IPv4 R&E Routing Table Report 20:15 GMT Tue 17 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: 20927 Prefixes after maximum aggregation (per Origin AS): 11403 Deaggregation factor: 1.84 Unique aggregates announced (without unneeded subnets): 12613 Number of IPv4 prefixes with a valid ROA: 6794 Number of IPv4 prefixes with an invalid ROA: 31 Number of IPv4 prefixes with no ROA: 14102 Total ASes present in the Internet Routing Table: 2810 Prefixes per ASN: 7.45 Origin-only ASes present in the Internet Routing Table: 2419 Origin ASes announcing only one prefix: 1073 Transit ASes present in the Internet Routing Table: 391 Transit-only ASes present in the Internet Routing Table: 82 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: 42854 Number of 32-bit ASNs visible in the Routing Table: 639 Prefixes from 32-bit ASNs in the Routing Table: 1957 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: 270044333 Equivalent to 16 /8s, 24 /16s and 140 /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: 2606 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 5009 Total APNIC prefixes after maximum aggregation: 2379 APNIC Deaggregation factor: 2.11 Prefixes being announced from the APNIC address blocks: 4838 Unique aggregates announced from the APNIC address blocks: 2701 APNIC Region origin ASes present in the Internet Routing Table: 538 APNIC Prefixes per ASN: 8.99 APNIC Region origin ASes announcing only one prefix: 227 APNIC Region transit ASes present in the Internet Routing Table: 61 Average APNIC Region AS path length visible: 3.7 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: 47388012 Equivalent to 2 /8s, 211 /16s and 21 /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: 9861 Total ARIN prefixes after maximum aggregation: 5374 ARIN Deaggregation factor: 1.83 Prefixes being announced from the ARIN address blocks: 9894 Unique aggregates announced from the ARIN address blocks: 5839 ARIN Region origin ASes present in the Internet Routing Table: 1273 ARIN Prefixes per ASN: 7.77 ARIN Region origin ASes announcing only one prefix: 450 ARIN Region transit ASes present in the Internet Routing Table: 164 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: 196 Number of ARIN addresses announced to Internet: 147643553 Equivalent to 8 /8s, 204 /16s and 220 /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: 3669 Total RIPE prefixes after maximum aggregation: 2902 RIPE Deaggregation factor: 1.26 Prefixes being announced from the RIPE address blocks: 3802 Unique aggregates announced from the RIPE address blocks: 3068 RIPE Region origin ASes present in the Internet Routing Table: 699 RIPE Prefixes per ASN: 5.44 RIPE Region origin ASes announcing only one prefix: 307 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: 67466240 Equivalent to 4 /8s, 5 /16s and 116 /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: 1489 Total LACNIC prefixes after maximum aggregation: 574 LACNIC Deaggregation factor: 2.59 Prefixes being announced from the LACNIC address blocks: 1488 Unique aggregates announced from the LACNIC address blocks: 774 LACNIC Region origin ASes present in the Internet Routing Table: 167 LACNIC Prefixes per ASN: 8.91 LACNIC Region origin ASes announcing only one prefix: 64 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: 4686240 Equivalent to 0 /8s, 71 /16s and 129 /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: 895 Total AfriNIC prefixes after maximum aggregation: 170 AfriNIC Deaggregation factor: 5.26 Prefixes being announced from the AfriNIC address blocks: 901 Unique aggregates announced from the AfriNIC address blocks: 227 AfriNIC Region origin ASes present in the Internet Routing Table: 49 AfriNIC Prefixes per ASN: 18.39 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: 26 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 362 630 100 ALIBABA-CN-NET Alibaba US Technology Co 1237 200 74 142 KREONET-AS-KR KISTI, KR 58647 177 18 2 KAGAWAU-AS Kagawa University, JP 7575 176 329 119 AARNET-AS-AP Australian Academic and Re 4538 130 4192 73 ERX-CERNET-BKB China Education and Rese 55824 126 18 17 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 382 12791 322 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 668 201 635 170 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 74 465 74 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 252 176 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 2715 43 99 33 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 382 319 71 TENET-1, ZA 327687 168 28 3 RENU, UG 36914 83 82 3 KENET-AS, KE 8094 48 48 15 PUKNET, ZA 327700 38 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 382 319 71 TENET-1, ZA 8075 382 12791 322 MICROSOFT-CORP-MSN-AS-BLOCK, US 2152 372 507 93 CSUNET-NW, US 45102 362 630 100 ALIBABA-CN-NET Alibaba US Technology Co 680 283 1903 249 DFN Verein zur Foerderung eines Deutsch 1916 252 176 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 382 311 TENET-1, ZA 2152 372 279 CSUNET-NW, US 45102 362 262 ALIBABA-CN-NET Alibaba US Technology Co., Ltd., 1916 252 209 Rede Nacional de Ensino e Pesquisa, BR 5786 197 196 UPRENET, PR 58647 177 175 KAGAWAU-AS Kagawa University, JP 327687 168 165 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 /16:2165 /17:492 /18:502 /19:732 /20:919 /21:932 /22:1594 /23:1683 /24:11336 /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 77 382 MICROSOFT-CORP-MSN-AS-BLOCK, US 36914 75 83 KENET-AS, KE 23024 52 113 OCDE, US 1916 39 252 Rede Nacional de Ensino e Pesquisa, BR 2152 37 372 CSUNET-NW, US 327700 36 38 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 41:118 42:10 43:9 44:7 45:48 46:7 47:43 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 98:2 101:2 102:31 103:282 104:80 107:48 108:45 109:10 110:2 111:17 113:4 114:23 117:61 118:32 119:18 121:27 122:8 123:8 124:40 125:4 128:88 129:48 130:87 131:65 132:64 133:152 134:111 135:1 136:199 137:135 138:11 139:5 140:42 141:1 142:265 143:22 144:28 145:4 146:131 147:57 148:193 149:12 150:46 151:12 152:132 153:14 154:30 155:63 156:66 157:18 158:36 159:115 160:30 161:31 162:24 163:83 164:10 165:47 166:2 167:16 168:117 169:8 170:95 171:1 172:91 173:87 175:18 176:9 177:6 178:1 179:12 180:15 181:3 182:1 184:4 185:82 186:3 187:17 188:13 189:3 190:19 191:14 192:1488 193:306 194:151 195:94 196:201 197:3 198:583 199:296 200:332 201:38 202:630 203:435 204:375 205:152 206:198 207:222 208:87 209:158 210:197 211:14 212:169 213:6 214:7 216:126 217:10 218:22 219:5 220:15 222:2 223:16 End of report