IPv4 R&E Routing Table Report 22:00 GMT Wed 24 Aug, 2022 IPv4 BGP Table (R&E) as seen at Internet2. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/Internet2/ Analysis Summary ---------------- BGP routing table entries examined: 22385 Prefixes after maximum aggregation (per Origin AS): 12584 Deaggregation factor: 1.78 Unique aggregates announced (without unneeded subnets): 14626 Number of IPv4 prefixes with a valid ROA: 7616 Number of IPv4 prefixes with an invalid ROA: 66 Number of IPv4 prefixes with no ROA: 14703 Total ASes present in the Internet Routing Table: 2787 Prefixes per ASN: 8.03 Origin-only ASes present in the Internet Routing Table: 2402 Origin ASes announcing only one prefix: 1079 Transit ASes present in the Internet Routing Table: 385 Transit-only ASes present in the Internet Routing Table: 61 Paths with bogon ASNs present in the IPv4 Routing Table: 0 Average AS path length visible in the Internet Routing Table: 3.3 Max AS path length visible: 16 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: 40032 Number of 32-bit ASNs visible in the Routing Table: 640 Prefixes from 32-bit ASNs in the Routing Table: 1794 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: 4 Number of addresses announced to Internet: 243222520 Equivalent to 14 /8s, 127 /16s and 71 /24s Percentage of available address space announced: 6.6 Percentage of allocated address space announced: 6.6 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: 2885 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 4615 Total APNIC prefixes after maximum aggregation: 2315 APNIC Deaggregation factor: 1.99 Prefixes being announced from the APNIC address blocks: 4678 Unique aggregates announced from the APNIC address blocks: 2686 APNIC Region origin ASes present in the Internet Routing Table: 590 APNIC Prefixes per ASN: 7.93 APNIC Region origin ASes announcing only one prefix: 261 APNIC Region transit ASes present in the Internet Routing Table: 69 Average APNIC Region AS path length visible: 3.8 Max APNIC Region AS path length visible: 16 Number of APNIC region 32-bit ASNs visible in the Routing Table: 232 Number of APNIC addresses announced to Internet: 46060096 Equivalent to 2 /8s, 190 /16s and 210 /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: 11816 Total ARIN prefixes after maximum aggregation: 6629 ARIN Deaggregation factor: 1.78 Prefixes being announced from the ARIN address blocks: 11633 Unique aggregates announced from the ARIN address blocks: 7828 ARIN Region origin ASes present in the Internet Routing Table: 1247 ARIN Prefixes per ASN: 9.33 ARIN Region origin ASes announcing only one prefix: 431 ARIN Region transit ASes present in the Internet Routing Table: 169 Average ARIN Region AS path length visible: 3.0 Max ARIN Region AS path length visible: 13 Number of ARIN region 32-bit ASNs visible in the Routing Table: 181 Number of ARIN addresses announced to Internet: 132321688 Equivalent to 7 /8s, 227 /16s and 17 /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: 3579 Total RIPE prefixes after maximum aggregation: 2857 RIPE Deaggregation factor: 1.25 Prefixes being announced from the RIPE address blocks: 3694 Unique aggregates announced from the RIPE address blocks: 3015 RIPE Region origin ASes present in the Internet Routing Table: 678 RIPE Prefixes per ASN: 5.45 RIPE Region origin ASes announcing only one prefix: 302 RIPE Region transit ASes present in the Internet Routing Table: 99 Average RIPE Region AS path length visible: 3.6 Max RIPE Region AS path length visible: 14 Number of RIPE region 32-bit ASNs visible in the Routing Table: 136 Number of RIPE addresses announced to Internet: 58031360 Equivalent to 3 /8s, 117 /16s and 125 /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: 1415 Total LACNIC prefixes after maximum aggregation: 564 LACNIC Deaggregation factor: 2.51 Prefixes being announced from the LACNIC address blocks: 1422 Unique aggregates announced from the LACNIC address blocks: 785 LACNIC Region origin ASes present in the Internet Routing Table: 157 LACNIC Prefixes per ASN: 9.06 LACNIC Region origin ASes announcing only one prefix: 61 LACNIC Region transit ASes present in the Internet Routing Table: 24 Average LACNIC Region AS path length visible: 4.0 Max LACNIC Region AS path length visible: 11 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 65 Number of LACNIC addresses announced to Internet: 4177440 Equivalent to 0 /8s, 63 /16s and 190 /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: 954 Total AfriNIC prefixes after maximum aggregation: 213 AfriNIC Deaggregation factor: 4.48 Prefixes being announced from the AfriNIC address blocks: 954 Unique aggregates announced from the AfriNIC address blocks: 308 AfriNIC Region origin ASes present in the Internet Routing Table: 49 AfriNIC Prefixes per ASN: 19.47 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: 12 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 26 Number of AfriNIC addresses announced to Internet: 2630912 Equivalent to 0 /8s, 40 /16s and 37 /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 573 2156 457 SINET-AS Research Organization of Infor 7497 433 182 24 CSTNET-AS-AP Computer Network Informati 1237 188 74 134 KREONET-AS-KR KISTI, KR 7575 175 329 121 AARNET-AS-AP Australian Academic and Re 58647 175 18 2 KAGAWAU-AS Kagawa University, JP 4538 128 4192 73 ERX-CERNET-BKB China Education and Rese 55824 115 18 11 NKN-CORE-NW NKN Core Network, IN 4621 78 37 10 UNINET-AS-AP UNINET-, TH 23570 59 5 11 INCHEON-AS-KR UNIVERSITY OF INCHEON, KR 2697 54 3 32 ERX-ERNET-AS Education and Research Net Complete listing at https://bgp.nsrc.org/REN/Internet2/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 2826 4569 1247 AMAZON-02, US 14618 624 3991 482 AMAZON-AES, US 668 219 703 181 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 136 18 4 NETBLK-RCOEK, US 1 122 2 46 LVLT-1, US 270 120 329 85 AS270, US 23024 114 7 17 OCDE, US Complete listing at https://bgp.nsrc.org/REN/Internet2/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 98 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 1930 58 81 53 RCCN Fundacao para a Ciencia e a Tecnol Complete listing at https://bgp.nsrc.org/REN/Internet2/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 50 36 18 FUNDACAO DE AMPARO A PESQUISA DO ESTADO 61468 46 3 15 CEDIA, EC 4270 42 16 1 Red de Interconexion Universitaria, AR 19611 37 17 2 Associacao Antonio Vieira - Unisinos, B 28614 37 2 2 Fundacao Universidade Regional de Blume 263282 37 5 12 FUNDACAO UNIVERSIDADE DO OESTE DE SANTA Complete listing at https://bgp.nsrc.org/REN/Internet2/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 235 82 3 KENET-AS, KE 2561 67 4 32 EUN, EG 8094 48 48 15 PUKNET, ZA 327687 39 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/Internet2/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 2826 4569 1247 AMAZON-02, US 14618 624 3991 482 AMAZON-AES, US 2907 573 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 36914 235 82 3 KENET-AS, KE 668 219 703 181 DNIC-AS-00668, US 376 203 178 152 RISQ-AS, CA 5786 200 16 1 UPRENET, PR Complete listing at https://bgp.nsrc.org/REN/Internet2/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 235 232 KENET-AS, KE 5786 200 199 UPRENET, PR 8895 180 176 ISU Internet Services Unit ISU, SA 58647 175 173 KAGAWAU-AS Kagawa University, JP 14618 624 142 AMAZON-AES, US 1916 176 132 Rede Nacional de Ensino e Pesquisa, BR 18558 136 132 NETBLK-RCOEK, US 2907 573 116 SINET-AS Research Organization of Information a Complete listing at https://bgp.nsrc.org/REN/Internet2/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/Internet2/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/Internet2/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: 11537 INTERNET2-RESEARCH-EDU, US 198.135.168.0/24 Origin: 14618 AMAZON-AES, US 198.135.168.0/24 Transit: 16509 AMAZON-02, US 216.169.147.0/24 Origin: 14618 AMAZON-AES, US 216.169.147.0/24 Transit: 16509 AMAZON-02, US Complete listing at https://bgp.nsrc.org/REN/Internet2/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 /11:3 /12:17 /13:25 /14:59 /15:174 /16:2092 /17:463 /18:472 /19:606 /20:985 /21:995 /22:1609 /23:1763 /24:12762 /25:87 /26:55 /27:149 /28:7 /29:54 /30:0 /31:0 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 16509 431 2826 AMAZON-02, US 36914 222 235 KENET-AS, KE 14618 207 624 AMAZON-AES, US 8895 175 180 ISU Internet Services Unit ISU, SA 32440 75 90 LONI, US 23024 53 114 OCDE, US 1 38 122 LVLT-1, US 46115 32 35 LUTHER, US 25977 31 45 HCCS, US 28614 31 37 Fundacao Universidade Regional de Blumenau, BR Complete listing at https://bgp.nsrc.org/REN/Internet2/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:3 3:84 4:2 5:16 6:4 8:2 12:1 13:58 14:86 15:84 16:5 18:62 23:49 24:3 31:7 35:10 37:1 38:9 40:1 41:130 42:10 44:5 45:50 46:10 47:1 49:10 50:8 52:736 54:250 58:2 59:20 60:4 61:3 62:10 63:38 64:142 65:12 66:62 67:61 68:17 69:45 70:27 71:16 72:16 74:72 76:42 77:9 78:3 79:10 80:18 81:27 82:6 83:6 84:5 85:47 86:6 87:2 88:1 89:12 91:54 92:1 93:4 94:4 95:4 96:6 97:1 98:13 99:60 101:6 102:14 103:343 104:106 107:1 108:22 109:12 110:4 111:16 114:23 115:1 116:8 117:61 118:32 119:23 121:27 122:11 123:8 124:39 125:4 128:86 129:46 130:144 131:81 132:59 133:145 134:101 135:2 136:214 137:87 138:12 139:17 140:59 141:5 142:54 143:31 144:40 145:2 146:131 147:66 148:201 149:15 150:130 151:7 152:82 153:13 154:28 155:73 156:70 157:29 158:47 159:165 160:31 161:31 162:52 163:83 164:21 165:66 166:1 167:22 168:168 169:14 170:115 172:10 173:19 174:1 175:30 176:12 177:9 178:2 179:11 180:18 181:1 182:4 184:4 185:68 186:2 187:19 188:14 189:3 190:34 191:35 192:1515 193:320 194:132 195:88 196:162 197:140 198:503 199:331 200:215 201:38 202:607 203:437 204:371 205:155 206:208 207:193 208:107 209:132 210:183 211:13 212:175 213:16 214:8 216:160 217:11 218:22 219:6 220:17 222:5 223:4 End of report