IPv4 R&E Routing Table Report 20:30 GMT Sun 30 Mar, 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: 158013 Prefixes after maximum aggregation (per Origin AS): 63891 Deaggregation factor: 2.47 Unique aggregates announced (without unneeded subnets): 90766 Number of IPv4 prefixes with a valid ROA: 85954 Number of IPv4 prefixes with an invalid ROA: 56 Number of IPv4 prefixes with no ROA: 72003 Total ASes present in the Internet Routing Table: 14825 Prefixes per ASN: 10.66 Origin-only ASes present in the Internet Routing Table: 12525 Origin ASes announcing only one prefix: 6057 Transit ASes present in the Internet Routing Table: 2300 Transit-only ASes present in the Internet Routing Table: 516 Paths with bogon ASNs present in the IPv4 Routing Table: 5 Average AS path length visible in the Internet Routing Table: 6.7 Max AS path length visible: 45 Max AS path prepend of ASN (212940) 40 Prefixes from unregistered ASNs in the Routing Table: 88 Number of instances of unregistered ASNs: 92 Number of 32-bit ASNs allocated by the RIRs: 46117 Number of 32-bit ASNs visible in the Routing Table: 7337 Prefixes from 32-bit ASNs in the Routing Table: 29707 Number of bogon 32-bit ASNs visible in the Routing Table: 10 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 54 Number of addresses announced to Internet: 508926464 Equivalent to 30 /8s, 85 /16s and 154 /24s Percentage of available address space announced: 13.7 Percentage of allocated address space announced: 13.7 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: 39137 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 77016 Total APNIC prefixes after maximum aggregation: 25430 APNIC Deaggregation factor: 3.03 Prefixes being announced from the APNIC address blocks: 75297 Unique aggregates announced from the APNIC address blocks: 36863 APNIC Region origin ASes present in the Internet Routing Table: 5035 APNIC Prefixes per ASN: 14.95 APNIC Region origin ASes announcing only one prefix: 1879 APNIC Region transit ASes present in the Internet Routing Table: 737 Average APNIC Region AS path length visible: 7.3 Max APNIC Region AS path length visible: 36 Number of APNIC region 32-bit ASNs visible in the Routing Table: 3245 Number of APNIC addresses announced to Internet: 189107968 Equivalent to 11 /8s, 69 /16s and 143 /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: 27114 Total ARIN prefixes after maximum aggregation: 14849 ARIN Deaggregation factor: 1.83 Prefixes being announced from the ARIN address blocks: 26765 Unique aggregates announced from the ARIN address blocks: 20784 ARIN Region origin ASes present in the Internet Routing Table: 2155 ARIN Prefixes per ASN: 12.42 ARIN Region origin ASes announcing only one prefix: 1014 ARIN Region transit ASes present in the Internet Routing Table: 232 Average ARIN Region AS path length visible: 5.2 Max ARIN Region AS path length visible: 35 Number of ARIN region 32-bit ASNs visible in the Routing Table: 475 Number of ARIN addresses announced to Internet: 171450880 Equivalent to 10 /8s, 56 /16s and 34 /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: 39706 Total RIPE prefixes after maximum aggregation: 18884 RIPE Deaggregation factor: 2.10 Prefixes being announced from the RIPE address blocks: 40509 Unique aggregates announced from the RIPE address blocks: 25611 RIPE Region origin ASes present in the Internet Routing Table: 4730 RIPE Prefixes per ASN: 8.56 RIPE Region origin ASes announcing only one prefix: 2180 RIPE Region transit ASes present in the Internet Routing Table: 699 Average RIPE Region AS path length visible: 6.2 Max RIPE Region AS path length visible: 45 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1653 Number of RIPE addresses announced to Internet: 124744192 Equivalent to 7 /8s, 111 /16s and 114 /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: 12157 Total LACNIC prefixes after maximum aggregation: 4269 LACNIC Deaggregation factor: 2.85 Prefixes being announced from the LACNIC address blocks: 11655 Unique aggregates announced from the LACNIC address blocks: 5593 LACNIC Region origin ASes present in the Internet Routing Table: 2236 LACNIC Prefixes per ASN: 5.21 LACNIC Region origin ASes announcing only one prefix: 934 LACNIC Region transit ASes present in the Internet Routing Table: 488 Average LACNIC Region AS path length visible: 7.4 Max LACNIC Region AS path length visible: 30 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 1891 Number of LACNIC addresses announced to Internet: 17988864 Equivalent to 1 /8s, 18 /16s and 125 /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: 1932 Total AfriNIC prefixes after maximum aggregation: 397 AfriNIC Deaggregation factor: 4.87 Prefixes being announced from the AfriNIC address blocks: 3733 Unique aggregates announced from the AfriNIC address blocks: 1876 AfriNIC Region origin ASes present in the Internet Routing Table: 128 AfriNIC Prefixes per ASN: 29.16 AfriNIC Region origin ASes announcing only one prefix: 50 AfriNIC Region transit ASes present in the Internet Routing Table: 38 Average AfriNIC Region AS path length visible: 7.5 Max AfriNIC Region AS path length visible: 40 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 73 Number of AfriNIC addresses announced to Internet: 5605120 Equivalent to 0 /8s, 85 /16s and 135 /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 10133 8753 88 CHINAMOBILE-CN China Mobile Communication 9498 4156 497 265 BBIL-AP BHARTI Airtel Ltd., IN 24560 2843 848 537 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 4766 2004 6034 928 KIXS-AS-KR Korea Telecom, KR 45609 1837 824 321 BHARTI-MOBILITY-AS-AP Bharti Airtel Ltd. 7552 1762 693 528 VIETEL-AS-AP Viettel Group, VN 56046 1584 804 173 CMNET-JIANGSU-AP China Mobile communicati 56041 1547 725 74 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1482 192 53 CMNET-HUNAN-AP China Mobile communication 9919 965 170 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 2400 332 675 MEDIACOM-ENTERPRISE-BUSINESS, US 20115 2229 3095 504 CHARTER-20115, US 16509 2196 3549 1257 AMAZON-02, US 11492 1873 130 1024 CABLEONE, US 714 1206 4391 8 APPLE-ENGINEERING, US 8075 733 16019 618 MICROSOFT-CORP-MSN-AS-BLOCK, US 10796 640 1944 302 TWC-10796-MIDWEST, US 12083 440 191 84 WOW-INTERNET, US 2152 387 40 263 CENIC-2152, US 33363 384 1416 211 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 2272 1997 782 ROSTELECOM-AS, RU 25019 875 622 311 SAUDINETSTC-AS, SA 49505 856 92 355 SELECTEL, RU 50010 665 76 11 NAWRAS-AS Sultanate of Oman, OM 9123 595 37 263 TIMEWEB-AS, RU 9155 430 37 9 QNET Kuwait, KW 42772 373 63 104 A1-BY-AS, BY 50340 347 34 227 SELECTEL-MSK, RU 209242 344 31 309 CLOUDFLARESPECTRUM Cloudflare, Inc., US 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 1917 692 255 UNINET, MX 7738 605 1807 67 V tal, BR 8167 342 1089 44 V tal, BR 1916 235 177 40 Rede Nacional de Ensino e Pesquisa, BR 28201 218 16 28 Companhia Itabirana Telecomunicacoes Ltda 52251 138 6 9 NORTECH, AR 11014 129 10 26 CPS, AR 271640 129 8 1 UNIVERSIDADE FEDERAL DE VICOSA, BR 11340 110 25 52 Red Universitaria Nacional, CL 19089 107 18 45 Scala Data Centers, BR 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 36914 544 82 3 KENET-AS, KE 2018 373 318 68 TENET-1, ZA 15399 312 46 14 WANANCHI-, KE 36873 198 83 30 VNL1-AS, NG 23889 49 27 29 MauritiusTelecom, MU 8094 47 48 18 PUKNET, ZA 37215 34 8 1 MAREN, MW 6879 24 2 9 ENSTINET-, EG 327885 20 4 2 Viettel-Tanzania, TZ 37531 19 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 10133 8753 88 CHINAMOBILE-CN China Mobile Communication 39891 4179 255 52 ALJAWWALSTC-AS, SA 9498 4156 497 265 BBIL-AP BHARTI Airtel Ltd., IN 24560 2843 848 537 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 30036 2400 332 675 MEDIACOM-ENTERPRISE-BUSINESS, US 12389 2272 1997 782 ROSTELECOM-AS, RU 20115 2229 3095 504 CHARTER-20115, US 16509 2196 3549 1257 AMAZON-02, US 4766 2004 6034 928 KIXS-AS-KR Korea Telecom, KR 8151 1917 692 255 UNINET, MX 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 4156 3891 BBIL-AP BHARTI Airtel Ltd., IN 24560 2843 2306 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., Telem 30036 2400 1725 MEDIACOM-ENTERPRISE-BUSINESS, US 20115 2229 1725 CHARTER-20115, US 8151 1917 1662 UNINET, MX 45609 1837 1516 BHARTI-MOBILITY-AS-AP Bharti Airtel Ltd. AS for 12389 2272 1490 ROSTELECOM-AS, RU 56041 1547 1473 CMNET-ZHEJIANG-AP China Mobile communications c 56047 1482 1429 CMNET-HUNAN-AP China Mobile communications corp 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 202528 UNALLOCATED 23.143.136.0/24 153371 BACKWAVESLIMITED-AS-AP 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 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 23.161.8.0/24 Origin: 142433 DATAWAVE-AS-AP DATAWAVE GLOBAL LLC, CN 23.161.8.0/24 Transit: 983 AKARI-NETWORKS, US 102.219.4.0/22 Origin: 328932 RESERVED, ZZ 102.219.4.0/22 Transit: 36873 VNL1-AS, NG 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 /13:80 /14:161 /15:397 /16:2525 /17:1342 /18:2796 /19:4425 /20:7549 /21:9181 /22:16924 /23:16361 /24:96194 /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 2083 2400 MEDIACOM-ENTERPRISE-BUSINESS, US 12389 1371 2272 ROSTELECOM-AS, RU 11492 1314 1873 CABLEONE, US 8151 1043 1917 UNINET, MX 49505 592 856 SELECTEL, RU 50010 552 665 NAWRAS-AS Sultanate of Oman, OM 20115 545 2229 CHARTER-20115, US 36914 520 544 KENET-AS, KE 16509 486 2196 AMAZON-02, US Complete listing at https://bgp.nsrc.org/REN/PREGINET/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:197 2:306 3:98 5:1068 6:4 8:61 12:82 13:87 14:380 15:58 16:63 17:313 18:71 20:23 23:720 24:498 25:2 27:594 31:538 32:2 34:3 35:38 36:1347 37:635 38:546 39:693 40:1 41:336 42:145 43:660 44:21 45:2481 46:770 47:63 49:198 50:318 51:138 52:256 54:41 57:29 58:300 59:451 60:95 61:805 62:588 63:129 64:384 65:288 66:303 67:300 68:69 69:252 70:33 71:78 72:246 74:201 75:63 76:56 77:486 78:453 79:234 80:235 81:349 82:375 83:182 84:185 85:348 86:141 87:298 88:112 89:492 90:132 91:1392 92:425 93:934 94:762 95:1469 96:265 97:145 98:72 99:47 101:480 102:126 103:8043 104:373 105:170 106:292 107:115 108:143 109:429 110:230 111:2094 112:916 113:314 114:838 115:302 116:385 117:1349 118:365 119:285 120:1227 121:415 122:1719 123:454 124:331 125:1588 126:3 128:399 129:60 130:132 131:204 132:41 133:304 134:165 135:23 136:79 137:163 138:311 139:226 140:317 141:195 142:80 143:168 144:111 145:133 146:377 147:257 148:164 149:231 150:270 151:495 152:464 153:37 154:902 155:198 156:467 157:286 158:131 159:392 160:659 161:151 162:268 163:305 164:145 165:225 166:58 167:200 168:343 169:79 170:493 171:162 172:214 173:979 174:118 175:561 176:724 177:537 178:695 179:214 180:490 181:191 182:1580 183:1056 184:140 185:2311 186:225 187:466 188:624 189:295 190:488 191:92 192:1864 193:1124 194:919 195:772 196:295 197:429 198:768 199:582 200:758 201:548 202:2446 203:2187 204:289 205:275 206:302 207:320 208:236 209:320 210:1468 211:1140 212:786 213:543 214:10 216:377 217:554 218:797 219:66 220:569 221:354 222:135 223:1047 End of report