 1736 79 16 1 MU-AS, US 3477 73 63 42 NOAA-NWAVE, 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 1899 249 DFN Verein zur Foerderung eines Deutsch 786 184 1767 181 JANET Jisc Services Limited, GB 8895 133 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 93 27 73 ROEDUNET, RO 137 82 677 77 ASGARR Consortium GARR, IT 1930 79 88 74 RCCN Fundacao para a Ciencia e a Tecnol 3267 79 44 68 RUNNET, RU 553 78 462 78 BELWUE BelWue-Koordination, DE 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 28391 154 10 67 Universidad Juarez Autonoma de Tabasco, 1916 149 176 42 Rede Nacional de Ensino e Pesquisa, BR 11340 106 24 50 Red Universitaria Nacional, CL 271640 68 8 1 UNIVERSIDADE FEDERAL DE VICOSA, BR 4270 48 16 2 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 1251 35 32 25 FUNDACAO DE AMPARO A PESQUISA DO ESTADO 3596 35 4 3 Universidad Autonoma Metropolitana, MX 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 549 80 53 KENET-AS, KE 2018 382 319 71 TENET-1, ZA 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 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 549 80 53 KENET-AS, KE 7497 439 180 23 CSTNET-AS-AP Computer Network Informati 2018 382 319 71 TENET-1, ZA 680 283 1899 249 DFN Verein zur Foerderung eines Deutsch 5786 197 16 1 UPRENET, PR 1237 194 74 142 KREONET-AS-KR KISTI, KR 786 184 1767 181 JANET Jisc Services Limited, GB 4538 180 4193 75 ERX-CERNET-BKB China Education and Rese 58647 180 18 2 KAGAWAU-AS Kagawa University, JP 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 549 496 KENET-AS, KE 7497 439 416 CSTNET-AS-AP Computer Network Information Cente 2018 382 311 TENET-1, ZA 5786 197 196 UPRENET, PR 58647 180 178 KAGAWAU-AS Kagawa University, JP 18558 141 137 NETBLK-RCOEK, US 8895 133 128 ISU Internet Services Unit ISU, SA 55824 127 109 NKN-CORE-NW NKN Core Network, IN 1916 149 107 Rede Nacional de Ensino e Pesquisa, BR 4538 180 105 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 26303 UNALLOCATED 76.165.220.0/24 32440 LONI, US 26303 UNALLOCATED 76.165.221.0/24 32440 LONI, US 26303 UNALLOCATED 76.165.222.0/24 32440 LONI, US 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 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 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 /10:1 /11:1 /12:10 /13:19 /14:35 /15:120 /16:1878 /17:403 /18:410 /19:530 /20:792 /21:793 /22:1381 /23:1420 /24:9262 /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 531 549 KENET-AS, KE 8895 128 133 ISU Internet Services Unit ISU, SA 23024 52 109 OCDE, US 32440 38 62 LONI, US 3267 36 79 RUNNET, RU 46115 32 35 LUTHER, US 25977 30 44 HCCS, US 27609 29 45 USC-UNIVERSITY-HOSPITAL, US 40326 29 33 ECKERD-COLLEGE, US 200521 29 49 SEAP-AGE, ES 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 31:1 35:6 38:7 40:1 41:188 42:16 44:7 45:42 46:5 47:1 49:9 50:1 52:1 58:10 59:20 60:6 61:3 62:9 63:32 64:43 65:1 66:42 67:41 68:10 69:17 70:2 71:1 72:7 74:51 76:41 77:11 78:3 79:10 80:12 81:24 82:7 83:7 84:8 85:31 86:4 87:1 89:10 91:49 92:2 93:4 94:2 95:2 97:1 98:2 101:5 103:257 104:75 108:8 109:7 111:15 114:24 116:8 117:61 118:33 119:19 121:27 122:8 123:8 124:40 125:5 128:80 129:40 130:82 131:43 132:53 133:156 134:99 136:196 137:60 138:57 139:4 140:36 141:3 143:16 144:23 145:2 146:133 147:53 148:194 149:12 150:43 151:12 152:132 153:14 154:23 155:63 156:69 157:18 158:35 159:114 160:30 161:15 162:19 163:77 164:13 165:47 166:1 167:9 168:95 169:7 170:88 171:1 172:3 173:7 175:18 176:8 177:6 179:12 180:15 181:1 182:1 184:3 185:50 186:3 187:1 188:14 189:3 190:17 191:13 192:1322 193:266 194:143 195:73 196:141 197:335 198:322 199:143 200:274 201:21 202:619 203:424 204:310 205:53 206:105 207:78 208:67 209:91 210:195 211:15 212:160 213:5 216:61 217:10 218:22 219:5 220:17 222:3 223:14 End of report