IPv4 R&E Routing Table Report 20:15 GMT Tue 21 Nov, 2023 IPv4 BGP Table (R&E) as seen at KREONet2. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/KREONet2/ Analysis Summary ---------------- BGP routing table entries examined: 21181 Prefixes after maximum aggregation (per Origin AS): 11435 Deaggregation factor: 1.85 Unique aggregates announced (without unneeded subnets): 12651 Number of IPv4 prefixes with a valid ROA: 7113 Number of IPv4 prefixes with an invalid ROA: 14 Number of IPv4 prefixes with no ROA: 14054 Total ASes present in the Internet Routing Table: 2826 Prefixes per ASN: 7.50 Origin-only ASes present in the Internet Routing Table: 2426 Origin ASes announcing only one prefix: 1075 Transit ASes present in the Internet Routing Table: 400 Transit-only ASes present in the Internet Routing Table: 90 Paths with bogon ASNs present in the IPv4 Routing Table: 11 Average AS path length visible in the Internet Routing Table: 3.9 Max AS path length visible: 14 Max AS path prepend of ASN ( 47805) 11 Prefixes from unregistered ASNs in the Routing Table: 20 Number of instances of unregistered ASNs: 20 Number of 32-bit ASNs allocated by the RIRs: 43080 Number of 32-bit ASNs visible in the Routing Table: 648 Prefixes from 32-bit ASNs in the Routing Table: 1971 Number of bogon 32-bit ASNs visible in the Routing Table: 0 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 4 Number of addresses announced to Internet: 270129265 Equivalent to 16 /8s, 25 /16s and 216 /24s Percentage of available address space announced: 7.3 Percentage of allocated address space announced: 7.3 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: 2750 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 5055 Total APNIC prefixes after maximum aggregation: 2393 APNIC Deaggregation factor: 2.11 Prefixes being announced from the APNIC address blocks: 4875 Unique aggregates announced from the APNIC address blocks: 2721 APNIC Region origin ASes present in the Internet Routing Table: 543 APNIC Prefixes per ASN: 8.98 APNIC Region origin ASes announcing only one prefix: 230 APNIC Region transit ASes present in the Internet Routing Table: 62 Average APNIC Region AS path length visible: 3.8 Max APNIC Region AS path length visible: 13 Number of APNIC region 32-bit ASNs visible in the Routing Table: 207 Number of APNIC addresses announced to Internet: 47394416 Equivalent to 2 /8s, 211 /16s and 46 /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: 9924 Total ARIN prefixes after maximum aggregation: 5373 ARIN Deaggregation factor: 1.85 Prefixes being announced from the ARIN address blocks: 9986 Unique aggregates announced from the ARIN address blocks: 5858 ARIN Region origin ASes present in the Internet Routing Table: 1272 ARIN Prefixes per ASN: 7.85 ARIN Region origin ASes announcing only one prefix: 448 ARIN Region transit ASes present in the Internet Routing Table: 165 Average ARIN Region AS path length visible: 3.7 Max ARIN Region AS path length visible: 14 Number of ARIN region 32-bit ASNs visible in the Routing Table: 197 Number of ARIN addresses announced to Internet: 147654241 Equivalent to 8 /8s, 205 /16s and 6 /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: 3658 Total RIPE prefixes after maximum aggregation: 2907 RIPE Deaggregation factor: 1.26 Prefixes being announced from the RIPE address blocks: 3788 Unique aggregates announced from the RIPE address blocks: 3070 RIPE Region origin ASes present in the Internet Routing Table: 698 RIPE Prefixes per ASN: 5.43 RIPE Region origin ASes announcing only one prefix: 308 RIPE Region transit ASes present in the Internet Routing Table: 110 Average RIPE Region AS path length visible: 4.0 Max RIPE Region AS path length visible: 14 Number of RIPE region 32-bit ASNs visible in the Routing Table: 147 Number of RIPE addresses announced to Internet: 67480576 Equivalent to 4 /8s, 5 /16s and 172 /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: 1471 Total LACNIC prefixes after maximum aggregation: 574 LACNIC Deaggregation factor: 2.56 Prefixes being announced from the LACNIC address blocks: 1470 Unique aggregates announced from the LACNIC address blocks: 768 LACNIC Region origin ASes present in the Internet Routing Table: 167 LACNIC Prefixes per ASN: 8.80 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: 5.1 Max LACNIC Region AS path length visible: 13 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 69 Number of LACNIC addresses announced to Internet: 4740256 Equivalent to 0 /8s, 72 /16s and 84 /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: 1053 Total AfriNIC prefixes after maximum aggregation: 171 AfriNIC Deaggregation factor: 6.16 Prefixes being announced from the AfriNIC address blocks: 1058 Unique aggregates announced from the AfriNIC address blocks: 230 AfriNIC Region origin ASes present in the Internet Routing Table: 52 AfriNIC Prefixes per ASN: 20.35 AfriNIC Region origin ASes announcing only one prefix: 26 AfriNIC Region transit ASes present in the Internet Routing Table: 10 Average AfriNIC Region AS path length visible: 3.8 Max AfriNIC Region AS path length visible: 9 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 28 Number of AfriNIC addresses announced to Internet: 2793472 Equivalent to 0 /8s, 42 /16s and 160 /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 603 2162 466 SINET-AS Research Organization of Infor 7497 437 180 23 CSTNET-AS-AP Computer Network Informati 45102 386 631 99 ALIBABA-CN-NET Alibaba US Technology Co 1237 200 74 142 KREONET-AS-KR KISTI, KR 7575 177 329 120 AARNET-AS-AP Australian Academic and Re 58647 177 18 2 KAGAWAU-AS Kagawa University, JP 4538 130 4192 73 ERX-CERNET-BKB China Education and Rese 55824 127 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 Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 15169 833 2001 63 GOOGLE, US 8075 394 12792 331 MICROSOFT-CORP-MSN-AS-BLOCK, US 2152 385 507 96 CSUNET-NW, US 6939 217 123 170 HURRICANE, US 668 203 636 172 DNIC-AS-00668, US 376 202 178 151 RISQ-AS, CA 5786 197 16 1 UPRENET, PR 18558 141 18 4 NETBLK-RCOEK, US 81 127 521 30 NCREN, US 270 115 305 80 AS270, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/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 158 24 5 ISU Internet Services Unit ISU, SA 559 113 533 105 SWITCH Peering requests: peering@switch 1103 94 1502 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/KREONet2/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 1916 250 176 43 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 3596 35 4 3 Universidad Autonoma Metropolitana, MX Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 2018 371 319 70 TENET-1, ZA 36914 243 82 3 KENET-AS, KE 327687 165 28 3 RENU, UG 8094 48 48 15 PUKNET, ZA 327700 45 16 1 MoRENet, MZ 3208 32 2 1 ARN, DZ 6879 24 2 9 ENSTINET-, EG 37074 14 8 2 UG-AS, GH 37501 11 49 6 UOFS, ZA 37654 11 1 6 RwEdNet-AS, RW Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 15169 833 2001 63 GOOGLE, US 2907 603 2162 466 SINET-AS Research Organization of Infor 7497 437 180 23 CSTNET-AS-AP Computer Network Informati 8075 394 12792 331 MICROSOFT-CORP-MSN-AS-BLOCK, US 45102 386 631 99 ALIBABA-CN-NET Alibaba US Technology Co 2152 385 507 96 CSUNET-NW, US 2018 371 319 70 TENET-1, ZA 680 283 1903 249 DFN Verein zur Foerderung eines Deutsch 1916 250 176 43 Rede Nacional de Ensino e Pesquisa, BR 36914 243 82 3 KENET-AS, KE Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 7497 437 414 CSTNET-AS-AP Computer Network Information Cente 2018 371 301 TENET-1, ZA 2152 385 289 CSUNET-NW, US 45102 386 287 ALIBABA-CN-NET Alibaba US Technology Co., Ltd., 36914 243 240 KENET-AS, KE 1916 250 207 Rede Nacional de Ensino e Pesquisa, BR 5786 197 196 UPRENET, PR 58647 177 175 KAGAWAU-AS Kagawa University, JP 327687 165 162 RENU, UG 8895 158 153 ISU Internet Services Unit ISU, SA Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 65208 PRIVATE 63.225.1.0/24 11570 RESERVED, ZZ 65101 PRIVATE 64.54.9.0/24 5653 UCSF, US 65101 PRIVATE 64.54.18.0/24 5653 UCSF, US 65101 PRIVATE 64.54.128.0/24 5653 UCSF, US 65101 PRIVATE 64.54.149.0/24 5653 UCSF, US 65101 PRIVATE 64.54.162.0/24 5653 UCSF, US 65101 PRIVATE 64.54.196.0/24 5653 UCSF, US 65101 PRIVATE 64.54.197.0/24 5653 UCSF, US 394607 UNALLOCATED 104.249.65.0/24 23024 OCDE, US 11570 UNALLOCATED 192.94.216.0/24 40498 ABQG, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-badAS Prefixes from the Special Purpose Address Registry (Global) ----------------------------------------------------------- Prefix Origin AS Description 192.88.99.0/24 6939 HURRICANE, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-spar Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 134.208.0.0/16 Origin: 17711 NDHU-TW National Dong Hwa University, TW 134.208.0.0/16 Transit: 7539 TWAREN-TW National Center for High-perfo 192.31.196.0/24 Origin: 112 RESERVED, ZZ 192.31.196.0/24 Transit: 1103 SURFNET-NL SURFnet, The Netherlands, NL 192.88.99.0/24 Origin: 6939 HURRICANE, US 192.88.99.0/24 Transit: 17579 KREONET2-AS-KR KISTI, KR 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/KREONet2/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 /10:4 /11:7 /12:22 /13:37 /14:68 /15:155 /16:2174 /17:497 /18:518 /19:752 /20:931 /21:941 /22:1589 /23:1688 /24:11518 /25:83 /26:62 /27:72 /28:18 /29:22 /30:16 /31:0 /32:6 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 15169 275 833 GOOGLE, US 36914 232 243 KENET-AS, KE 8895 153 158 ISU Internet Services Unit ISU, SA 6939 104 217 HURRICANE, US 8075 83 394 MICROSOFT-CORP-MSN-AS-BLOCK, US 32440 81 112 LONI, US 23024 52 112 OCDE, US 1916 40 250 Rede Nacional de Ensino e Pesquisa, BR 2152 40 385 CSUNET-NW, US 327700 39 45 MoRENet, MZ Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:2 2:1 5:16 6:4 8:11 12:1 13:1 14:89 23:14 24:3 31:7 34:2 35:7 38:8 40:1 41:118 42:10 43:11 44:7 45:51 46:7 47:46 49:9 50:3 52:2 58:1 59:19 60:5 61:1 62:17 63:37 64:84 65:8 66:63 67:45 68:9 69:23 70:13 71:1 72:17 74:117 76:42 77:9 78:3 79:10 80:11 81:26 82:8 83:7 84:12 85:38 86:4 87:1 89:11 91:52 92:4 93:5 94:8 95:3 96:5 97:2 98:2 101:2 102:36 103:289 104:82 107:50 108:44 109:7 110:2 111:17 113:4 114:23 117:61 118:32 119:18 121:28 122:8 123:8 124:40 125:4 128:88 129:45 130:85 131:70 132:64 133:152 134:112 135:1 136:199 137:134 138:11 139:5 140:42 141:3 142:267 143:22 144:28 145:4 146:132 147:60 148:194 149:11 150:46 151:12 152:133 153:14 154:30 155:63 156:66 157:18 158:35 159:115 160:30 161:30 162:24 163:82 164:13 165:47 166:2 167:16 168:105 169:8 170:95 171:1 172:91 173:87 175:18 176:9 177:6 178:1 179:12 180:15 181:2 182:1 184:3 185:86 186:3 187:17 188:15 189:3 190:19 191:14 192:1494 193:307 194:150 195:97 196:202 197:159 198:569 199:297 200:322 201:38 202:625 203:439 204:379 205:153 206:200 207:222 208:92 209:159 210:199 211:14 212:165 213:6 214:8 216:127 217:10 218:22 219:5 220:15 222:2 223:16 End of report