IPv4 R&E Routing Table Report 18:50 GMT Sun 24 Mar, 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: 15483 Prefixes after maximum aggregation (per Origin AS): 8762 Deaggregation factor: 1.77 Unique aggregates announced (without unneeded subnets): 9731 Number of IPv4 prefixes with a valid ROA: 4508 Number of IPv4 prefixes with an invalid ROA: 2 Number of IPv4 prefixes with no ROA: 10973 Total ASes present in the Internet Routing Table: 2260 Prefixes per ASN: 6.85 Origin-only ASes present in the Internet Routing Table: 1949 Origin ASes announcing only one prefix: 850 Transit ASes present in the Internet Routing Table: 311 Transit-only ASes present in the Internet Routing Table: 62 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: 11 Number of instances of unregistered ASNs: 11 Number of 32-bit ASNs allocated by the RIRs: 43902 Number of 32-bit ASNs visible in the Routing Table: 525 Prefixes from 32-bit ASNs in the Routing Table: 1452 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: 182415360 Equivalent to 10 /8s, 223 /16s and 112 /24s Percentage of available address space announced: 4.9 Percentage of allocated address space announced: 4.9 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: 1861 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 4152 Total APNIC prefixes after maximum aggregation: 2197 APNIC Deaggregation factor: 1.89 Prefixes being announced from the APNIC address blocks: 4152 Unique aggregates announced from the APNIC address blocks: 2503 APNIC Region origin ASes present in the Internet Routing Table: 503 APNIC Prefixes per ASN: 8.25 APNIC Region origin ASes announcing only one prefix: 220 APNIC Region transit ASes present in the Internet Routing Table: 51 Average APNIC Region AS path length visible: 5.3 Max APNIC Region AS path length visible: 15 Number of APNIC region 32-bit ASNs visible in the Routing Table: 189 Number of APNIC addresses announced to Internet: 45216256 Equivalent to 2 /8s, 177 /16s and 242 /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: 5639 Total ARIN prefixes after maximum aggregation: 3125 ARIN Deaggregation factor: 1.80 Prefixes being announced from the ARIN address blocks: 5663 Unique aggregates announced from the ARIN address blocks: 3500 ARIN Region origin ASes present in the Internet Routing Table: 911 ARIN Prefixes per ASN: 6.22 ARIN Region origin ASes announcing only one prefix: 306 ARIN Region transit ASes present in the Internet Routing Table: 126 Average ARIN Region AS path length visible: 5.2 Max ARIN Region AS path length visible: 15 Number of ARIN region 32-bit ASNs visible in the Routing Table: 139 Number of ARIN addresses announced to Internet: 75457024 Equivalent to 4 /8s, 127 /16s and 98 /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: 3406 Total RIPE prefixes after maximum aggregation: 2738 RIPE Deaggregation factor: 1.24 Prefixes being announced from the RIPE address blocks: 3395 Unique aggregates announced from the RIPE address blocks: 2758 RIPE Region origin ASes present in the Internet Routing Table: 615 RIPE Prefixes per ASN: 5.52 RIPE Region origin ASes announcing only one prefix: 267 RIPE Region transit ASes present in the Internet Routing Table: 94 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: 130 Number of RIPE addresses announced to Internet: 55816192 Equivalent to 3 /8s, 83 /16s and 176 /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: 1316 Total LACNIC prefixes after maximum aggregation: 554 LACNIC Deaggregation factor: 2.38 Prefixes being announced from the LACNIC address blocks: 1314 Unique aggregates announced from the LACNIC address blocks: 748 LACNIC Region origin ASes present in the Internet Routing Table: 159 LACNIC Prefixes per ASN: 8.26 LACNIC Region origin ASes announcing only one prefix: 54 LACNIC Region transit ASes present in the Internet Routing Table: 24 Average LACNIC Region AS path length visible: 6.3 Max LACNIC Region AS path length visible: 15 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 65 Number of LACNIC addresses announced to Internet: 4211200 Equivalent to 0 /8s, 64 /16s and 66 /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: 959 Total AfriNIC prefixes after maximum aggregation: 139 AfriNIC Deaggregation factor: 6.90 Prefixes being announced from the AfriNIC address blocks: 959 Unique aggregates announced from the AfriNIC address blocks: 222 AfriNIC Region origin ASes present in the Internet Routing Table: 8 AfriNIC Prefixes per ASN: 119.88 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: 1714688 Equivalent to 0 /8s, 26 /16s and 42 /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 441 180 23 CSTNET-AS-AP Computer Network Informati 1237 192 74 142 KREONET-AS-KR KISTI, KR 4538 183 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 23570 59 5 11 INCHEON-AS-KR UNIVERSITY OF INCHEON, KR 2697 58 4 34 ERX-ERNET-AS Education and Research Net 1659 51 1450 34 ERX-TANET-ASN1 Taiwan Academic Network 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 141 18 4 NETBLK-RCOEK, US 81 127 521 30 NCREN, US 270 117 328 81 AS270, US 23024 109 7 19 OCDE, US 2920 102 34 7 LACOE, US 21976 79 51 18 NJEDGE-NET, US 237 72 527 44 MERIT-AS-14, US 3477 71 63 40 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 680 284 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 559 114 533 104 SWITCH Peering requests: peering@switch 1103 95 1503 83 SURFNET-NL SURFnet, The Netherlands, NL 2614 93 27 73 ROEDUNET, RO 137 81 676 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 44 68 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 28391 154 10 67 Universidad Juarez Autonoma de Tabasco, 11340 108 25 51 Red Universitaria Nacional, CL 1916 82 176 42 Rede Nacional de Ensino e Pesquisa, BR 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 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 544 80 53 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 544 80 53 KENET-AS, KE 7497 441 180 23 CSTNET-AS-AP Computer Network Informati 2018 381 319 71 TENET-1, ZA 680 284 1899 250 DFN Verein zur Foerderung eines Deutsch 5786 197 16 1 UPRENET, PR 1237 192 74 142 KREONET-AS-KR KISTI, KR 786 186 1767 183 JANET Jisc Services Limited, GB 4538 183 4193 75 ERX-CERNET-BKB China Education and Rese 58647 182 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 544 491 KENET-AS, KE 7497 441 418 CSTNET-AS-AP Computer Network Information Cente 2018 381 310 TENET-1, ZA 5786 197 196 UPRENET, PR 58647 182 180 KAGAWAU-AS Kagawa University, JP 18558 141 137 NETBLK-RCOEK, US 8895 134 129 ISU Internet Services Unit ISU, SA 55824 130 111 NKN-CORE-NW NKN Core Network, IN 4538 183 108 ERX-CERNET-BKB China Education and Research Net 81 127 97 NCREN, US 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 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 /14:34 /15:117 /16:1762 /17:383 /18:385 /19:483 /20:727 /21:759 /22:1204 /23:1337 /24:8260 /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 526 544 KENET-AS, KE 8895 129 134 ISU Internet Services Unit ISU, SA 23024 51 109 OCDE, US 32440 38 62 LONI, US 3267 35 77 RUNNET, RU 28614 32 38 Fundacao Universidade Regional de Blumenau, BR 200521 31 53 SEAP-AGE, ES 25977 30 44 HCCS, US 26898 24 32 LNOCA-ORG, US 36794 24 26 SCOCA, 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 38:6 41:186 42:16 44:4 45:33 46:5 47:1 49:9 50:1 58:10 59:11 60:6 61:3 62:9 63:3 64:18 65:1 66:22 67:41 68:2 69:17 70:2 72:7 74:16 76:41 77:11 78:2 79:10 80:12 81:23 82:4 83:7 84:6 85:30 86:4 87:1 89:10 91:45 92:2 93:3 94:2 95:2 97:1 98:2 101:5 103:265 104:76 108:2 109:7 111:10 114:24 116:8 117:61 118:19 119:20 121:15 122:8 123:8 124:42 125:5 128:62 129:35 130:82 131:39 132:50 133:157 134:44 136:196 137:51 138:57 139:4 140:31 141:3 143:17 144:23 145:1 146:133 147:26 148:193 149:11 150:39 151:9 152:134 153:14 154:23 155:60 156:68 157:20 158:37 159:114 160:30 161:10 162:12 163:73 164:14 165:47 166:1 167:8 168:121 169:6 170:87 171:1 172:3 173:6 175:25 176:8 177:6 179:9 180:15 181:1 182:8 185:46 186:3 187:17 188:13 189:3 190:17 191:13 192:1225 193:264 194:134 195:70 196:140 197:332 198:270 199:107 200:207 201:37 202:420 203:292 204:287 205:37 206:64 207:65 208:67 209:90 210:194 211:15 212:158 213:4 216:32 217:9 218:22 219:5 220:17 222:3 223:14 End of report