IPv4 R&E Routing Table Report 18:50 GMT Mon 04 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: 15518 Prefixes after maximum aggregation (per Origin AS): 8768 Deaggregation factor: 1.77 Unique aggregates announced (without unneeded subnets): 9747 Number of IPv4 prefixes with a valid ROA: 5091 Number of IPv4 prefixes with an invalid ROA: 6 Number of IPv4 prefixes with no ROA: 10421 Total ASes present in the Internet Routing Table: 2247 Prefixes per ASN: 6.91 Origin-only ASes present in the Internet Routing Table: 1931 Origin ASes announcing only one prefix: 846 Transit ASes present in the Internet Routing Table: 316 Transit-only ASes present in the Internet Routing Table: 63 Paths with bogon ASNs present in the IPv4 Routing Table: 0 Average AS path length visible in the Internet Routing Table: 5.0 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: 43762 Number of 32-bit ASNs visible in the Routing Table: 513 Prefixes from 32-bit ASNs in the Routing Table: 1432 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: 182429696 Equivalent to 10 /8s, 223 /16s and 168 /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: 1871 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 4091 Total APNIC prefixes after maximum aggregation: 2157 APNIC Deaggregation factor: 1.90 Prefixes being announced from the APNIC address blocks: 4091 Unique aggregates announced from the APNIC address blocks: 2472 APNIC Region origin ASes present in the Internet Routing Table: 471 APNIC Prefixes per ASN: 8.69 APNIC Region origin ASes announcing only one prefix: 203 APNIC Region transit ASes present in the Internet Routing Table: 50 Average APNIC Region AS path length visible: 5.2 Max APNIC Region AS path length visible: 13 Number of APNIC region 32-bit ASNs visible in the Routing Table: 171 Number of APNIC addresses announced to Internet: 45067520 Equivalent to 2 /8s, 175 /16s and 173 /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: 5652 Total ARIN prefixes after maximum aggregation: 3145 ARIN Deaggregation factor: 1.80 Prefixes being announced from the ARIN address blocks: 5678 Unique aggregates announced from the ARIN address blocks: 3515 ARIN Region origin ASes present in the Internet Routing Table: 919 ARIN Prefixes per ASN: 6.18 ARIN Region origin ASes announcing only one prefix: 312 ARIN Region transit ASes present in the Internet Routing Table: 127 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: 140 Number of ARIN addresses announced to Internet: 75533312 Equivalent to 4 /8s, 128 /16s and 140 /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: 3418 Total RIPE prefixes after maximum aggregation: 2746 RIPE Deaggregation factor: 1.24 Prefixes being announced from the RIPE address blocks: 3405 Unique aggregates announced from the RIPE address blocks: 2772 RIPE Region origin ASes present in the Internet Routing Table: 619 RIPE Prefixes per ASN: 5.50 RIPE Region origin ASes announcing only one prefix: 268 RIPE Region transit ASes present in the Internet Routing Table: 95 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: 131 Number of RIPE addresses announced to Internet: 55892224 Equivalent to 3 /8s, 84 /16s and 217 /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: 1388 Total LACNIC prefixes after maximum aggregation: 570 LACNIC Deaggregation factor: 2.44 Prefixes being announced from the LACNIC address blocks: 1386 Unique aggregates announced from the LACNIC address blocks: 768 LACNIC Region origin ASes present in the Internet Routing Table: 165 LACNIC Prefixes per ASN: 8.40 LACNIC Region origin ASes announcing only one prefix: 60 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: 15 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 69 Number of LACNIC addresses announced to Internet: 4222464 Equivalent to 0 /8s, 64 /16s and 110 /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: 958 Total AfriNIC prefixes after maximum aggregation: 141 AfriNIC Deaggregation factor: 6.79 Prefixes being announced from the AfriNIC address blocks: 958 Unique aggregates announced from the AfriNIC address blocks: 220 AfriNIC Region origin ASes present in the Internet Routing Table: 8 AfriNIC Prefixes per ASN: 119.75 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: 1714176 Equivalent to 0 /8s, 26 /16s and 40 /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 58647 182 18 2 KAGAWAU-AS Kagawa University, JP 4538 181 4193 75 ERX-CERNET-BKB China Education and Rese 7575 171 329 115 AARNET-AS-AP Australian Academic and Re 55824 128 19 19 NKN-CORE-NW NKN Core Network, IN 23570 59 5 11 INCHEON-AS-KR UNIVERSITY OF INCHEON, KR 2697 57 4 33 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 198 16 1 UPRENET, PR 2152 144 507 93 CSUNET-NW, US 18558 136 18 4 NETBLK-RCOEK, US 81 126 521 30 NCREN, US 270 117 328 81 AS270, US 23024 106 7 27 OCDE, US 2920 102 34 7 LACOE, US 21976 79 51 18 NJEDGE-NET, US 237 72 527 44 MERIT-AS-14, US 3477 72 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 786 184 1767 181 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 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 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, 1916 149 176 42 Rede Nacional de Ensino e Pesquisa, BR 11340 108 25 51 Red Universitaria Nacional, CL 271640 68 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 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 542 80 55 KENET-AS, KE 2018 382 319 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 542 80 55 KENET-AS, KE 7497 441 180 23 CSTNET-AS-AP Computer Network Informati 2018 382 319 71 TENET-1, ZA 680 284 1899 250 DFN Verein zur Foerderung eines Deutsch 5786 198 16 1 UPRENET, PR 1237 192 74 142 KREONET-AS-KR KISTI, KR 786 184 1767 181 JANET Jisc Services Limited, GB 58647 182 18 2 KAGAWAU-AS Kagawa University, JP 4538 181 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 542 487 KENET-AS, KE 7497 441 418 CSTNET-AS-AP Computer Network Information Cente 2018 382 311 TENET-1, ZA 5786 198 197 UPRENET, PR 58647 182 180 KAGAWAU-AS Kagawa University, JP 18558 136 132 NETBLK-RCOEK, US 8895 134 129 ISU Internet Services Unit ISU, SA 55824 128 109 NKN-CORE-NW NKN Core Network, IN 1916 149 107 Rede Nacional de Ensino e Pesquisa, BR 4538 181 106 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 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 /16:1763 /17:383 /18:379 /19:483 /20:724 /21:761 /22:1204 /23:1331 /24:8307 /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 524 542 KENET-AS, KE 8895 129 134 ISU Internet Services Unit ISU, SA 23024 52 106 OCDE, US 32440 38 62 LONI, US 3267 35 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 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 14:88 23:4 24:3 31:1 35:4 38:6 41:182 42:16 44:6 45:32 46:5 47:1 49:9 50:1 58:10 59:11 60:6 61:3 62:9 63:3 64:18 65:1 66:24 67:41 68:2 69:17 70:2 72:7 74:16 76:41 77:11 78:2 79:10 80:12 81:23 82:5 83:7 84:6 85:30 86:4 87:1 89:10 91:45 92:2 93:4 94:2 95:2 97:1 98:2 101:5 103:232 104:72 108:2 109:7 111:10 114:24 116:8 117:61 118:19 119:19 121:15 122:8 123:8 124:42 125:5 128:63 129:36 130:82 131:39 132:50 133:157 134:44 136:197 137:51 138:57 139:4 140:35 141:3 143:16 144:23 145:1 146:133 147:26 148:193 149:12 150:43 151:12 152:133 153:14 154:23 155:60 156:68 157:18 158:35 159:114 160:30 161:11 162:12 163:76 164:14 165:47 166:1 167:9 168:118 169:7 170:87 171:1 172:3 173:7 175:25 176:8 177:6 179:12 180:15 181:1 182:1 185:46 186:3 187:17 188:14 189:3 190:17 191:13 192:1230 193:263 194:135 195:70 196:140 197:334 198:274 199:112 200:271 201:37 202:407 203:304 204:282 205:37 206:65 207:63 208:67 209:91 210:194 211:15 212:159 213:4 216:32 217:10 218:22 219:5 220:17 222:3 223:14 End of report