IPv4 R&E Routing Table Report 22:10 GMT Fri 13 Oct, 2023 IPv4 BGP Table (R&E) as seen at CEDIA. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/CEDIA/ Analysis Summary ---------------- BGP routing table entries examined: 25451 Prefixes after maximum aggregation (per Origin AS): 12554 Deaggregation factor: 2.03 Unique aggregates announced (without unneeded subnets): 14141 Number of IPv4 prefixes with a valid ROA: 11796 Number of IPv4 prefixes with an invalid ROA: 225 Number of IPv4 prefixes with no ROA: 13430 Total ASes present in the Internet Routing Table: 2759 Prefixes per ASN: 9.22 Origin-only ASes present in the Internet Routing Table: 2370 Origin ASes announcing only one prefix: 1047 Transit ASes present in the Internet Routing Table: 389 Transit-only ASes present in the Internet Routing Table: 71 Paths with bogon ASNs present in the IPv4 Routing Table: 1 Average AS path length visible in the Internet Routing Table: 4.7 Max AS path length visible: 16 Max AS path prepend of ASN ( 47805) 11 Prefixes from unregistered ASNs in the Routing Table: 3 Number of instances of unregistered ASNs: 3 Number of 32-bit ASNs allocated by the RIRs: 42831 Number of 32-bit ASNs visible in the Routing Table: 636 Prefixes from 32-bit ASNs in the Routing Table: 4693 Number of bogon 32-bit ASNs visible in the Routing Table: 0 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 5 Number of addresses announced to Internet: 242208140 Equivalent to 14 /8s, 111 /16s and 205 /24s Percentage of available address space announced: 6.5 Percentage of allocated address space announced: 6.5 Percentage of available address space allocated: 100.0 Percentage of address space in use by end-sites: 99.5 Total number of prefixes smaller than registry allocations: 3359 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 4682 Total APNIC prefixes after maximum aggregation: 2295 APNIC Deaggregation factor: 2.04 Prefixes being announced from the APNIC address blocks: 4725 Unique aggregates announced from the APNIC address blocks: 2660 APNIC Region origin ASes present in the Internet Routing Table: 545 APNIC Prefixes per ASN: 8.67 APNIC Region origin ASes announcing only one prefix: 226 APNIC Region transit ASes present in the Internet Routing Table: 58 Average APNIC Region AS path length visible: 5.7 Max APNIC Region AS path length visible: 16 Number of APNIC region 32-bit ASNs visible in the Routing Table: 205 Number of APNIC addresses announced to Internet: 45551424 Equivalent to 2 /8s, 183 /16s and 15 /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: 14416 Total ARIN prefixes after maximum aggregation: 6477 ARIN Deaggregation factor: 2.23 Prefixes being announced from the ARIN address blocks: 14223 Unique aggregates announced from the ARIN address blocks: 7251 ARIN Region origin ASes present in the Internet Routing Table: 1232 ARIN Prefixes per ASN: 11.54 ARIN Region origin ASes announcing only one prefix: 432 ARIN Region transit ASes present in the Internet Routing Table: 166 Average ARIN Region AS path length visible: 4.4 Max ARIN Region AS path length visible: 15 Number of ARIN region 32-bit ASNs visible in the Routing Table: 193 Number of ARIN addresses announced to Internet: 131712705 Equivalent to 7 /8s, 217 /16s and 198 /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: 2910 RIPE Deaggregation factor: 1.26 Prefixes being announced from the RIPE address blocks: 3807 Unique aggregates announced from the RIPE address blocks: 3121 RIPE Region origin ASes present in the Internet Routing Table: 694 RIPE Prefixes per ASN: 5.49 RIPE Region origin ASes announcing only one prefix: 307 RIPE Region transit ASes present in the Internet Routing Table: 102 Average RIPE Region AS path length visible: 4.9 Max RIPE Region AS path length visible: 15 Number of RIPE region 32-bit ASNs visible in the Routing Table: 145 Number of RIPE addresses announced to Internet: 58034432 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 196608-216475 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: 1626 Total LACNIC prefixes after maximum aggregation: 699 LACNIC Deaggregation factor: 2.33 Prefixes being announced from the LACNIC address blocks: 1630 Unique aggregates announced from the LACNIC address blocks: 883 LACNIC Region origin ASes present in the Internet Routing Table: 166 LACNIC Prefixes per ASN: 9.82 LACNIC Region origin ASes announcing only one prefix: 57 LACNIC Region transit ASes present in the Internet Routing Table: 29 Average LACNIC Region AS path length visible: 4.5 Max LACNIC Region AS path length visible: 13 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 68 Number of LACNIC addresses announced to Internet: 4181387 Equivalent to 0 /8s, 63 /16s and 205 /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: 1061 Total AfriNIC prefixes after maximum aggregation: 170 AfriNIC Deaggregation factor: 6.24 Prefixes being announced from the AfriNIC address blocks: 1061 Unique aggregates announced from the AfriNIC address blocks: 221 AfriNIC Region origin ASes present in the Internet Routing Table: 49 AfriNIC Prefixes per ASN: 21.65 AfriNIC Region origin ASes announcing only one prefix: 25 AfriNIC Region transit ASes present in the Internet Routing Table: 9 Average AfriNIC Region AS path length visible: 4.3 Max AfriNIC Region AS path length visible: 10 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 25 Number of AfriNIC addresses announced to Internet: 2661632 Equivalent to 0 /8s, 40 /16s and 157 /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 601 2146 464 SINET-AS Research Organization of Infor 7497 435 180 23 CSTNET-AS-AP Computer Network Informati 1237 196 74 142 KREONET-AS-KR KISTI, KR 7575 177 329 120 AARNET-AS-AP Australian Academic and Re 58647 177 18 2 KAGAWAU-AS Kagawa University, JP 4538 130 4192 73 ERX-CERNET-BKB China Education and Rese 55824 126 18 17 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 4762 63 4 1 MAHIDOL-BORDER-AS Mahidol University, T Complete listing at https://bgp.nsrc.org/REN/CEDIA/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 396982 2701 3597 397 GOOGLE-CLOUD-PLATFORM, US 16509 2165 1640 869 AMAZON-02, US 15169 829 1997 61 GOOGLE, US 14618 815 4020 614 AMAZON-AES, US 376 202 178 151 RISQ-AS, CA 5786 197 16 1 UPRENET, PR 36492 157 11 35 GOOGLEWIFI, US 2152 143 507 91 CSUNET-NW, US 18558 141 18 4 NETBLK-RCOEK, US 81 127 521 30 NCREN, US Complete listing at https://bgp.nsrc.org/REN/CEDIA/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 680 283 1903 249 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 559 113 533 105 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 75 469 75 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/CEDIA/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 1916 251 176 43 Rede Nacional de Ensino e Pesquisa, BR 28391 153 10 67 Universidad Juarez Autonoma de Tabasco, 27947 125 0 97 Telconet S.A, EC 11340 115 25 52 Red Universitaria Nacional, CL 271640 72 8 1 UNIVERSIDADE FEDERAL DE VICOSA, BR 4270 51 17 4 Red de Interconexion Universitaria, AR 19611 48 17 2 Associacao Antonio Vieira - Unisinos, B 2715 42 99 32 Fundacao Carlos Chagas Filho de Amparo 28614 38 2 2 Fundacao Universidade Regional de Blume 3596 35 4 3 Universidad Autonoma Metropolitana, MX Complete listing at https://bgp.nsrc.org/REN/CEDIA/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 2018 382 319 71 TENET-1, ZA 36914 252 82 3 KENET-AS, KE 327687 163 28 3 RENU, UG 8094 48 48 15 PUKNET, ZA 327700 40 16 1 MoRENet, MZ 3208 32 2 1 ARN, DZ 6879 24 2 9 ENSTINET-, EG 37074 14 8 2 UG-AS, GH 37501 11 49 6 UOFS, ZA 37654 10 1 6 RwEdNet-AS, RW Complete listing at https://bgp.nsrc.org/REN/CEDIA/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 396982 2701 3597 397 GOOGLE-CLOUD-PLATFORM, US 16509 2165 1640 869 AMAZON-02, US 15169 829 1997 61 GOOGLE, US 14618 815 4020 614 AMAZON-AES, US 2907 601 2146 464 SINET-AS Research Organization of Infor 7497 435 180 23 CSTNET-AS-AP Computer Network Informati 2018 382 319 71 TENET-1, ZA 680 283 1903 249 DFN Verein zur Foerderung eines Deutsch 36914 252 82 3 KENET-AS, KE 1916 251 176 43 Rede Nacional de Ensino e Pesquisa, BR Complete listing at https://bgp.nsrc.org/REN/CEDIA/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 16509 2165 1296 AMAZON-02, US 15169 829 768 GOOGLE, US 7497 435 412 CSTNET-AS-AP Computer Network Information Cente 2018 382 311 TENET-1, ZA 36914 252 249 KENET-AS, KE 1916 251 208 Rede Nacional de Ensino e Pesquisa, BR 14618 815 201 AMAZON-AES, US 5786 197 196 UPRENET, PR 58647 177 175 KAGAWAU-AS Kagawa University, JP 327687 163 160 RENU, UG Complete listing at https://bgp.nsrc.org/REN/CEDIA/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 64507 DOCUMENT 170.79.91.8/29 27817 Red Nacional Academica de Te 394607 UNALLOCATED 216.100.93.0/24 23024 OCDE, US Complete listing at https://bgp.nsrc.org/REN/CEDIA/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 134.208.0.0/16 Origin: 17711 NDHU-TW National Dong Hwa University, TW 134.208.0.0/16 Transit: 7539 TWAREN-TW National Center for High-perfo 170.39.88.0/24 Origin: 14618 AMAZON-AES, US 170.39.88.0/24 Transit: 16509 AMAZON-02, US 192.31.196.0/24 Origin: 112 RESERVED, ZZ 192.31.196.0/24 Transit: 1103 SURFNET-NL SURFnet, The Netherlands, NL 198.135.168.0/24 Origin: 14618 AMAZON-AES, US 198.135.168.0/24 Transit: 16509 AMAZON-02, US 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/CEDIA/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 /11:4 /12:19 /13:34 /14:81 /15:161 /16:2093 /17:508 /18:482 /19:726 /20:2782 /21:1027 /22:1665 /23:1732 /24:13710 /25:89 /26:68 /27:75 /28:22 /29:85 /30:41 /31:35 /32:9 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 16509 297 2165 AMAZON-02, US 15169 275 829 GOOGLE, US 14618 266 815 AMAZON-AES, US 36914 241 252 KENET-AS, KE 396982 197 2701 GOOGLE-CLOUD-PLATFORM, US 8895 158 163 ISU Internet Services Unit ISU, SA 27947 98 125 Telconet S.A, EC 32440 81 111 LONI, US 23024 52 113 OCDE, US 1916 39 251 Rede Nacional de Ensino e Pesquisa, BR Complete listing at https://bgp.nsrc.org/REN/CEDIA/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:2 3:77 5:20 8:28 12:1 13:45 14:89 15:70 16:112 18:66 23:110 24:3 31:9 34:20 35:47 38:9 40:1 41:118 42:10 43:1 44:9 45:61 46:11 47:1 49:9 50:3 52:558 54:228 59:19 60:5 61:3 62:12 63:36 64:166 65:12 66:71 67:60 68:13 69:34 70:44 71:3 72:13 74:142 76:47 77:11 78:3 79:10 80:13 81:27 82:7 83:6 84:10 85:46 86:4 87:2 88:1 89:17 91:58 92:4 93:4 94:4 95:2 96:7 97:1 98:11 99:47 101:3 102:29 103:296 104:213 107:33 108:104 109:12 111:16 114:31 115:1 116:8 117:61 118:32 119:18 121:28 122:8 123:8 124:40 125:4 128:87 129:49 130:141 131:63 132:64 133:152 134:107 135:3 136:293 137:144 138:10 139:17 140:38 141:5 142:278 143:22 144:39 145:3 146:144 147:63 148:201 149:17 150:44 151:16 152:133 153:14 154:30 155:73 156:67 157:23 158:40 159:148 160:30 161:30 162:85 163:86 164:20 165:51 166:1 167:23 168:160 169:12 170:133 171:1 172:114 173:116 174:2 175:26 176:11 177:6 178:1 179:9 180:15 182:1 184:4 185:103 186:3 187:18 188:19 189:3 190:5 191:13 192:1500 193:311 194:130 195:88 196:199 197:166 198:500 199:298 200:323 201:36 202:632 203:429 204:373 205:147 206:205 207:189 208:133 209:163 210:192 211:14 212:164 213:15 216:167 217:10 218:22 219:5 220:16 222:2 223:14 End of report