IPv4 R&E Routing Table Report 20:30 GMT Wed 26 Feb, 2025 IPv4 BGP Table (R&E) as seen at PREGINET. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/PREGINET/ Analysis Summary ---------------- BGP routing table entries examined: 159583 Prefixes after maximum aggregation (per Origin AS): 64596 Deaggregation factor: 2.47 Unique aggregates announced (without unneeded subnets): 92271 Number of IPv4 prefixes with a valid ROA: 86352 Number of IPv4 prefixes with an invalid ROA: 65 Number of IPv4 prefixes with no ROA: 73166 Total ASes present in the Internet Routing Table: 14743 Prefixes per ASN: 10.82 Origin-only ASes present in the Internet Routing Table: 12489 Origin ASes announcing only one prefix: 5956 Transit ASes present in the Internet Routing Table: 2254 Transit-only ASes present in the Internet Routing Table: 499 Paths with bogon ASNs present in the IPv4 Routing Table: 17 Average AS path length visible in the Internet Routing Table: 6.7 Max AS path length visible: 40 Max AS path prepend of ASN ( 37447) 36 Prefixes from unregistered ASNs in the Routing Table: 52 Number of instances of unregistered ASNs: 70 Number of 32-bit ASNs allocated by the RIRs: 46200 Number of 32-bit ASNs visible in the Routing Table: 7301 Prefixes from 32-bit ASNs in the Routing Table: 30103 Number of bogon 32-bit ASNs visible in the Routing Table: 38 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 42 Number of addresses announced to Internet: 509388288 Equivalent to 30 /8s, 92 /16s and 166 /24s Percentage of available address space announced: 13.8 Percentage of allocated address space announced: 13.8 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: 38568 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 77871 Total APNIC prefixes after maximum aggregation: 25881 APNIC Deaggregation factor: 3.01 Prefixes being announced from the APNIC address blocks: 76220 Unique aggregates announced from the APNIC address blocks: 37677 APNIC Region origin ASes present in the Internet Routing Table: 5002 APNIC Prefixes per ASN: 15.24 APNIC Region origin ASes announcing only one prefix: 1840 APNIC Region transit ASes present in the Internet Routing Table: 738 Average APNIC Region AS path length visible: 7.4 Max APNIC Region AS path length visible: 39 Number of APNIC region 32-bit ASNs visible in the Routing Table: 3198 Number of APNIC addresses announced to Internet: 191827712 Equivalent to 11 /8s, 111 /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, 131072-155961 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: 27353 Total ARIN prefixes after maximum aggregation: 14808 ARIN Deaggregation factor: 1.85 Prefixes being announced from the ARIN address blocks: 26979 Unique aggregates announced from the ARIN address blocks: 20952 ARIN Region origin ASes present in the Internet Routing Table: 2165 ARIN Prefixes per ASN: 12.46 ARIN Region origin ASes announcing only one prefix: 1011 ARIN Region transit ASes present in the Internet Routing Table: 232 Average ARIN Region AS path length visible: 5.1 Max ARIN Region AS path length visible: 35 Number of ARIN region 32-bit ASNs visible in the Routing Table: 470 Number of ARIN addresses announced to Internet: 168381440 Equivalent to 10 /8s, 9 /16s and 76 /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, 393216-402332 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, 45/8, 47/8, 48/8, 50/8, 52/8, 54/8, 55/8, 56/8, 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: 39722 Total RIPE prefixes after maximum aggregation: 18751 RIPE Deaggregation factor: 2.12 Prefixes being announced from the RIPE address blocks: 40319 Unique aggregates announced from the RIPE address blocks: 25293 RIPE Region origin ASes present in the Internet Routing Table: 4620 RIPE Prefixes per ASN: 8.73 RIPE Region origin ASes announcing only one prefix: 2121 RIPE Region transit ASes present in the Internet Routing Table: 662 Average RIPE Region AS path length visible: 6.3 Max RIPE Region AS path length visible: 25 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1623 Number of RIPE addresses announced to Internet: 121864448 Equivalent to 7 /8s, 67 /16s and 129 /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, 53/8, 57/8, 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: 13218 Total LACNIC prefixes after maximum aggregation: 4637 LACNIC Deaggregation factor: 2.85 Prefixes being announced from the LACNIC address blocks: 12873 Unique aggregates announced from the LACNIC address blocks: 6281 LACNIC Region origin ASes present in the Internet Routing Table: 2324 LACNIC Prefixes per ASN: 5.54 LACNIC Region origin ASes announcing only one prefix: 945 LACNIC Region transit ASes present in the Internet Routing Table: 503 Average LACNIC Region AS path length visible: 7.2 Max LACNIC Region AS path length visible: 37 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 1947 Number of LACNIC addresses announced to Internet: 21174272 Equivalent to 1 /8s, 67 /16s and 24 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-274844 + 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: 1367 Total AfriNIC prefixes after maximum aggregation: 478 AfriNIC Deaggregation factor: 2.86 Prefixes being announced from the AfriNIC address blocks: 3150 Unique aggregates announced from the AfriNIC address blocks: 2034 AfriNIC Region origin ASes present in the Internet Routing Table: 114 AfriNIC Prefixes per ASN: 27.63 AfriNIC Region origin ASes announcing only one prefix: 39 AfriNIC Region transit ASes present in the Internet Routing Table: 35 Average AfriNIC Region AS path length visible: 7.0 Max AfriNIC Region AS path length visible: 40 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 63 Number of AfriNIC addresses announced to Internet: 6110208 Equivalent to 0 /8s, 93 /16s and 60 /24s AfriNIC AS Blocks 36864-37887, 327680-329727 & ERX transfers AfriNIC Address Blocks 41/8, 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 9808 10150 8753 87 CHINAMOBILE-CN China Mobile Communication 9498 4155 497 265 BBIL-AP BHARTI Airtel Ltd., IN 24560 2837 850 531 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 4766 2011 6036 932 KIXS-AS-KR Korea Telecom, KR 45609 1801 814 335 BHARTI-MOBILITY-AS-AP Bharti Airtel Ltd. 7552 1768 690 529 VIETEL-AS-AP Viettel Group, VN 56046 1583 804 173 CMNET-JIANGSU-AP China Mobile communicati 56041 1545 725 74 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1503 192 53 CMNET-HUNAN-AP China Mobile communication 9919 963 170 64 NCIC-TW New Century InfoComm Tech Co., Lt Complete listing at https://bgp.nsrc.org/REN/PREGINET/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 30036 2420 338 636 MEDIACOM-ENTERPRISE-BUSINESS, US 20115 2232 3095 505 CHARTER-20115, US 16509 2177 3518 1245 AMAZON-02, US 11492 1900 131 1026 CABLEONE, US 714 1232 4391 8 APPLE-ENGINEERING, US 8075 712 16017 603 MICROSOFT-CORP-MSN-AS-BLOCK, US 10796 641 1944 302 TWC-10796-MIDWEST, US 12083 447 191 84 WOW-INTERNET, US 2152 384 39 260 CENIC-2152, US 33363 383 1416 210 BHN-33363, US Complete listing at https://bgp.nsrc.org/REN/PREGINET/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 39891 4179 255 52 ALJAWWALSTC-AS, SA 12389 2220 1997 788 ROSTELECOM-AS, RU 49505 854 92 355 SELECTEL, RU 25019 763 643 292 SAUDINETSTC-AS, SA 50010 664 76 11 NAWRAS-AS Sultanate of Oman, OM 9123 577 36 257 TIMEWEB-AS, RU 9155 431 37 9 QNET Kuwait, KW 20940 402 3388 44 AKAMAI-ASN1, NL 42772 374 63 104 A1-BY-AS, BY 50340 347 34 227 SELECTEL-MSK, RU Complete listing at https://bgp.nsrc.org/REN/PREGINET/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 2385 800 400 UNINET, MX 7738 605 1807 67 V tal, BR 8167 318 1083 46 V tal, BR 1916 235 177 40 Rede Nacional de Ensino e Pesquisa, BR 28201 218 16 28 Companhia Itabirana Telecomunicacoes Ltda 28391 157 10 69 Universidad Juarez Autonoma de Tabasco, M 52251 139 6 9 NORTECH, AR 11014 131 10 26 CPS, AR 271640 129 8 1 UNIVERSIDADE FEDERAL DE VICOSA, BR 11340 108 9 52 Red Universitaria Nacional, CL Complete listing at https://bgp.nsrc.org/REN/PREGINET/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 2018 374 319 71 TENET-1, ZA 36873 199 83 45 VNL1-AS, NG 15399 152 32 34 WANANCHI-, KE 37075 78 248 27 ZAINUGAS, UG 30999 74 25 33 EMTEL-AS-AP, MU 8094 47 48 18 PUKNET, ZA 37315 45 10 5 CipherWave, ZA 23889 43 12 25 MauritiusTelecom, MU 6879 24 2 9 ENSTINET-, EG 37531 21 2 15 AIRTEL-NIGER, NE Complete listing at https://bgp.nsrc.org/REN/PREGINET/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 9808 10150 8753 87 CHINAMOBILE-CN China Mobile Communication 39891 4179 255 52 ALJAWWALSTC-AS, SA 9498 4155 497 265 BBIL-AP BHARTI Airtel Ltd., IN 24560 2837 850 531 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 30036 2420 338 636 MEDIACOM-ENTERPRISE-BUSINESS, US 8151 2385 800 400 UNINET, MX 20115 2232 3095 505 CHARTER-20115, US 12389 2220 1997 788 ROSTELECOM-AS, RU 16509 2177 3518 1245 AMAZON-02, US 4766 2011 6036 932 KIXS-AS-KR Korea Telecom, KR Complete listing at https://bgp.nsrc.org/REN/PREGINET/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 39891 4179 4127 ALJAWWALSTC-AS, SA 9498 4155 3890 BBIL-AP BHARTI Airtel Ltd., IN 24560 2837 2306 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., Telem 8151 2385 1985 UNINET, MX 30036 2420 1784 MEDIACOM-ENTERPRISE-BUSINESS, US 20115 2232 1727 CHARTER-20115, US 56041 1545 1471 CMNET-ZHEJIANG-AP China Mobile communications c 45609 1801 1466 BHARTI-MOBILITY-AS-AP Bharti Airtel Ltd. AS for 56047 1503 1450 CMNET-HUNAN-AP China Mobile communications corp 12389 2220 1432 ROSTELECOM-AS, RU Complete listing at https://bgp.nsrc.org/REN/PREGINET/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 26345 UNALLOCATED 12.21.93.0/24 40264 TWC-40264-WI-MN-UPPERMI 393377 UNALLOCATED 12.195.116.0/24 40264 TWC-40264-WI-MN-UPPERMI 46123 UNALLOCATED 24.73.234.0/24 33363 BHN-33363, US 53771 UNALLOCATED 24.172.253.0/24 11426 TWC-11426-CAROLINAS, US 53657 UNALLOCATED 24.213.247.0/24 11351 TWC-11351-NORTHEAST, US 11835 UNALLOCATED 45.4.236.0/22 14868 Ligga Telecomunicacoes 40186 UNALLOCATED 64.135.35.0/24 13335 CLOUDFLARENET, US 396324 UNALLOCATED 66.57.112.0/24 11426 TWC-11426-CAROLINAS, US 26345 UNALLOCATED 71.13.182.0/24 20115 CHARTER-20115, US 46123 UNALLOCATED 71.46.221.0/24 33363 BHN-33363, US Complete listing at https://bgp.nsrc.org/REN/PREGINET/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/PREGINET/data-spar Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 45.127.96.0/22 Origin: 55933 CLOUDIE-AS-AP Cloudie Limited, HK 45.127.96.0/22 Transit: 6939 HURRICANE, US 45.252.60.0/22 Origin: 997 KLAYER, US 45.252.60.0/22 Transit: 55933 CLOUDIE-AS-AP Cloudie Limited, HK 103.5.136.0/22 Origin: 4686 BEKKOAME BEKKOAME INTERNET INC., JP 103.5.136.0/22 Transit: 10013 FBDC FreeBit Co.,Ltd., JP 103.6.224.0/22 Origin: 4686 BEKKOAME BEKKOAME INTERNET INC., JP 103.6.224.0/22 Transit: 10013 FBDC FreeBit Co.,Ltd., JP 103.8.106.0/24 Origin: 135391 AOFEI-HK AOFEI DATA INTERNATIONAL COMPAN 103.8.106.0/24 Transit: 55888 NINTATSU Nintatsu Global Telecommunicati Complete listing at https://bgp.nsrc.org/REN/PREGINET/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 /8:1 /9:2 /10:13 /11:13 /12:48 /13:79 /14:162 /15:396 /16:2492 /17:1385 /18:2802 /19:4426 /20:7777 /21:9401 /22:17126 /23:16406 /24:97053 /25:1 /26:0 /27:0 /28:0 /29:0 /30:0 /31:0 /32:0 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 39891 3321 4179 ALJAWWALSTC-AS, SA 30036 2105 2420 MEDIACOM-ENTERPRISE-BUSINESS, US 11492 1336 1900 CABLEONE, US 12389 1324 2220 ROSTELECOM-AS, RU 8151 1303 2385 UNINET, MX 49505 590 854 SELECTEL, RU 50010 551 664 NAWRAS-AS Sultanate of Oman, OM 20115 548 2232 CHARTER-20115, US 16509 478 2177 AMAZON-02, US 9123 463 577 TIMEWEB-AS, RU Complete listing at https://bgp.nsrc.org/REN/PREGINET/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:281 2:312 3:96 5:1040 6:4 8:58 12:84 13:85 14:432 15:57 16:60 17:314 18:102 20:23 23:777 24:505 25:2 27:621 31:525 32:2 34:3 35:37 36:1353 37:570 38:525 39:688 40:1 41:62 42:169 43:674 44:16 45:2498 46:747 47:63 49:204 50:324 51:138 52:259 54:41 57:28 58:289 59:461 60:95 61:813 62:557 63:131 64:390 65:290 66:308 67:320 68:68 69:250 70:34 71:79 72:244 74:205 75:66 76:55 77:484 78:453 79:239 80:257 81:350 82:357 83:171 84:176 85:335 86:136 87:303 88:98 89:492 90:132 91:1383 92:426 93:935 94:682 95:1456 96:272 97:146 98:78 99:47 101:527 102:119 103:8195 104:393 105:181 106:290 107:112 108:137 109:426 110:260 111:2105 112:914 113:392 114:841 115:275 116:378 117:1372 118:402 119:299 120:1231 121:404 122:1818 123:492 124:351 125:1589 126:1 128:395 129:56 130:133 131:188 132:46 133:305 134:163 135:25 136:81 137:161 138:343 139:236 140:312 141:241 142:111 143:160 144:116 145:98 146:381 147:250 148:373 149:241 150:275 151:493 152:459 153:36 154:893 155:182 156:487 157:284 158:133 159:395 160:658 161:148 162:263 163:263 164:144 165:226 166:62 167:206 168:488 169:87 170:610 171:157 172:217 173:985 174:121 175:559 176:695 177:608 178:665 179:224 180:487 181:174 182:1602 183:1066 184:134 185:2312 186:226 187:501 188:615 189:315 190:512 191:111 192:1765 193:1186 194:950 195:786 196:265 197:116 198:744 199:542 200:781 201:634 202:2480 203:2226 204:281 205:275 206:335 207:319 208:242 209:309 210:1496 211:1160 212:790 213:546 214:9 216:398 217:556 218:796 219:73 220:591 221:370 222:131 223:1061 End of report