IPv4 R&E Routing Table Report 20:15 GMT Tue 11 Jul, 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: 20960 Prefixes after maximum aggregation (per Origin AS): 11334 Deaggregation factor: 1.85 Unique aggregates announced (without unneeded subnets): 12559 Number of IPv4 prefixes with a valid ROA: 6748 Number of IPv4 prefixes with an invalid ROA: 29 Number of IPv4 prefixes with no ROA: 14183 Total ASes present in the Internet Routing Table: 2809 Prefixes per ASN: 7.46 Origin-only ASes present in the Internet Routing Table: 2410 Origin ASes announcing only one prefix: 1066 Transit ASes present in the Internet Routing Table: 399 Transit-only ASes present in the Internet Routing Table: 95 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 (395156) 12 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: 42276 Number of 32-bit ASNs visible in the Routing Table: 630 Prefixes from 32-bit ASNs in the Routing Table: 1877 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: 5 Number of addresses announced to Internet: 270927245 Equivalent to 16 /8s, 38 /16s and 5 /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: 2810 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 4974 Total APNIC prefixes after maximum aggregation: 2354 APNIC Deaggregation factor: 2.11 Prefixes being announced from the APNIC address blocks: 4833 Unique aggregates announced from the APNIC address blocks: 2676 APNIC Region origin ASes present in the Internet Routing Table: 537 APNIC Prefixes per ASN: 9.00 APNIC Region origin ASes announcing only one prefix: 227 APNIC Region transit ASes present in the Internet Routing Table: 63 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: 200 Number of APNIC addresses announced to Internet: 47453804 Equivalent to 2 /8s, 212 /16s and 22 /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: 9749 Total ARIN prefixes after maximum aggregation: 5351 ARIN Deaggregation factor: 1.82 Prefixes being announced from the ARIN address blocks: 9767 Unique aggregates announced from the ARIN address blocks: 5836 ARIN Region origin ASes present in the Internet Routing Table: 1263 ARIN Prefixes per ASN: 7.73 ARIN Region origin ASes announcing only one prefix: 442 ARIN Region transit ASes present in the Internet Routing Table: 166 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: 193 Number of ARIN addresses announced to Internet: 148480769 Equivalent to 8 /8s, 217 /16s and 163 /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: 3684 Total RIPE prefixes after maximum aggregation: 2894 RIPE Deaggregation factor: 1.27 Prefixes being announced from the RIPE address blocks: 3801 Unique aggregates announced from the RIPE address blocks: 3052 RIPE Region origin ASes present in the Internet Routing Table: 698 RIPE Prefixes per ASN: 5.45 RIPE Region origin ASes announcing only one prefix: 308 RIPE Region transit ASes present in the Internet Routing Table: 112 Average RIPE Region AS path length visible: 3.9 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: 67482880 Equivalent to 4 /8s, 5 /16s and 181 /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: 1465 Total LACNIC prefixes after maximum aggregation: 561 LACNIC Deaggregation factor: 2.61 Prefixes being announced from the LACNIC address blocks: 1464 Unique aggregates announced from the LACNIC address blocks: 761 LACNIC Region origin ASes present in the Internet Routing Table: 161 LACNIC Prefixes per ASN: 9.09 LACNIC Region origin ASes announcing only one prefix: 62 LACNIC Region transit ASes present in the Internet Routing Table: 26 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: 65 Number of LACNIC addresses announced to Internet: 4702752 Equivalent to 0 /8s, 71 /16s and 194 /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: 1082 Total AfriNIC prefixes after maximum aggregation: 168 AfriNIC Deaggregation factor: 6.44 Prefixes being announced from the AfriNIC address blocks: 1090 Unique aggregates announced from the AfriNIC address blocks: 229 AfriNIC Region origin ASes present in the Internet Routing Table: 52 AfriNIC Prefixes per ASN: 20.96 AfriNIC Region origin ASes announcing only one prefix: 27 AfriNIC Region transit ASes present in the Internet Routing Table: 9 Average AfriNIC Region AS path length visible: 3.9 Max AfriNIC Region AS path length visible: 15 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 28 Number of AfriNIC addresses announced to Internet: 2801664 Equivalent to 0 /8s, 42 /16s and 192 /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 606 2147 466 SINET-AS Research Organization of Infor 7497 434 180 23 CSTNET-AS-AP Computer Network Informati 45102 317 528 103 ALIBABA-CN-NET Alibaba US Technology Co 1237 197 74 139 KREONET-AS-KR KISTI, KR 58647 178 18 2 KAGAWAU-AS Kagawa University, JP 7575 177 329 120 AARNET-AS-AP Australian Academic and Re 4538 130 4192 73 ERX-CERNET-BKB China Education and Rese 55824 121 18 14 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 829 2257 64 GOOGLE, US 8075 354 12789 299 MICROSOFT-CORP-MSN-AS-BLOCK, US 2152 274 507 94 CSUNET-NW, US 6939 239 125 190 HURRICANE, US 668 210 604 178 DNIC-AS-00668, US 376 202 178 150 RISQ-AS, CA 5786 198 16 1 UPRENET, PR 18558 134 18 4 NETBLK-RCOEK, US 81 128 521 31 NCREN, US 270 117 329 82 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 680 284 1919 250 DFN Verein zur Foerderung eines Deutsch 786 185 1767 182 JANET Jisc Services Limited, GB 8895 163 24 5 ISU Internet Services Unit ISU, SA 559 112 533 104 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 258 192 43 Rede Nacional de Ensino e Pesquisa, BR 28391 153 10 67 Universidad Juarez Autonoma de Tabasco, 11340 103 24 47 Red Universitaria Nacional, CL 2715 58 102 38 Fundacao Carlos Chagas Filho de Amparo 1251 56 36 15 FUNDACAO DE AMPARO A PESQUISA DO ESTADO 4270 48 16 1 Red de Interconexion Universitaria, AR 61468 43 3 15 CEDIA, EC 28571 39 39 17 UNIVERSIDADE DE SAO PAULO, BR 28614 38 2 2 Fundacao Universidade Regional de Blume 19611 37 17 2 Associacao Antonio Vieira - Unisinos, B 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 365 319 66 TENET-1, ZA 36914 258 82 3 KENET-AS, KE 327687 166 28 3 RENU, UG 8094 48 48 15 PUKNET, ZA 327700 40 16 1 MoRENet, MZ 37215 37 8 1 MAREN, MW 3208 32 2 1 ARN, DZ 6879 24 2 9 ENSTINET-, EG 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 829 2257 64 GOOGLE, US 2907 606 2147 466 SINET-AS Research Organization of Infor 7497 434 180 23 CSTNET-AS-AP Computer Network Informati 2018 365 319 66 TENET-1, ZA 8075 354 12789 299 MICROSOFT-CORP-MSN-AS-BLOCK, US 45102 317 528 103 ALIBABA-CN-NET Alibaba US Technology Co 680 284 1919 250 DFN Verein zur Foerderung eines Deutsch 2152 274 507 94 CSUNET-NW, US 1916 258 192 43 Rede Nacional de Ensino e Pesquisa, BR 36914 258 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 434 411 CSTNET-AS-AP Computer Network Information Cente 2018 365 299 TENET-1, ZA 36914 258 255 KENET-AS, KE 1916 258 215 Rede Nacional de Ensino e Pesquisa, BR 45102 317 214 ALIBABA-CN-NET Alibaba US Technology Co., Ltd., 5786 198 197 UPRENET, PR 2152 274 180 CSUNET-NW, US 58647 178 176 KAGAWAU-AS Kagawa University, JP 327687 166 163 RENU, UG 8895 163 158 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 29867 UNALLOCATED 64.202.80.0/20 22742 CT-EDU-NET, US 394607 UNALLOCATED 104.249.65.0/24 23024 OCDE, US 33008 UNALLOCATED 162.248.66.0/24 11096 FLORIDANET, US 29867 UNALLOCATED 192.160.243.0/24 22742 CT-EDU-NET, US 29867 UNALLOCATED 192.160.244.0/24 22742 CT-EDU-NET, 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 64.202.80.0/20 Origin: 29867 UNASSIGNED 64.202.80.0/20 Transit: 22742 CT-EDU-NET, US 102.36.194.0/23 Origin: 2018 TENET-1, ZA 102.36.194.0/23 Transit: 20965 GEANT The GEANT IP Service, NL 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 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 /12:23 /13:37 /14:68 /15:155 /16:2160 /17:481 /18:496 /19:738 /20:915 /21:944 /22:1565 /23:1681 /24:11382 /25:88 /26:65 /27:78 /28:18 /29:20 /30:16 /31:1 /32:17 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 15169 273 829 GOOGLE, US 36914 246 258 KENET-AS, KE 8895 158 163 ISU Internet Services Unit ISU, SA 6939 125 239 HURRICANE, US 32440 79 108 LONI, US 8075 62 354 MICROSOFT-CORP-MSN-AS-BLOCK, US 23024 52 113 OCDE, US 1916 39 258 Rede Nacional de Ensino e Pesquisa, BR 18632 34 66 VOLCANO-VISION, US 327700 34 40 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 8:8 12:1 13:1 14:89 23:14 24:3 31:7 34:2 35:3 38:9 40:1 41:144 42:10 43:7 44:6 45:43 46:6 47:38 49:9 50:4 52:2 58:1 59:19 60:4 61:3 62:20 63:38 64:86 65:8 66:57 67:44 68:8 69:25 70:12 71:1 72:17 74:118 76:41 77:10 78:3 79:10 80:12 81:26 82:6 83:6 84:12 85:43 86:15 87:1 89:11 91:50 92:4 93:4 94:8 95:2 97:2 98:2 101:2 102:33 103:265 104:86 107:54 108:48 109:10 110:2 111:17 113:4 114:23 116:6 117:61 118:32 119:18 121:28 122:8 123:8 124:38 125:4 128:87 129:42 130:88 131:60 132:62 133:155 134:107 135:1 136:201 137:134 138:11 139:6 140:49 141:1 142:262 143:29 144:28 145:4 146:131 147:59 148:193 149:12 150:42 151:11 152:136 153:14 154:33 155:65 156:68 157:23 158:38 159:115 160:27 161:36 162:22 163:80 164:10 165:46 166:2 167:16 168:125 169:8 170:89 171:1 172:92 173:86 175:27 176:9 177:6 178:1 179:12 180:15 181:5 182:1 184:4 185:76 186:3 187:17 188:13 189:3 190:18 191:14 192:1465 193:302 194:149 195:95 196:203 197:164 198:577 199:306 200:267 201:38 202:630 203:437 204:366 205:145 206:193 207:191 208:87 209:152 210:184 211:3 212:173 213:6 214:8 216:129 217:12 218:22 219:6 220:17 222:2 223:16 End of report