IPv4 R&E Routing Table Report 17:00 GMT Fri 02 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: 18880 Prefixes after maximum aggregation (per Origin AS): 10753 Deaggregation factor: 1.76 Unique aggregates announced (without unneeded subnets): 11974 Number of IPv4 prefixes with a valid ROA: 4230 Number of IPv4 prefixes with an invalid ROA: 71 Number of IPv4 prefixes with no ROA: 14579 Total ASes present in the Internet Routing Table: 2790 Prefixes per ASN: 6.77 Origin-only ASes present in the Internet Routing Table: 2412 Origin ASes announcing only one prefix: 1080 Transit ASes present in the Internet Routing Table: 378 Transit-only ASes present in the Internet Routing Table: 63 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: 40116 Number of 32-bit ASNs visible in the Routing Table: 643 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: 207451590 Equivalent to 12 /8s, 93 /16s and 117 /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: 2210 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 4703 Total APNIC prefixes after maximum aggregation: 2311 APNIC Deaggregation factor: 2.04 Prefixes being announced from the APNIC address blocks: 4704 Unique aggregates announced from the APNIC address blocks: 2617 APNIC Region origin ASes present in the Internet Routing Table: 587 APNIC Prefixes per ASN: 8.01 APNIC Region origin ASes announcing only one prefix: 258 APNIC Region transit ASes present in the Internet Routing Table: 66 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: 229 Number of APNIC addresses announced to Internet: 46102592 Equivalent to 2 /8s, 191 /16s and 120 /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: 8106 Total ARIN prefixes after maximum aggregation: 4769 ARIN Deaggregation factor: 1.70 Prefixes being announced from the ARIN address blocks: 8116 Unique aggregates announced from the ARIN address blocks: 5352 ARIN Region origin ASes present in the Internet Routing Table: 1236 ARIN Prefixes per ASN: 6.57 ARIN Region origin ASes announcing only one prefix: 429 ARIN Region transit ASes present in the Internet Routing Table: 159 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: 182 Number of ARIN addresses announced to Internet: 96460064 Equivalent to 5 /8s, 191 /16s and 221 /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: 3636 Total RIPE prefixes after maximum aggregation: 2865 RIPE Deaggregation factor: 1.27 Prefixes being announced from the RIPE address blocks: 3628 Unique aggregates announced from the RIPE address blocks: 2892 RIPE Region origin ASes present in the Internet Routing Table: 687 RIPE Prefixes per ASN: 5.28 RIPE Region origin ASes announcing only one prefix: 308 RIPE Region transit ASes present in the Internet Routing Table: 100 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: 138 Number of RIPE addresses announced to Internet: 58034502 Equivalent to 3 /8s, 117 /16s and 137 /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: 1468 Total LACNIC prefixes after maximum aggregation: 589 LACNIC Deaggregation factor: 2.49 Prefixes being announced from the LACNIC address blocks: 1468 Unique aggregates announced from the LACNIC address blocks: 802 LACNIC Region origin ASes present in the Internet Routing Table: 163 LACNIC Prefixes per ASN: 9.01 LACNIC Region origin ASes announcing only one prefix: 61 LACNIC Region transit ASes present in the Internet Routing Table: 26 Average LACNIC Region AS path length visible: 4.7 Max LACNIC Region AS path length visible: 12 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 68 Number of LACNIC addresses announced to Internet: 4222752 Equivalent to 0 /8s, 64 /16s and 111 /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: 962 Total AfriNIC prefixes after maximum aggregation: 214 AfriNIC Deaggregation factor: 4.50 Prefixes being announced from the AfriNIC address blocks: 962 Unique aggregates announced from the AfriNIC address blocks: 309 AfriNIC Region origin ASes present in the Internet Routing Table: 49 AfriNIC Prefixes per ASN: 19.63 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: 3.0 Max AfriNIC Region AS path length visible: 11 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 26 Number of AfriNIC addresses announced to Internet: 2631168 Equivalent to 0 /8s, 40 /16s and 38 /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 572 2156 456 SINET-AS Research Organization of Infor 7497 433 182 24 CSTNET-AS-AP Computer Network Informati 1237 189 74 135 KREONET-AS-KR KISTI, KR 4538 188 4176 72 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 668 221 703 181 DNIC-AS-00668, US 376 203 178 152 RISQ-AS, CA 5786 200 16 1 UPRENET, PR 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 32440 90 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 680 282 1951 250 DFN Verein zur Foerderung eines Deutsch 786 186 1775 183 JANET Jisc Services Limited, GB 8895 179 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/GEANT/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 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 41 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/GEANT/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 243 82 3 KENET-AS, KE 2561 67 4 32 EUN, EG 8094 48 48 15 PUKNET, ZA 327687 40 28 3 RENU, UG 327700 34 16 1 MoRENet, MZ 6879 24 2 9 ENSTINET-, EG 37182 20 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 572 2156 456 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 36914 243 82 3 KENET-AS, KE 668 221 703 181 DNIC-AS-00668, US 376 203 178 152 RISQ-AS, CA 5786 200 16 1 UPRENET, PR 1237 189 74 135 KREONET-AS-KR KISTI, KR 4538 188 4176 72 ERX-CERNET-BKB China Education and Rese 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 376 303 TENET-1, ZA 36914 243 240 KENET-AS, KE 5786 200 199 UPRENET, PR 8895 179 175 ISU Internet Services Unit ISU, SA 58647 175 173 KAGAWAU-AS Kagawa University, JP 1916 177 133 Rede Nacional de Ensino e Pesquisa, BR 18558 137 133 NETBLK-RCOEK, US 4538 188 116 ERX-CERNET-BKB China Education and Research Net 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 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/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 /16:2033 /17:407 /18:446 /19:571 /20:864 /21:891 /22:1425 /23:1567 /24:10234 /25:86 /26:56 /27:86 /28:0 /29:0 /30:0 /31:1 /32:22 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 36914 230 243 KENET-AS, KE 8895 174 179 ISU Internet Services Unit ISU, SA 32440 75 90 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 30 51 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 41:131 42:15 44:5 45:35 46:5 47:1 49:10 50:1 52:1 58:11 59:21 60:4 61:3 62:14 63:34 64:51 65:1 66:35 67:43 68:8 69:19 70:2 71:1 72:7 74:50 76:36 77:7 78:3 79:10 80:20 81:28 82:7 83:6 84:8 85:46 86:11 87:1 88:1 89:10 91:47 92:1 93:4 94:4 95:4 96:5 97:1 98:2 101:8 102:14 103:307 104:74 108:8 109:10 110:4 111:16 114:23 116:6 117:61 118:33 119:23 121:28 122:8 123:8 124:39 125:4 128:86 129:38 130:90 131:76 132:59 133:145 134:99 136:200 137:75 138:11 139:5 140:61 141:1 142:39 143:31 144:25 145:2 146:130 147:58 148:191 149:12 150:130 151:6 152:78 153:14 154:28 155:51 156:67 157:25 158:41 159:116 160:26 161:20 162:20 163:75 164:10 165:56 166:1 167:16 168:120 169:10 170:54 172:2 173:7 175:30 176:8 177:11 179:10 180:18 181:1 182:4 184:2 185:44 186:3 187:19 188:13 189:3 190:34 191:36 192:1451 193:315 194:147 195:92 196:162 197:146 198:483 199:285 200:226 201:38 202:633 203:425 204:349 205:124 206:188 207:168 208:66 209:119 210:184 211:13 212:173 213:5 214:8 216:86 217:12 218:22 219:12 220:17 222:6 223:6 End of report