IPv4 R&E Routing Table Report 20:15 GMT Thu 19 Jan, 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: 20592 Prefixes after maximum aggregation (per Origin AS): 11183 Deaggregation factor: 1.84 Unique aggregates announced (without unneeded subnets): 12479 Number of IPv4 prefixes with a valid ROA: 6003 Number of IPv4 prefixes with an invalid ROA: 103 Number of IPv4 prefixes with no ROA: 14486 Total ASes present in the Internet Routing Table: 2815 Prefixes per ASN: 7.32 Origin-only ASes present in the Internet Routing Table: 2419 Origin ASes announcing only one prefix: 1065 Transit ASes present in the Internet Routing Table: 396 Transit-only ASes present in the Internet Routing Table: 85 Paths with bogon ASNs present in the IPv4 Routing Table: 2 Average AS path length visible in the Internet Routing Table: 3.9 Max AS path length visible: 19 Max AS path prepend of ASN ( 10497) 11 Prefixes from unregistered ASNs in the Routing Table: 5 Number of instances of unregistered ASNs: 5 Number of 32-bit ASNs allocated by the RIRs: 41068 Number of 32-bit ASNs visible in the Routing Table: 644 Prefixes from 32-bit ASNs in the Routing Table: 1811 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: 2 Number of addresses announced to Internet: 268647155 Equivalent to 16 /8s, 3 /16s and 58 /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: 2727 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 5138 Total APNIC prefixes after maximum aggregation: 2408 APNIC Deaggregation factor: 2.13 Prefixes being announced from the APNIC address blocks: 5004 Unique aggregates announced from the APNIC address blocks: 2744 APNIC Region origin ASes present in the Internet Routing Table: 578 APNIC Prefixes per ASN: 8.66 APNIC Region origin ASes announcing only one prefix: 243 APNIC Region transit ASes present in the Internet Routing Table: 70 Average APNIC Region AS path length visible: 3.9 Max APNIC Region AS path length visible: 15 Number of APNIC region 32-bit ASNs visible in the Routing Table: 223 Number of APNIC addresses announced to Internet: 47726444 Equivalent to 2 /8s, 216 /16s and 63 /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, 131072-151865 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: 9370 Total ARIN prefixes after maximum aggregation: 5079 ARIN Deaggregation factor: 1.84 Prefixes being announced from the ARIN address blocks: 9409 Unique aggregates announced from the ARIN address blocks: 5610 ARIN Region origin ASes present in the Internet Routing Table: 1243 ARIN Prefixes per ASN: 7.57 ARIN Region origin ASes announcing only one prefix: 433 ARIN Region transit ASes present in the Internet Routing Table: 163 Average ARIN Region AS path length visible: 3.8 Max ARIN Region AS path length visible: 19 Number of ARIN region 32-bit ASNs visible in the Routing Table: 186 Number of ARIN addresses announced to Internet: 146004257 Equivalent to 8 /8s, 179 /16s and 217 /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: 3687 Total RIPE prefixes after maximum aggregation: 2904 RIPE Deaggregation factor: 1.27 Prefixes being announced from the RIPE address blocks: 3782 Unique aggregates announced from the RIPE address blocks: 3038 RIPE Region origin ASes present in the Internet Routing Table: 697 RIPE Prefixes per ASN: 5.43 RIPE Region origin ASes announcing only one prefix: 309 RIPE Region transit ASes present in the Internet Routing Table: 105 Average RIPE Region AS path length visible: 3.8 Max RIPE Region AS path length visible: 13 Number of RIPE region 32-bit ASNs visible in the Routing Table: 144 Number of RIPE addresses announced to Internet: 67488198 Equivalent to 4 /8s, 5 /16s and 201 /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 196608-213403 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: 1404 Total LACNIC prefixes after maximum aggregation: 583 LACNIC Deaggregation factor: 2.41 Prefixes being announced from the LACNIC address blocks: 1402 Unique aggregates announced from the LACNIC address blocks: 789 LACNIC Region origin ASes present in the Internet Routing Table: 157 LACNIC Prefixes per ASN: 8.93 LACNIC Region origin ASes announcing only one prefix: 58 LACNIC Region transit ASes present in the Internet Routing Table: 24 Average LACNIC Region AS path length visible: 5.0 Max LACNIC Region AS path length visible: 12 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 63 Number of LACNIC addresses announced to Internet: 4641952 Equivalent to 0 /8s, 70 /16s and 212 /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: 988 Total AfriNIC prefixes after maximum aggregation: 204 AfriNIC Deaggregation factor: 4.84 Prefixes being announced from the AfriNIC address blocks: 993 Unique aggregates announced from the AfriNIC address blocks: 296 AfriNIC Region origin ASes present in the Internet Routing Table: 51 AfriNIC Prefixes per ASN: 19.47 AfriNIC Region origin ASes announcing only one prefix: 22 AfriNIC Region transit ASes present in the Internet Routing Table: 12 Average AfriNIC Region AS path length visible: 3.9 Max AfriNIC Region AS path length visible: 13 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 28 Number of AfriNIC addresses announced to Internet: 2785792 Equivalent to 0 /8s, 42 /16s and 130 /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 2149 461 SINET-AS Research Organization of Infor 7497 434 182 24 CSTNET-AS-AP Computer Network Informati 45102 319 510 99 ALIBABA-CN-NET Alibaba US Technology Co 1237 192 74 134 KREONET-AS-KR KISTI, KR 4538 191 4192 73 ERX-CERNET-BKB China Education and Rese 58647 175 18 2 KAGAWAU-AS Kagawa University, JP 7575 173 329 118 AARNET-AS-AP Australian Academic and Re 55824 116 18 12 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 798 2322 65 GOOGLE, US 8075 316 12787 270 MICROSOFT-CORP-MSN-AS-BLOCK, US 2152 214 507 92 CSUNET-NW, US 376 200 178 149 RISQ-AS, CA 5786 199 16 1 UPRENET, PR 6939 167 119 119 HURRICANE, US 18558 134 18 4 NETBLK-RCOEK, US 270 120 329 85 AS270, US 23024 113 7 17 OCDE, US 2920 109 34 7 LACOE, 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 1935 251 DFN Verein zur Foerderung eines Deutsch 786 186 1775 183 JANET Jisc Services Limited, GB 8895 176 24 4 ISU Internet Services Unit ISU, SA 559 114 550 105 SWITCH Peering requests: peering@switch 1103 96 1518 85 SURFNET-NL SURFnet, The Netherlands, NL 2614 95 27 75 ROEDUNET, RO 137 82 677 77 ASGARR Consortium GARR, IT 553 73 449 73 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 177 208 44 Rede Nacional de Ensino e Pesquisa, BR 28391 153 10 67 Universidad Juarez Autonoma de Tabasco, 11340 97 24 55 Red Universitaria Nacional, CL 1251 58 37 19 FUNDACAO DE AMPARO A PESQUISA DO ESTADO 2715 58 102 38 Fundacao Carlos Chagas Filho de Amparo 61468 47 3 15 CEDIA, EC 4270 45 16 1 Red de Interconexion Universitaria, AR 19611 37 17 2 Associacao Antonio Vieira - Unisinos, B 28571 37 40 18 UNIVERSIDADE DE SAO PAULO, BR 263282 37 5 12 FUNDACAO UNIVERSIDADE DO OESTE DE SANTA 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 351 319 71 TENET-1, ZA 36914 243 82 3 KENET-AS, KE 2561 67 4 34 EUN, EG 8094 48 48 15 PUKNET, ZA 327687 46 28 3 RENU, UG 3208 32 2 1 ARN, DZ 37182 31 8 1 TERNET, TZ 327700 31 16 1 MoRENet, MZ 6879 24 2 9 ENSTINET-, EG 37074 13 8 2 UG-AS, GH 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 798 2322 65 GOOGLE, US 2907 591 2149 461 SINET-AS Research Organization of Infor 7497 434 182 24 CSTNET-AS-AP Computer Network Informati 2018 351 319 71 TENET-1, ZA 45102 319 510 99 ALIBABA-CN-NET Alibaba US Technology Co 8075 316 12787 270 MICROSOFT-CORP-MSN-AS-BLOCK, US 680 283 1935 251 DFN Verein zur Foerderung eines Deutsch 36914 243 82 3 KENET-AS, KE 2152 214 507 92 CSUNET-NW, US 376 200 178 149 RISQ-AS, CA 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 434 410 CSTNET-AS-AP Computer Network Information Cente 2018 351 280 TENET-1, ZA 36914 243 240 KENET-AS, KE 45102 319 220 ALIBABA-CN-NET Alibaba US Technology Co., Ltd., 5786 199 198 UPRENET, PR 58647 175 173 KAGAWAU-AS Kagawa University, JP 8895 176 172 ISU Internet Services Unit ISU, SA 1916 177 133 Rede Nacional de Ensino e Pesquisa, BR 2907 591 130 SINET-AS Research Organization of Information a 18558 134 130 NETBLK-RCOEK, US 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 394607 UNALLOCATED 104.249.65.0/24 23024 OCDE, US 33008 UNALLOCATED 162.248.66.0/24 11096 FLORIDANET, US 19658 UNALLOCATED 199.27.241.0/24 11096 FLORIDANET, US 395514 UNALLOCATED 205.213.88.0/24 2381 WISCNET1-AS, US 394607 UNALLOCATED 216.100.93.0/24 23024 OCDE, 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 192.31.196.0/24 Origin: 112 UNASSIGNED 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 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 /12:23 /13:38 /14:69 /15:152 /16:2138 /17:475 /18:510 /19:733 /20:907 /21:909 /22:1529 /23:1653 /24:11131 /25:86 /26:57 /27:85 /28:19 /29:19 /30:21 /31:1 /32:25 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 15169 270 798 GOOGLE, US 36914 230 243 KENET-AS, KE 8895 171 176 ISU Internet Services Unit ISU, SA 32440 77 92 LONI, US 6939 63 167 HURRICANE, US 23024 52 113 OCDE, US 8075 48 316 MICROSOFT-CORP-MSN-AS-BLOCK, US 18632 34 65 VOLCANO-VISION, US 46115 32 35 LUTHER, US 200521 31 54 SEAP-AGE, ES Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:2 2:1 5:18 8:8 12:1 13:1 14:86 18:44 23:16 24:3 31:7 34:2 35:7 38:9 40:1 41:138 42:15 43:5 44:5 45:42 46:6 47:42 49:10 50:4 52:2 58:12 59:21 60:4 61:3 62:21 63:38 64:84 65:8 66:57 67:45 68:8 69:26 70:10 71:1 72:17 74:115 76:38 77:9 78:4 79:10 80:18 81:28 82:6 83:6 84:14 85:42 86:8 87:1 89:10 91:48 92:1 93:4 94:8 95:4 96:5 97:3 98:2 101:4 102:15 103:322 104:74 107:16 108:43 109:11 110:4 111:17 113:4 114:23 116:6 117:61 118:33 119:22 121:28 122:8 123:8 124:39 125:4 128:86 129:42 130:88 131:68 132:62 133:149 134:99 136:199 137:76 138:11 139:7 140:47 141:1 142:233 143:30 144:25 145:4 146:130 147:56 148:198 149:12 150:132 151:7 152:77 153:14 154:29 155:54 156:69 157:29 158:41 159:116 160:26 161:26 162:22 163:72 164:10 165:51 166:1 167:19 168:107 169:10 170:76 171:1 172:91 173:84 175:31 176:8 177:10 178:1 179:10 180:17 181:1 182:1 184:5 185:63 186:3 187:19 188:13 189:3 190:18 191:36 192:1441 193:348 194:151 195:91 196:157 197:148 198:545 199:267 200:221 201:37 202:634 203:436 204:356 205:135 206:194 207:179 208:83 209:141 210:187 211:14 212:174 213:5 216:126 217:11 218:22 219:12 220:17 222:6 223:11 End of report