IPv4 R&E Routing Table Report 17:00 GMT Fri 23 Sep, 2022 IPv4 BGP Table (R&E) as seen at GEANT. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/GEANT/ Analysis Summary ---------------- BGP routing table entries examined: 18795 Prefixes after maximum aggregation (per Origin AS): 10738 Deaggregation factor: 1.75 Unique aggregates announced (without unneeded subnets): 11955 Number of IPv4 prefixes with a valid ROA: 4279 Number of IPv4 prefixes with an invalid ROA: 69 Number of IPv4 prefixes with no ROA: 14447 Total ASes present in the Internet Routing Table: 2783 Prefixes per ASN: 6.75 Origin-only ASes present in the Internet Routing Table: 2411 Origin ASes announcing only one prefix: 1079 Transit ASes present in the Internet Routing Table: 372 Transit-only ASes present in the Internet Routing Table: 58 Paths with bogon ASNs present in the IPv4 Routing Table: 0 Average AS path length visible in the Internet Routing Table: 3.8 Max AS path length visible: 17 Max AS path prepend of ASN ( 1149) 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: 40221 Number of 32-bit ASNs visible in the Routing Table: 649 Prefixes from 32-bit ASNs in the Routing Table: 1823 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: 207043270 Equivalent to 12 /8s, 87 /16s and 58 /24s Percentage of available address space announced: 5.6 Percentage of allocated address space announced: 5.6 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: 2214 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 4727 Total APNIC prefixes after maximum aggregation: 2317 APNIC Deaggregation factor: 2.04 Prefixes being announced from the APNIC address blocks: 4728 Unique aggregates announced from the APNIC address blocks: 2625 APNIC Region origin ASes present in the Internet Routing Table: 591 APNIC Prefixes per ASN: 8.00 APNIC Region origin ASes announcing only one prefix: 259 APNIC Region transit ASes present in the Internet Routing Table: 67 Average APNIC Region AS path length visible: 3.6 Max APNIC Region AS path length visible: 17 Number of APNIC region 32-bit ASNs visible in the Routing Table: 231 Number of APNIC addresses announced to Internet: 46105152 Equivalent to 2 /8s, 191 /16s and 130 /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: 8006 Total ARIN prefixes after maximum aggregation: 4759 ARIN Deaggregation factor: 1.68 Prefixes being announced from the ARIN address blocks: 8016 Unique aggregates announced from the ARIN address blocks: 5332 ARIN Region origin ASes present in the Internet Routing Table: 1233 ARIN Prefixes per ASN: 6.50 ARIN Region origin ASes announcing only one prefix: 431 ARIN Region transit ASes present in the Internet Routing Table: 157 Average ARIN Region AS path length visible: 4.2 Max ARIN Region AS path length visible: 14 Number of ARIN region 32-bit ASNs visible in the Routing Table: 183 Number of ARIN addresses announced to Internet: 96173344 Equivalent to 5 /8s, 187 /16s and 125 /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: 3632 Total RIPE prefixes after maximum aggregation: 2861 RIPE Deaggregation factor: 1.27 Prefixes being announced from the RIPE address blocks: 3624 Unique aggregates announced from the RIPE address blocks: 2890 RIPE Region origin ASes present in the Internet Routing Table: 684 RIPE Prefixes per ASN: 5.30 RIPE Region origin ASes announcing only one prefix: 304 RIPE Region transit ASes present in the Internet Routing Table: 98 Average RIPE Region AS path length visible: 2.8 Max RIPE Region AS path length visible: 14 Number of RIPE region 32-bit ASNs visible in the Routing Table: 139 Number of RIPE addresses announced to Internet: 57968710 Equivalent to 3 /8s, 116 /16s and 136 /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: 581 LACNIC Deaggregation factor: 2.52 Prefixes being announced from the LACNIC address blocks: 1465 Unique aggregates announced from the LACNIC address blocks: 797 LACNIC Region origin ASes present in the Internet Routing Table: 162 LACNIC Prefixes per ASN: 9.04 LACNIC Region origin ASes announcing only one prefix: 62 LACNIC Region transit ASes present in the Internet Routing Table: 25 Average LACNIC Region AS path length visible: 4.7 Max LACNIC Region AS path length visible: 11 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 68 Number of LACNIC addresses announced to Internet: 4156192 Equivalent to 0 /8s, 63 /16s and 107 /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: 960 Total AfriNIC prefixes after maximum aggregation: 215 AfriNIC Deaggregation factor: 4.47 Prefixes being announced from the AfriNIC address blocks: 960 Unique aggregates announced from the AfriNIC address blocks: 309 AfriNIC Region origin ASes present in the Internet Routing Table: 50 AfriNIC Prefixes per ASN: 19.20 AfriNIC Region origin ASes announcing only one prefix: 23 AfriNIC Region transit ASes present in the Internet Routing Table: 11 Average AfriNIC Region AS path length visible: 3.0 Max AfriNIC Region AS path length visible: 11 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 28 Number of AfriNIC addresses announced to Internet: 2639360 Equivalent to 0 /8s, 40 /16s and 70 /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 576 2156 456 SINET-AS Research Organization of Infor 7497 433 182 24 CSTNET-AS-AP Computer Network Informati 1237 190 74 135 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 23570 59 5 11 INCHEON-AS-KR UNIVERSITY OF INCHEON, KR Complete listing at https://bgp.nsrc.org/REN/GEANT/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 668 215 652 175 DNIC-AS-00668, US 376 203 178 152 RISQ-AS, CA 2152 156 507 91 CSUNET-NW, US 18558 137 18 4 NETBLK-RCOEK, US 270 120 329 85 AS270, US 23024 114 7 17 OCDE, US 2920 111 34 7 LACOE, US 5786 108 16 1 UPRENET, PR 32440 92 18 19 LONI, US 32531 90 6 60 FORDHAM-UNIVERSITY, US Complete listing at https://bgp.nsrc.org/REN/GEANT/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 680 281 1935 249 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 100 1520 87 SURFNET-NL SURFnet, The Netherlands, NL 2614 95 27 75 ROEDUNET, RO 137 81 661 76 ASGARR Consortium GARR, IT 553 73 449 73 BELWUE BelWue-Koordination, DE 2200 64 599 59 FR-RENATER Reseau National de telecommu 3267 64 64 28 RUNNET, RU Complete listing at https://bgp.nsrc.org/REN/GEANT/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 96 24 54 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 46 3 15 CEDIA, EC 4270 44 16 1 Red de Interconexion Universitaria, AR 28571 40 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/GEANT/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 2018 375 319 73 TENET-1, ZA 36914 246 82 3 KENET-AS, KE 2561 67 4 32 EUN, EG 8094 48 48 15 PUKNET, ZA 327687 38 28 3 RENU, UG 327700 31 16 1 MoRENet, MZ 6879 24 2 9 ENSTINET-, EG 37182 19 1 14 TERNET, TZ 37074 13 8 2 UG-AS, GH 37501 11 49 6 UOFS, ZA Complete listing at https://bgp.nsrc.org/REN/GEANT/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 2907 576 2156 456 SINET-AS Research Organization of Infor 7497 433 182 24 CSTNET-AS-AP Computer Network Informati 2018 375 319 73 TENET-1, ZA 680 281 1935 249 DFN Verein zur Foerderung eines Deutsch 36914 246 82 3 KENET-AS, KE 668 215 652 175 DNIC-AS-00668, US 376 203 178 152 RISQ-AS, CA 1237 190 74 135 KREONET-AS-KR KISTI, KR 4538 189 4192 73 ERX-CERNET-BKB China Education and Rese 786 186 1775 183 JANET Jisc Services Limited, GB Complete listing at https://bgp.nsrc.org/REN/GEANT/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 375 302 TENET-1, ZA 36914 246 243 KENET-AS, KE 8895 180 176 ISU Internet Services Unit ISU, SA 58647 175 173 KAGAWAU-AS Kagawa University, JP 18558 137 133 NETBLK-RCOEK, US 1916 176 132 Rede Nacional de Ensino e Pesquisa, BR 4538 189 116 ERX-CERNET-BKB China Education and Research Net 5786 108 107 UPRENET, PR 55824 115 104 NKN-CORE-NW NKN Core Network, IN Complete listing at https://bgp.nsrc.org/REN/GEANT/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 22063 UNALLOCATED 153.10.0.0/16 2152 CSUNET-NW, 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/GEANT/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/GEANT/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: 20965 GEANT The GEANT IP Service, NL Complete listing at https://bgp.nsrc.org/REN/GEANT/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 /10:2 /11:1 /12:10 /13:19 /14:36 /15:122 /16:2026 /17:410 /18:448 /19:571 /20:865 /21:889 /22:1424 /23:1570 /24:10150 /25:86 /26:56 /27:87 /28:0 /29:0 /30:0 /31:1 /32:21 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 36914 233 246 KENET-AS, KE 8895 175 180 ISU Internet Services Unit ISU, SA 32440 77 92 LONI, US 23024 53 114 OCDE, US 46115 32 35 LUTHER, US 25977 31 45 HCCS, US 28614 31 37 Fundacao Universidade Regional de Blumenau, BR 200521 31 52 SEAP-AGE, ES 263282 30 37 FUNDACAO UNIVERSIDADE DO OESTE DE SANTA CATARIN 27609 29 45 USC-UNIVERSITY-HOSPITAL, US Complete listing at https://bgp.nsrc.org/REN/GEANT/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:3 5:15 6:4 8:2 12:1 14:86 18:43 23:6 24:3 31:7 35:4 37:2 38:9 40:1 41:126 42:15 44:5 45:36 46:5 47:1 49:10 50:1 52:1 58:11 59:21 60:4 61:3 62:13 63:33 64:51 65:1 66:34 67:43 68:8 69:21 70:2 71:1 72:7 74:50 76:37 77:7 78:3 79:10 80:20 81:28 82:7 83:6 84:8 85:46 86:10 87:1 88:1 89:10 91:47 92:1 93:4 94:4 95:4 96:5 97:1 98:2 101:8 102:11 103:318 104:74 108:8 109:10 110:4 111:16 114:23 116:6 117:61 118:33 119:23 121:29 122:8 123:8 124:39 125:4 128:86 129:37 130:90 131:77 132:60 133:146 134:99 136:113 137:74 138:11 139:5 140:61 141:1 142:39 143:31 144:25 145:2 146:131 147:60 148:191 149:12 150:130 151:6 152:77 153:14 154:28 155:51 156:66 157:23 158:41 159:116 160:26 161:20 162:20 163:75 164:10 165:51 166:1 167:16 168:120 169:10 170:56 172:2 173:7 175:30 176:8 177:11 179:10 180:18 181:1 182:4 184:2 185:47 186:3 187:19 188:13 189:3 190:34 191:36 192:1446 193:314 194:148 195:92 196:162 197:150 198:483 199:275 200:230 201:38 202:634 203:428 204:349 205:125 206:188 207:168 208:66 209:120 210:185 211:13 212:174 213:5 214:8 216:86 217:10 218:22 219:12 220:17 222:6 223:6 End of report