IPv4 R&E Routing Table Report 20:30 GMT Fri 23 May, 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: 159852 Prefixes after maximum aggregation (per Origin AS): 63378 Deaggregation factor: 2.52 Unique aggregates announced (without unneeded subnets): 90290 Number of IPv4 prefixes with a valid ROA: 87806 Number of IPv4 prefixes with an invalid ROA: 85 Number of IPv4 prefixes with no ROA: 71961 Total ASes present in the Internet Routing Table: 14687 Prefixes per ASN: 10.88 Origin-only ASes present in the Internet Routing Table: 12430 Origin ASes announcing only one prefix: 6030 Transit ASes present in the Internet Routing Table: 2257 Transit-only ASes present in the Internet Routing Table: 510 Paths with bogon ASNs present in the IPv4 Routing Table: 1 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: 69 Number of instances of unregistered ASNs: 69 Number of 32-bit ASNs allocated by the RIRs: 46499 Number of 32-bit ASNs visible in the Routing Table: 7269 Prefixes from 32-bit ASNs in the Routing Table: 29554 Number of bogon 32-bit ASNs visible in the Routing Table: 2 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 42 Number of addresses announced to Internet: 506512128 Equivalent to 30 /8s, 48 /16s and 195 /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: 38911 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 79135 Total APNIC prefixes after maximum aggregation: 25270 APNIC Deaggregation factor: 3.13 Prefixes being announced from the APNIC address blocks: 77457 Unique aggregates announced from the APNIC address blocks: 36992 APNIC Region origin ASes present in the Internet Routing Table: 5059 APNIC Prefixes per ASN: 15.31 APNIC Region origin ASes announcing only one prefix: 1886 APNIC Region transit ASes present in the Internet Routing Table: 751 Average APNIC Region AS path length visible: 7.3 Max APNIC Region AS path length visible: 37 Number of APNIC region 32-bit ASNs visible in the Routing Table: 3247 Number of APNIC addresses announced to Internet: 189679360 Equivalent to 11 /8s, 78 /16s and 71 /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: 27111 Total ARIN prefixes after maximum aggregation: 14723 ARIN Deaggregation factor: 1.84 Prefixes being announced from the ARIN address blocks: 26577 Unique aggregates announced from the ARIN address blocks: 20567 ARIN Region origin ASes present in the Internet Routing Table: 2133 ARIN Prefixes per ASN: 12.46 ARIN Region origin ASes announcing only one prefix: 1003 ARIN Region transit ASes present in the Internet Routing Table: 220 Average ARIN Region AS path length visible: 5.2 Max ARIN Region AS path length visible: 44 Number of ARIN region 32-bit ASNs visible in the Routing Table: 471 Number of ARIN addresses announced to Internet: 166981120 Equivalent to 9 /8s, 243 /16s and 238 /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: 39827 Total RIPE prefixes after maximum aggregation: 18569 RIPE Deaggregation factor: 2.14 Prefixes being announced from the RIPE address blocks: 40678 Unique aggregates announced from the RIPE address blocks: 25384 RIPE Region origin ASes present in the Internet Routing Table: 4633 RIPE Prefixes per ASN: 8.78 RIPE Region origin ASes announcing only one prefix: 2148 RIPE Region transit ASes present in the Internet Routing Table: 670 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: 1629 Number of RIPE addresses announced to Internet: 125574912 Equivalent to 7 /8s, 124 /16s and 31 /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: 12163 Total LACNIC prefixes after maximum aggregation: 4389 LACNIC Deaggregation factor: 2.77 Prefixes being announced from the LACNIC address blocks: 11652 Unique aggregates announced from the LACNIC address blocks: 5654 LACNIC Region origin ASes present in the Internet Routing Table: 2230 LACNIC Prefixes per ASN: 5.23 LACNIC Region origin ASes announcing only one prefix: 951 LACNIC Region transit ASes present in the Internet Routing Table: 485 Average LACNIC Region AS path length visible: 7.4 Max LACNIC Region AS path length visible: 28 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 1870 Number of LACNIC addresses announced to Internet: 18290432 Equivalent to 1 /8s, 23 /16s and 23 /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: 1547 Total AfriNIC prefixes after maximum aggregation: 378 AfriNIC Deaggregation factor: 4.09 Prefixes being announced from the AfriNIC address blocks: 3446 Unique aggregates announced from the AfriNIC address blocks: 1660 AfriNIC Region origin ASes present in the Internet Routing Table: 103 AfriNIC Prefixes per ASN: 33.46 AfriNIC Region origin ASes announcing only one prefix: 42 AfriNIC Region transit ASes present in the Internet Routing Table: 33 Average AfriNIC Region AS path length visible: 7.1 Max AfriNIC Region AS path length visible: 20 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 52 Number of AfriNIC addresses announced to Internet: 5959936 Equivalent to 0 /8s, 90 /16s and 241 /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 10908 8756 95 CHINAMOBILE-CN China Mobile Communication 9498 4227 500 293 BBIL-AP BHARTI Airtel Ltd., IN 24560 2867 852 534 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 7552 2137 1066 461 VIETEL-AS-AP Viettel Group, VN 4766 1997 6033 935 KIXS-AS-KR Korea Telecom, KR 56046 1856 812 180 CMNET-JIANGSU-AP China Mobile communicati 45609 1849 824 323 BHARTI-MOBILITY-AS-AP Bharti Airtel Ltd. 56041 1591 726 76 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1487 192 53 CMNET-HUNAN-AP China Mobile communication 9919 971 170 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 2416 334 670 MEDIACOM-ENTERPRISE-BUSINESS, US 16509 2238 3629 1282 AMAZON-02, US 20115 2235 3096 513 CHARTER-20115, US 11492 1933 134 1044 CABLEONE, US 714 1238 4391 8 APPLE-ENGINEERING, US 8075 756 16021 638 MICROSOFT-CORP-MSN-AS-BLOCK, US 10796 638 1880 300 TWC-10796-MIDWEST, US 12083 580 192 88 WOW-INTERNET, US 2152 395 44 264 CENIC-2152, US 33363 387 1424 214 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 2311 1999 782 ROSTELECOM-AS PJSC Rostelecom. Technical 25019 920 639 340 SAUDINETSTC-AS, SA 49505 861 92 357 SELECTEL, RU 9123 637 40 285 TIMEWEB-AS, RU 50010 617 76 11 NAWRAS-AS Sultanate of Oman, OM 9198 483 188 175 KAZTELECOM-AS, KZ 9155 428 37 9 QNET Kuwait, KW 21299 424 78 61 KAR-TEL-AS Almaty, Republic of Kazakhstan 42772 373 63 104 A1-BY-AS, BY 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 2004 683 264 UNINET, MX 7738 513 1607 63 V tal, BR 8167 342 1089 44 V tal, BR 1916 242 177 40 Rede Nacional de Ensino e Pesquisa, BR 28201 219 16 28 Companhia Itabirana Telecomunicacoes Ltda 271640 129 8 1 UNIVERSIDADE FEDERAL DE VICOSA, BR 11014 126 10 26 CPS, AR 11340 110 25 52 Red Universitaria Nacional, CL 19089 107 18 45 Scala Data Centers, BR 262287 88 13 74 Latitude.sh LTDA, 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 557 82 3 KENET-AS, KE 2018 373 318 69 TENET-1, ZA 30999 74 25 32 EMTEL-AS-AP, MU 15399 71 6 26 WANANCHI-, KE 23889 49 27 29 MauritiusTelecom, MU 8094 47 48 18 PUKNET, ZA 37215 36 8 1 MAREN, MW 10798 29 2 23 SBICSA, ZA 6879 24 2 9 ENSTINET-, EG 327885 21 4 3 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 10908 8756 95 CHINAMOBILE-CN China Mobile Communication 9498 4227 500 293 BBIL-AP BHARTI Airtel Ltd., IN 39891 4179 255 52 ALJAWWALSTC-AS, SA 24560 2867 852 534 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 30036 2416 334 670 MEDIACOM-ENTERPRISE-BUSINESS, US 12389 2311 1999 782 ROSTELECOM-AS PJSC Rostelecom. Technical 16509 2238 3629 1282 AMAZON-02, US 20115 2235 3096 513 CHARTER-20115, US 7552 2137 1066 461 VIETEL-AS-AP Viettel Group, VN 8151 2004 683 264 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 4227 3934 BBIL-AP BHARTI Airtel Ltd., IN 24560 2867 2333 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., Telem 30036 2416 1746 MEDIACOM-ENTERPRISE-BUSINESS, US 8151 2004 1740 UNINET, MX 20115 2235 1722 CHARTER-20115, US 7552 2137 1676 VIETEL-AS-AP Viettel Group, VN 56046 1856 1676 CMNET-JIANGSU-AP China Mobile communications co 12389 2311 1529 ROSTELECOM-AS PJSC Rostelecom. Technical Team, 45609 1849 1526 BHARTI-MOBILITY-AS-AP Bharti Airtel Ltd. AS for 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 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 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 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 103.12.68.0/22 Origin: 152194 CTGSERVERLIMITED-AS-AP CTG Server Limite 103.12.68.0/22 Transit: 17476 CHL-AS-AP CloudRadium HK Limited, HK 103.12.68.0/24 Origin: 152194 CTGSERVERLIMITED-AS-AP CTG Server Limite 103.12.68.0/24 Transit: 17476 CHL-AS-AP CloudRadium HK Limited, HK 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 /12:47 /13:82 /14:164 /15:396 /16:2472 /17:1349 /18:2768 /19:4437 /20:7723 /21:9548 /22:17312 /23:16545 /24:96979 /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 2099 2416 MEDIACOM-ENTERPRISE-BUSINESS, US 12389 1404 2311 ROSTELECOM-AS PJSC Rostelecom. Technical Team, RU 11492 1325 1933 CABLEONE, US 8151 1103 2004 UNINET, MX 49505 597 861 SELECTEL, RU 20115 552 2235 CHARTER-20115, US 36914 533 557 KENET-AS, KE 9123 517 637 TIMEWEB-AS, RU 50010 515 617 NAWRAS-AS Sultanate of Oman, OM Complete listing at https://bgp.nsrc.org/REN/PREGINET/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:163 2:325 3:105 5:1098 8:78 12:79 13:89 14:393 15:58 16:63 17:325 18:74 20:28 23:715 24:593 25:2 27:613 31:534 32:2 34:3 35:37 36:1868 37:627 38:533 39:703 40:1 41:249 42:116 43:672 44:23 45:2321 46:786 47:64 49:208 50:319 51:138 52:259 54:62 57:28 58:267 59:452 60:95 61:782 62:553 63:129 64:351 65:283 66:301 67:292 68:76 69:265 70:48 71:83 72:246 74:198 75:65 76:62 77:487 78:461 79:241 80:225 81:344 82:359 83:183 84:185 85:376 86:116 87:312 88:98 89:470 90:134 91:1398 92:453 93:941 94:784 95:1474 96:265 97:146 98:68 99:47 101:484 102:117 103:8004 104:366 105:9 106:292 107:110 108:147 109:467 110:229 111:2148 112:972 113:300 114:831 115:379 116:425 117:1375 118:335 119:262 120:1315 121:427 122:1727 123:392 124:328 125:1587 126:5 128:382 129:66 130:125 131:212 132:53 133:302 134:163 135:24 136:78 137:168 138:322 139:220 140:324 141:194 142:81 143:167 144:128 145:137 146:372 147:229 148:196 149:196 150:227 151:521 152:453 153:37 154:920 155:192 156:462 157:285 158:128 159:395 160:640 161:143 162:272 163:316 164:143 165:225 166:45 167:192 168:596 169:70 170:479 171:193 172:230 173:977 174:121 175:558 176:727 177:521 178:687 179:193 180:479 181:123 182:1621 183:1114 184:138 185:2246 186:212 187:500 188:597 189:311 190:488 191:86 192:1837 193:1119 194:918 195:776 196:307 197:376 198:772 199:556 200:803 201:535 202:2495 203:2231 204:285 205:261 206:303 207:319 208:244 209:314 210:1490 211:1184 212:758 213:515 216:348 217:555 218:807 219:63 220:568 221:405 222:133 223:1198 End of report