IPv4 R&E Routing Table Report 20:15 GMT Tue 23 Aug, 2022 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: 20327 Prefixes after maximum aggregation (per Origin AS): 11137 Deaggregation factor: 1.83 Unique aggregates announced (without unneeded subnets): 12403 Number of IPv4 prefixes with a valid ROA: 5589 Number of IPv4 prefixes with an invalid ROA: 84 Number of IPv4 prefixes with no ROA: 14654 Total ASes present in the Internet Routing Table: 2817 Prefixes per ASN: 7.22 Origin-only ASes present in the Internet Routing Table: 2419 Origin ASes announcing only one prefix: 1095 Transit ASes present in the Internet Routing Table: 398 Transit-only ASes present in the Internet Routing Table: 76 Paths with bogon ASNs present in the IPv4 Routing Table: 2 Average AS path length visible in the Internet Routing Table: 4.0 Max AS path length visible: 15 Max AS path prepend of ASN ( 10497) 11 Prefixes from unregistered ASNs in the Routing Table: 6 Number of instances of unregistered ASNs: 6 Number of 32-bit ASNs allocated by the RIRs: 40033 Number of 32-bit ASNs visible in the Routing Table: 648 Prefixes from 32-bit ASNs in the Routing Table: 1814 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: 268170259 Equivalent to 15 /8s, 251 /16s and 244 /24s Percentage of available address space announced: 7.2 Percentage of allocated address space announced: 7.2 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: 2683 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 5056 Total APNIC prefixes after maximum aggregation: 2418 APNIC Deaggregation factor: 2.09 Prefixes being announced from the APNIC address blocks: 4927 Unique aggregates announced from the APNIC address blocks: 2718 APNIC Region origin ASes present in the Internet Routing Table: 592 APNIC Prefixes per ASN: 8.32 APNIC Region origin ASes announcing only one prefix: 259 APNIC Region transit ASes present in the Internet Routing Table: 74 Average APNIC Region AS path length visible: 4.0 Max APNIC Region AS path length visible: 15 Number of APNIC region 32-bit ASNs visible in the Routing Table: 234 Number of APNIC addresses announced to Internet: 47756396 Equivalent to 2 /8s, 216 /16s and 180 /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: 9201 Total ARIN prefixes after maximum aggregation: 5037 ARIN Deaggregation factor: 1.83 Prefixes being announced from the ARIN address blocks: 9265 Unique aggregates announced from the ARIN address blocks: 5595 ARIN Region origin ASes present in the Internet Routing Table: 1241 ARIN Prefixes per ASN: 7.47 ARIN Region origin ASes announcing only one prefix: 439 ARIN Region transit ASes present in the Internet Routing Table: 164 Average ARIN Region AS path length visible: 3.9 Max ARIN Region AS path length visible: 14 Number of ARIN region 32-bit ASNs visible in the Routing Table: 184 Number of ARIN addresses announced to Internet: 149691457 Equivalent to 8 /8s, 236 /16s and 28 /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: 3663 Total RIPE prefixes after maximum aggregation: 2882 RIPE Deaggregation factor: 1.27 Prefixes being announced from the RIPE address blocks: 3728 Unique aggregates announced from the RIPE address blocks: 2982 RIPE Region origin ASes present in the Internet Routing Table: 692 RIPE Prefixes per ASN: 5.39 RIPE Region origin ASes announcing only one prefix: 310 RIPE Region transit ASes present in the Internet Routing Table: 105 Average RIPE Region AS path length visible: 3.9 Max RIPE Region AS path length visible: 15 Number of RIPE region 32-bit ASNs visible in the Routing Table: 137 Number of RIPE addresses announced to Internet: 63216710 Equivalent to 3 /8s, 196 /16s and 156 /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: 1452 Total LACNIC prefixes after maximum aggregation: 581 LACNIC Deaggregation factor: 2.50 Prefixes being announced from the LACNIC address blocks: 1453 Unique aggregates announced from the LACNIC address blocks: 795 LACNIC Region origin ASes present in the Internet Routing Table: 162 LACNIC Prefixes per ASN: 8.97 LACNIC Region origin ASes announcing only one prefix: 63 LACNIC Region transit ASes present in the Internet Routing Table: 25 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: 67 Number of LACNIC addresses announced to Internet: 4742688 Equivalent to 0 /8s, 72 /16s and 94 /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: 949 Total AfriNIC prefixes after maximum aggregation: 213 AfriNIC Deaggregation factor: 4.46 Prefixes being announced from the AfriNIC address blocks: 952 Unique aggregates announced from the AfriNIC address blocks: 311 AfriNIC Region origin ASes present in the Internet Routing Table: 49 AfriNIC Prefixes per ASN: 19.43 AfriNIC Region origin ASes announcing only one prefix: 24 AfriNIC Region transit ASes present in the Internet Routing Table: 11 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: 26 Number of AfriNIC addresses announced to Internet: 2762496 Equivalent to 0 /8s, 42 /16s and 39 /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 577 2156 457 SINET-AS Research Organization of Infor 7497 433 182 24 CSTNET-AS-AP Computer Network Informati 45102 282 475 90 ALIBABA-CN-NET Alibaba US Technology Co 1237 192 74 134 KREONET-AS-KR KISTI, KR 4538 189 4192 73 ERX-CERNET-BKB China Education and Rese 7575 175 329 121 AARNET-AS-AP Australian Academic and Re 58647 175 18 2 KAGAWAU-AS Kagawa University, JP 55824 115 18 11 NKN-CORE-NW NKN Core Network, IN 4621 78 37 10 UNINET-AS-AP UNINET-, TH 4762 65 4 1 MAHIDOL-BORDER-AS Mahidol 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 750 3282 69 GOOGLE, US 8075 262 11727 226 MICROSOFT-CORP-MSN-AS-BLOCK, US 376 203 178 152 RISQ-AS, CA 5786 200 16 1 UPRENET, PR 2152 160 507 92 CSUNET-NW, US 6939 160 120 111 HURRICANE, US 18558 135 18 4 NETBLK-RCOEK, US 270 120 329 85 AS270, US 23024 114 7 17 OCDE, US 2920 111 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 680 282 1951 250 DFN Verein zur Foerderung eines Deutsch 786 186 1775 183 JANET Jisc Services Limited, GB 8895 180 24 4 ISU Internet Services Unit ISU, SA 559 115 550 106 SWITCH Peering requests: peering@switch 1103 99 1520 86 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 2200 64 599 59 FR-RENATER Reseau National de telecommu 3267 63 64 27 RUNNET, RU 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 176 208 44 Rede Nacional de Ensino e Pesquisa, BR 28391 152 10 66 Universidad Juarez Autonoma de Tabasco, 11340 95 24 54 Red Universitaria Nacional, CL 2715 59 102 39 Fundacao Carlos Chagas Filho de Amparo 1251 58 37 19 FUNDACAO DE AMPARO A PESQUISA DO ESTADO 61468 46 3 15 CEDIA, EC 4270 42 16 1 Red de Interconexion Universitaria, AR 28571 41 40 18 UNIVERSIDADE DE SAO PAULO, BR 19611 37 17 2 Associacao Antonio Vieira - Unisinos, B 28614 37 2 2 Fundacao Universidade Regional de Blume 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 376 319 73 TENET-1, ZA 36914 232 82 3 KENET-AS, KE 2561 67 4 32 EUN, EG 8094 48 48 15 PUKNET, ZA 327687 38 28 3 RENU, UG 327700 34 16 1 MoRENet, MZ 6879 24 2 9 ENSTINET-, EG 37182 19 1 13 TERNET, TZ 37074 13 8 2 UG-AS, GH 37501 11 49 6 UOFS, ZA 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 750 3282 69 GOOGLE, US 2907 577 2156 457 SINET-AS Research Organization of Infor 7497 433 182 24 CSTNET-AS-AP Computer Network Informati 2018 376 319 73 TENET-1, ZA 680 282 1951 250 DFN Verein zur Foerderung eines Deutsch 45102 282 475 90 ALIBABA-CN-NET Alibaba US Technology Co 8075 262 11727 226 MICROSOFT-CORP-MSN-AS-BLOCK, US 36914 232 82 3 KENET-AS, KE 376 203 178 152 RISQ-AS, CA 5786 200 16 1 UPRENET, PR 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 433 409 CSTNET-AS-AP Computer Network Information Cente 2018 376 303 TENET-1, ZA 36914 232 229 KENET-AS, KE 5786 200 199 UPRENET, PR 45102 282 192 ALIBABA-CN-NET Alibaba US Technology Co., Ltd., 8895 180 176 ISU Internet Services Unit ISU, SA 58647 175 173 KAGAWAU-AS Kagawa University, JP 1916 176 132 Rede Nacional de Ensino e Pesquisa, BR 18558 135 131 NETBLK-RCOEK, US 2907 577 120 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 394607 UNALLOCATED 104.249.65.0/24 23024 OCDE, US 22063 UNALLOCATED 153.10.0.0/16 2152 CSUNET-NW, US 22226 UNALLOCATED 156.1.0.0/16 2152 CSUNET-NW, 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 1103 SURFNET-NL SURFnet, The Netherlands, NL 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: 1103 SURFNET-NL SURFnet, The Netherlands, NL 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 /13:39 /14:82 /15:151 /16:2130 /17:464 /18:504 /19:736 /20:904 /21:904 /22:1479 /23:1641 /24:10935 /25:87 /26:57 /27:89 /28:21 /29:19 /30:20 /31:0 /32:30 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 15169 275 750 GOOGLE, US 36914 219 232 KENET-AS, KE 8895 175 180 ISU Internet Services Unit ISU, SA 32440 75 90 LONI, US 6939 62 160 HURRICANE, US 23024 53 114 OCDE, US 8075 37 262 MICROSOFT-CORP-MSN-AS-BLOCK, US 18632 34 63 VOLCANO-VISION, US 46115 32 35 LUTHER, US 25977 31 45 HCCS, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:3 5:18 8:8 12:1 13:1 14:86 18:43 23:15 24:3 31:7 34:2 35:5 37:2 38:9 40:1 41:130 42:15 43:1 44:5 45:35 46:5 47:40 49:10 50:4 52:2 58:11 59:21 60:4 61:3 62:15 63:39 64:83 65:8 66:44 67:45 68:8 69:20 70:11 71:1 72:16 74:117 76:37 77:7 78:4 79:10 80:20 81:27 82:6 83:6 84:9 85:46 86:10 87:1 88:1 89:10 91:48 92:1 93:4 94:8 95:4 96:5 97:1 98:2 101:8 102:14 103:325 104:76 107:16 108:43 109:11 110:6 111:17 113:4 114:23 116:6 117:61 118:33 119:23 121:29 122:8 123:8 124:39 125:4 128:86 129:37 130:90 131:80 132:59 133:145 134:100 136:200 137:73 138:12 139:5 140:41 141:1 142:156 143:30 144:25 145:2 146:130 147:55 148:192 149:12 150:132 151:6 152:78 153:13 154:28 155:53 156:66 157:23 158:41 159:116 160:26 161:27 162:22 163:71 164:10 165:57 166:1 167:17 168:121 169:10 170:68 172:91 173:86 175:30 176:8 177:11 178:1 179:10 180:18 181:1 182:4 184:7 185:60 186:3 187:19 188:13 189:3 190:34 191:35 192:1439 193:314 194:150 195:94 196:161 197:137 198:527 199:265 200:221 201:38 202:635 203:439 204:355 205:128 206:194 207:171 208:88 209:133 210:183 211:13 212:177 213:5 216:122 217:12 218:22 219:12 220:17 222:6 223:8 End of report