IPv4 R&E Routing Table Report 20:30 GMT Mon 07 Apr, 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: 158305 Prefixes after maximum aggregation (per Origin AS): 63998 Deaggregation factor: 2.47 Unique aggregates announced (without unneeded subnets): 90413 Number of IPv4 prefixes with a valid ROA: 86712 Number of IPv4 prefixes with an invalid ROA: 64 Number of IPv4 prefixes with no ROA: 71529 Total ASes present in the Internet Routing Table: 14738 Prefixes per ASN: 10.74 Origin-only ASes present in the Internet Routing Table: 12452 Origin ASes announcing only one prefix: 5959 Transit ASes present in the Internet Routing Table: 2286 Transit-only ASes present in the Internet Routing Table: 521 Paths with bogon ASNs present in the IPv4 Routing Table: 8 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: 85 Number of instances of unregistered ASNs: 90 Number of 32-bit ASNs allocated by the RIRs: 46166 Number of 32-bit ASNs visible in the Routing Table: 7339 Prefixes from 32-bit ASNs in the Routing Table: 30081 Number of bogon 32-bit ASNs visible in the Routing Table: 16 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 55 Number of addresses announced to Internet: 510422016 Equivalent to 30 /8s, 108 /16s and 108 /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: 38622 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 78160 Total APNIC prefixes after maximum aggregation: 25640 APNIC Deaggregation factor: 3.05 Prefixes being announced from the APNIC address blocks: 76390 Unique aggregates announced from the APNIC address blocks: 37071 APNIC Region origin ASes present in the Internet Routing Table: 5097 APNIC Prefixes per ASN: 14.99 APNIC Region origin ASes announcing only one prefix: 1883 APNIC Region transit ASes present in the Internet Routing Table: 744 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: 3286 Number of APNIC addresses announced to Internet: 191005952 Equivalent to 11 /8s, 98 /16s and 133 /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: 26506 Total ARIN prefixes after maximum aggregation: 14813 ARIN Deaggregation factor: 1.79 Prefixes being announced from the ARIN address blocks: 26136 Unique aggregates announced from the ARIN address blocks: 20195 ARIN Region origin ASes present in the Internet Routing Table: 2118 ARIN Prefixes per ASN: 12.34 ARIN Region origin ASes announcing only one prefix: 1011 ARIN Region transit ASes present in the Internet Routing Table: 229 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: 464 Number of ARIN addresses announced to Internet: 171003136 Equivalent to 10 /8s, 49 /16s and 77 /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: 39470 Total RIPE prefixes after maximum aggregation: 18739 RIPE Deaggregation factor: 2.11 Prefixes being announced from the RIPE address blocks: 40347 Unique aggregates announced from the RIPE address blocks: 25531 RIPE Region origin ASes present in the Internet Routing Table: 4641 RIPE Prefixes per ASN: 8.69 RIPE Region origin ASes announcing only one prefix: 2128 RIPE Region transit ASes present in the Internet Routing Table: 691 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: 1631 Number of RIPE addresses announced to Internet: 124653568 Equivalent to 7 /8s, 110 /16s and 16 /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: 12438 Total LACNIC prefixes after maximum aggregation: 4351 LACNIC Deaggregation factor: 2.86 Prefixes being announced from the LACNIC address blocks: 11848 Unique aggregates announced from the LACNIC address blocks: 5683 LACNIC Region origin ASes present in the Internet Routing Table: 2208 LACNIC Prefixes per ASN: 5.37 LACNIC Region origin ASes announcing only one prefix: 888 LACNIC Region transit ASes present in the Internet Routing Table: 481 Average LACNIC Region AS path length visible: 7.5 Max LACNIC Region AS path length visible: 30 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 1883 Number of LACNIC addresses announced to Internet: 18223616 Equivalent to 1 /8s, 22 /16s and 18 /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: 1646 Total AfriNIC prefixes after maximum aggregation: 394 AfriNIC Deaggregation factor: 4.18 Prefixes being announced from the AfriNIC address blocks: 3529 Unique aggregates announced from the AfriNIC address blocks: 1896 AfriNIC Region origin ASes present in the Internet Routing Table: 128 AfriNIC Prefixes per ASN: 27.57 AfriNIC Region origin ASes announcing only one prefix: 49 AfriNIC Region transit ASes present in the Internet Routing Table: 38 Average AfriNIC Region AS path length visible: 7.7 Max AfriNIC Region AS path length visible: 41 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 75 Number of AfriNIC addresses announced to Internet: 5503232 Equivalent to 0 /8s, 83 /16s and 249 /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 10131 8753 88 CHINAMOBILE-CN China Mobile Communication 9498 4157 497 265 BBIL-AP BHARTI Airtel Ltd., IN 24560 2845 848 536 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 7552 2253 1084 453 VIETEL-AS-AP Viettel Group, VN 4766 2017 6035 941 KIXS-AS-KR Korea Telecom, KR 45609 1835 824 321 BHARTI-MOBILITY-AS-AP Bharti Airtel Ltd. 56046 1592 812 181 CMNET-JIANGSU-AP China Mobile communicati 56041 1547 725 74 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1480 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 2259 311 865 MEDIACOM-ENTERPRISE-BUSINESS, US 20115 2230 3096 505 CHARTER-20115, US 16509 2213 3548 1273 AMAZON-02, US 11492 1881 130 1028 CABLEONE, US 714 1208 4391 8 APPLE-ENGINEERING, US 8075 738 16019 623 MICROSOFT-CORP-MSN-AS-BLOCK, US 10796 640 1944 302 TWC-10796-MIDWEST, US 12083 438 191 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 2309 1997 789 ROSTELECOM-AS, RU 25019 914 639 323 SAUDINETSTC-AS, SA 49505 856 92 355 SELECTEL, RU 50010 665 76 11 NAWRAS-AS Sultanate of Oman, OM 9123 599 37 263 TIMEWEB-AS, RU 9155 426 37 9 QNET Kuwait, KW 42772 373 63 104 A1-BY-AS, BY 50340 347 34 227 SELECTEL-MSK, RU 209242 341 31 306 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 1885 686 244 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 217 16 28 Companhia Itabirana Telecomunicacoes Ltda 28391 159 10 71 Universidad Juarez Autonoma de Tabasco, M 271640 129 8 1 UNIVERSIDADE FEDERAL DE VICOSA, BR 11014 128 10 26 CPS, AR 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 547 82 3 KENET-AS, KE 2018 373 318 69 TENET-1, ZA 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 15399 23 2 15 WANANCHI-, KE 37531 19 2 15 AIRTEL-NIGER, NE 327885 17 4 2 Viettel-Tanzania, TZ 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 10131 8753 88 CHINAMOBILE-CN China Mobile Communication 39891 4179 255 52 ALJAWWALSTC-AS, SA 9498 4157 497 265 BBIL-AP BHARTI Airtel Ltd., IN 24560 2845 848 536 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 12389 2309 1997 789 ROSTELECOM-AS, RU 30036 2259 311 865 MEDIACOM-ENTERPRISE-BUSINESS, US 7552 2253 1084 453 VIETEL-AS-AP Viettel Group, VN 20115 2230 3096 505 CHARTER-20115, US 16509 2213 3548 1273 AMAZON-02, US 4766 2017 6035 941 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 4157 3892 BBIL-AP BHARTI Airtel Ltd., IN 24560 2845 2309 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., Telem 7552 2253 1800 VIETEL-AS-AP Viettel Group, VN 20115 2230 1725 CHARTER-20115, US 8151 1885 1641 UNINET, MX 12389 2309 1520 ROSTELECOM-AS, RU 45609 1835 1514 BHARTI-MOBILITY-AS-AP Bharti Airtel Ltd. AS for 56041 1547 1473 CMNET-ZHEJIANG-AP China Mobile communications c 56047 1480 1427 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 /13:82 /14:166 /15:396 /16:2539 /17:1340 /18:2822 /19:4447 /20:7600 /21:9410 /22:17039 /23:16391 /24:95995 /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 1960 2259 MEDIACOM-ENTERPRISE-BUSINESS, US 12389 1406 2309 ROSTELECOM-AS, RU 11492 1314 1881 CABLEONE, US 8151 1032 1885 UNINET, MX 49505 592 856 SELECTEL, RU 50010 552 665 NAWRAS-AS Sultanate of Oman, OM 20115 545 2230 CHARTER-20115, US 36914 523 547 KENET-AS, KE 16509 494 2213 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 2:330 3:100 5:1071 6:4 8:68 12:82 13:87 14:385 15:59 16:63 17:312 18:72 20:28 23:720 24:507 25:2 27:614 31:538 32:2 34:3 35:38 36:1348 37:627 38:536 39:692 40:1 41:243 42:143 43:665 44:19 45:2535 46:772 47:63 49:202 50:305 51:138 52:257 54:41 57:28 58:301 59:453 60:95 61:814 62:554 63:112 64:379 65:286 66:270 67:300 68:65 69:245 70:34 71:80 72:242 74:193 75:64 76:57 77:492 78:452 79:232 80:233 81:353 82:387 83:182 84:182 85:377 86:143 87:301 88:110 89:491 90:132 91:1390 92:424 93:934 94:777 95:1452 96:264 97:143 98:72 99:47 101:467 102:127 103:8232 104:361 105:170 106:292 107:114 108:140 109:436 110:230 111:2093 112:921 113:315 114:838 115:305 116:416 117:1391 118:399 119:292 120:1227 121:418 122:1742 123:462 124:331 125:1582 126:6 128:398 129:62 130:124 131:205 132:47 133:304 134:166 135:23 136:79 137:162 138:321 139:223 140:317 141:184 142:80 143:166 144:119 145:133 146:378 147:257 148:356 149:222 150:265 151:493 152:465 153:37 154:915 155:198 156:475 157:282 158:131 159:356 160:623 161:141 162:231 163:311 164:145 165:223 166:57 167:178 168:336 169:80 170:494 171:197 172:217 173:928 174:118 175:564 176:718 177:555 178:674 179:227 180:492 181:156 182:1605 183:1056 184:135 185:2254 186:191 187:482 188:628 189:300 190:493 191:80 192:1853 193:1110 194:904 195:759 196:238 197:387 198:706 199:518 200:715 201:538 202:2484 203:2182 204:279 205:235 206:293 207:318 208:233 209:272 210:1467 211:1144 212:790 213:539 214:10 216:374 217:512 218:801 219:68 220:575 221:354 222:135 223:1052 End of report