IPv4 R&E Routing Table Report 20:15 GMT Sun 15 Oct, 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: 20932 Prefixes after maximum aggregation (per Origin AS): 11409 Deaggregation factor: 1.83 Unique aggregates announced (without unneeded subnets): 12613 Number of IPv4 prefixes with a valid ROA: 6801 Number of IPv4 prefixes with an invalid ROA: 33 Number of IPv4 prefixes with no ROA: 14098 Total ASes present in the Internet Routing Table: 2815 Prefixes per ASN: 7.44 Origin-only ASes present in the Internet Routing Table: 2417 Origin ASes announcing only one prefix: 1072 Transit ASes present in the Internet Routing Table: 398 Transit-only ASes present in the Internet Routing Table: 86 Paths with bogon ASNs present in the IPv4 Routing Table: 4 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: 4 Number of instances of unregistered ASNs: 4 Number of 32-bit ASNs allocated by the RIRs: 42849 Number of 32-bit ASNs visible in the Routing Table: 634 Prefixes from 32-bit ASNs in the Routing Table: 1947 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: 270120109 Equivalent to 16 /8s, 25 /16s and 180 /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: 99.5 Total number of prefixes smaller than registry allocations: 2600 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 5023 Total APNIC prefixes after maximum aggregation: 2381 APNIC Deaggregation factor: 2.11 Prefixes being announced from the APNIC address blocks: 4850 Unique aggregates announced from the APNIC address blocks: 2710 APNIC Region origin ASes present in the Internet Routing Table: 540 APNIC Prefixes per ASN: 8.98 APNIC Region origin ASes announcing only one prefix: 227 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: 203 Number of APNIC addresses announced to Internet: 47391084 Equivalent to 2 /8s, 211 /16s and 33 /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: 9858 Total ARIN prefixes after maximum aggregation: 5372 ARIN Deaggregation factor: 1.84 Prefixes being announced from the ARIN address blocks: 9892 Unique aggregates announced from the ARIN address blocks: 5832 ARIN Region origin ASes present in the Internet Routing Table: 1271 ARIN Prefixes per ASN: 7.78 ARIN Region origin ASes announcing only one prefix: 449 ARIN Region transit ASes present in the Internet Routing Table: 167 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: 193 Number of ARIN addresses announced to Internet: 147697313 Equivalent to 8 /8s, 205 /16s and 174 /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: 3670 Total RIPE prefixes after maximum aggregation: 2910 RIPE Deaggregation factor: 1.26 Prefixes being announced from the RIPE address blocks: 3804 Unique aggregates announced from the RIPE address blocks: 3068 RIPE Region origin ASes present in the Internet Routing Table: 701 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: 145 Number of RIPE addresses announced to Internet: 67485696 Equivalent to 4 /8s, 5 /16s and 192 /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: 1484 Total LACNIC prefixes after maximum aggregation: 572 LACNIC Deaggregation factor: 2.59 Prefixes being announced from the LACNIC address blocks: 1483 Unique aggregates announced from the LACNIC address blocks: 772 LACNIC Region origin ASes present in the Internet Routing Table: 166 LACNIC Prefixes per ASN: 8.93 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: 68 Number of LACNIC addresses announced to Internet: 4685728 Equivalent to 0 /8s, 71 /16s and 127 /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: 893 Total AfriNIC prefixes after maximum aggregation: 170 AfriNIC Deaggregation factor: 5.25 Prefixes being announced from the AfriNIC address blocks: 899 Unique aggregates announced from the AfriNIC address blocks: 227 AfriNIC Region origin ASes present in the Internet Routing Table: 49 AfriNIC Prefixes per ASN: 18.35 AfriNIC Region origin ASes announcing only one prefix: 25 AfriNIC Region transit ASes present in the Internet Routing Table: 9 Average AfriNIC Region AS path length visible: 3.7 Max AfriNIC Region AS path length visible: 10 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 25 Number of AfriNIC addresses announced to Internet: 2793984 Equivalent to 0 /8s, 42 /16s and 162 /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 367 628 101 ALIBABA-CN-NET Alibaba US Technology Co 1237 200 74 142 KREONET-AS-KR KISTI, KR 7575 177 329 119 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 125 18 16 NKN-CORE-NW NKN Core Network, IN 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/KREONet2/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 15169 832 2001 63 GOOGLE, US 8075 383 12791 323 MICROSOFT-CORP-MSN-AS-BLOCK, US 2152 372 507 93 CSUNET-NW, US 6939 230 125 183 HURRICANE, US 376 202 178 151 RISQ-AS, CA 668 202 636 171 DNIC-AS-00668, US 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 164 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 75 469 75 BELWUE BelWue-Koordination, DE 1930 65 81 60 RCCN Fundacao para a Ciencia e a Tecnol 2200 64 599 59 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 251 176 43 Rede Nacional de Ensino e Pesquisa, BR 28391 153 10 67 Universidad Juarez Autonoma de Tabasco, 11340 104 24 48 Red Universitaria Nacional, CL 271640 72 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 61468 43 3 14 CEDIA, EC 2715 42 99 32 Fundacao Carlos Chagas Filho de Amparo 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 383 319 71 TENET-1, ZA 327687 165 28 3 RENU, UG 36914 82 82 3 KENET-AS, KE 8094 48 48 15 PUKNET, ZA 327700 41 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 10 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 832 2001 63 GOOGLE, US 2907 603 2162 466 SINET-AS Research Organization of Infor 7497 437 180 23 CSTNET-AS-AP Computer Network Informati 2018 383 319 71 TENET-1, ZA 8075 383 12791 323 MICROSOFT-CORP-MSN-AS-BLOCK, US 2152 372 507 93 CSUNET-NW, US 45102 367 628 101 ALIBABA-CN-NET Alibaba US Technology Co 680 283 1903 249 DFN Verein zur Foerderung eines Deutsch 1916 251 176 43 Rede Nacional de Ensino e Pesquisa, BR 6939 230 125 183 HURRICANE, US 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 383 312 TENET-1, ZA 2152 372 279 CSUNET-NW, US 45102 367 266 ALIBABA-CN-NET Alibaba US Technology Co., Ltd., 1916 251 208 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 164 159 ISU Internet Services Unit ISU, SA 2907 603 137 SINET-AS Research Organization of Information a 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 EASTERN-NEW-MEXICO-UNIVERITY 394607 UNALLOCATED 104.249.65.0/24 23024 OCDE, US 394607 UNALLOCATED 216.100.93.0/24 23024 OCDE, US 65208 PRIVATE 216.161.32.0/23 11570 EASTERN-NEW-MEXICO-UNIVERITY 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 /16:2166 /17:492 /18:507 /19:735 /20:918 /21:934 /22:1595 /23:1683 /24:11330 /25:84 /26:61 /27:73 /28:18 /29:21 /30:15 /31:0 /32:6 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 15169 275 832 GOOGLE, US 8895 159 164 ISU Internet Services Unit ISU, SA 6939 118 230 HURRICANE, US 32440 81 111 LONI, US 8075 77 383 MICROSOFT-CORP-MSN-AS-BLOCK, US 36914 74 82 KENET-AS, KE 23024 52 113 OCDE, US 1916 39 251 Rede Nacional de Ensino e Pesquisa, BR 2152 37 372 CSUNET-NW, US 327700 37 41 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 5:15 6:4 8:8 12:1 13:1 14:89 23:14 24:3 31:7 34:2 35:3 38:8 40:1 41:116 42:10 43:10 44:7 45:48 46:7 47:45 49:9 50:3 52:2 59:19 60:5 61:1 62:17 63:38 64:86 65:8 66:61 67:43 68:9 69:23 70:13 71:1 72:17 74:117 76:42 77:9 78:3 79:10 80:12 81:27 82:8 83:6 84:12 85:41 86:4 87:1 89:11 91:53 92:4 93:5 94:8 95:3 96:5 97:2 98:2 101:2 102:30 103:282 104:80 107:48 108:45 109:10 110:2 111:17 113:4 114:23 117:61 118:32 119:18 121:27 122:8 123:8 124:40 125:4 128:87 129:47 130:87 131:65 132:64 133:152 134:110 135:1 136:199 137:133 138:11 139:5 140:42 141:1 142:265 143:22 144:28 145:4 146:131 147:57 148:193 149:12 150:46 151:12 152:131 153:14 154:30 155:63 156:66 157:18 158:35 159:115 160:30 161:31 162:24 163:83 164:10 165:47 166:2 167:16 168:117 169:8 170:95 171:1 172:91 173:87 175:26 176:9 177:5 178:1 179:12 180:15 181:3 182:1 184:5 185:82 186:3 187:17 188:13 189:3 190:19 191:14 192:1485 193:305 194:152 195:94 196:202 197:3 198:581 199:296 200:330 201:38 202:631 203:436 204:375 205:152 206:197 207:222 208:86 209:158 210:197 211:14 212:168 213:6 214:7 216:126 217:10 218:22 219:5 220:15 222:2 223:16 End of report