IPv4 R&E Routing Table Report 20:30 GMT Mon 09 Jun, 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: 158670 Prefixes after maximum aggregation (per Origin AS): 62623 Deaggregation factor: 2.53 Unique aggregates announced (without unneeded subnets): 89145 Number of IPv4 prefixes with a valid ROA: 87957 Number of IPv4 prefixes with an invalid ROA: 65 Number of IPv4 prefixes with no ROA: 70648 Total ASes present in the Internet Routing Table: 14430 Prefixes per ASN: 11.00 Origin-only ASes present in the Internet Routing Table: 12189 Origin ASes announcing only one prefix: 5916 Transit ASes present in the Internet Routing Table: 2241 Transit-only ASes present in the Internet Routing Table: 493 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: 70 Number of instances of unregistered ASNs: 70 Number of 32-bit ASNs allocated by the RIRs: 46629 Number of 32-bit ASNs visible in the Routing Table: 7178 Prefixes from 32-bit ASNs in the Routing Table: 30032 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: 30 Number of addresses announced to Internet: 496333568 Equivalent to 29 /8s, 149 /16s and 115 /24s Percentage of available address space announced: 13.4 Percentage of allocated address space announced: 13.4 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: 39260 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 77854 Total APNIC prefixes after maximum aggregation: 24310 APNIC Deaggregation factor: 3.20 Prefixes being announced from the APNIC address blocks: 76080 Unique aggregates announced from the APNIC address blocks: 35550 APNIC Region origin ASes present in the Internet Routing Table: 4837 APNIC Prefixes per ASN: 15.73 APNIC Region origin ASes announcing only one prefix: 1789 APNIC Region transit ASes present in the Internet Routing Table: 741 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: 3126 Number of APNIC addresses announced to Internet: 183798272 Equivalent to 10 /8s, 244 /16s and 138 /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: 26494 Total ARIN prefixes after maximum aggregation: 14333 ARIN Deaggregation factor: 1.85 Prefixes being announced from the ARIN address blocks: 26185 Unique aggregates announced from the ARIN address blocks: 20228 ARIN Region origin ASes present in the Internet Routing Table: 2070 ARIN Prefixes per ASN: 12.65 ARIN Region origin ASes announcing only one prefix: 985 ARIN Region transit ASes present in the Internet Routing Table: 215 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: 468 Number of ARIN addresses announced to Internet: 163085312 Equivalent to 9 /8s, 184 /16s and 124 /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: 40188 Total RIPE prefixes after maximum aggregation: 19042 RIPE Deaggregation factor: 2.11 Prefixes being announced from the RIPE address blocks: 40966 Unique aggregates announced from the RIPE address blocks: 25769 RIPE Region origin ASes present in the Internet Routing Table: 4663 RIPE Prefixes per ASN: 8.79 RIPE Region origin ASes announcing only one prefix: 2161 RIPE Region transit ASes present in the Internet Routing Table: 667 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: 1662 Number of RIPE addresses announced to Internet: 125404416 Equivalent to 7 /8s, 121 /16s and 133 /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: 12503 Total LACNIC prefixes after maximum aggregation: 4502 LACNIC Deaggregation factor: 2.78 Prefixes being announced from the LACNIC address blocks: 11999 Unique aggregates announced from the LACNIC address blocks: 5905 LACNIC Region origin ASes present in the Internet Routing Table: 2246 LACNIC Prefixes per ASN: 5.34 LACNIC Region origin ASes announcing only one prefix: 940 LACNIC Region transit ASes present in the Internet Routing Table: 487 Average LACNIC Region AS path length visible: 7.2 Max LACNIC Region AS path length visible: 28 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 1871 Number of LACNIC addresses announced to Internet: 18176000 Equivalent to 1 /8s, 21 /16s and 88 /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: 1561 Total AfriNIC prefixes after maximum aggregation: 386 AfriNIC Deaggregation factor: 4.04 Prefixes being announced from the AfriNIC address blocks: 3410 Unique aggregates announced from the AfriNIC address blocks: 1668 AfriNIC Region origin ASes present in the Internet Routing Table: 101 AfriNIC Prefixes per ASN: 33.76 AfriNIC Region origin ASes announcing only one prefix: 41 AfriNIC Region transit ASes present in the Internet Routing Table: 31 Average AfriNIC Region AS path length visible: 6.5 Max AfriNIC Region AS path length visible: 20 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 51 Number of AfriNIC addresses announced to Internet: 5851392 Equivalent to 0 /8s, 89 /16s and 73 /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 10878 8758 100 CHINAMOBILE-CN China Mobile Communication 9498 4237 500 296 BBIL-AP BHARTI Airtel Ltd., IN 24560 2881 854 529 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 7552 2151 1067 457 VIETEL-AS-AP Viettel Group, VN 56046 2057 812 180 CMNET-JIANGSU-AP China Mobile communicati 4766 1950 6030 915 KIXS-AS-KR Korea Telecom, KR 45609 1853 826 324 BHARTI-MOBILITY-AS-AP Bharti Airtel Ltd. 56041 1637 728 86 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1484 192 50 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 2428 336 645 MEDIACOM-ENTERPRISE-BUSINESS, US 16509 2278 3696 1312 AMAZON-02, US 20115 2243 3096 513 CHARTER-20115, US 11492 1941 135 1048 CABLEONE, US 714 1243 4391 8 APPLE-ENGINEERING, US 8075 762 16021 644 MICROSOFT-CORP-MSN-AS-BLOCK, US 10796 639 1882 301 TWC-10796-MIDWEST, US 12083 582 192 88 WOW-INTERNET, US 2152 401 45 267 CENIC-2152, US 33363 388 1424 215 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 4180 255 53 ALJAWWALSTC-AS, SA 12389 2346 1991 780 ROSTELECOM-AS PJSC Rostelecom. Technical 25019 885 623 323 SAUDINETSTC-AS, SA 49505 860 92 354 SELECTEL, RU 9123 659 41 297 TIMEWEB-AS, RU 50010 618 76 11 NAWRAS-AS Sultanate of Oman, OM 9198 487 191 179 KAZTELECOM-AS, KZ 9155 428 37 9 QNET Kuwait, KW 21299 424 78 61 KAR-TEL-AS Almaty, Republic of Kazakhstan 42772 374 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 2128 696 295 UNINET, MX 7738 510 1527 64 V tal, BR 8167 342 1089 44 V tal, BR 1916 241 177 40 Rede Nacional de Ensino e Pesquisa, BR 28201 219 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 125 10 26 CPS, AR 11340 109 9 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 553 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 55 37 31 MauritiusTelecom, MU 8094 47 48 18 PUKNET, ZA 10798 45 3 35 SBICSA, ZA 37215 36 8 1 MAREN, MW 6879 24 2 9 ENSTINET-, EG 328543 20 5 5 sun-asn, SC 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 10878 8758 100 CHINAMOBILE-CN China Mobile Communication 9498 4237 500 296 BBIL-AP BHARTI Airtel Ltd., IN 39891 4180 255 53 ALJAWWALSTC-AS, SA 24560 2881 854 529 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 30036 2428 336 645 MEDIACOM-ENTERPRISE-BUSINESS, US 12389 2346 1991 780 ROSTELECOM-AS PJSC Rostelecom. Technical 16509 2278 3696 1312 AMAZON-02, US 20115 2243 3096 513 CHARTER-20115, US 7552 2151 1067 457 VIETEL-AS-AP Viettel Group, VN 8151 2128 696 295 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 4180 4127 ALJAWWALSTC-AS, SA 9498 4237 3941 BBIL-AP BHARTI Airtel Ltd., IN 24560 2881 2352 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., Telem 56046 2057 1877 CMNET-JIANGSU-AP China Mobile communications co 8151 2128 1833 UNINET, MX 30036 2428 1783 MEDIACOM-ENTERPRISE-BUSINESS, US 20115 2243 1730 CHARTER-20115, US 7552 2151 1694 VIETEL-AS-AP Viettel Group, VN 12389 2346 1566 ROSTELECOM-AS PJSC Rostelecom. Technical Team, 56041 1637 1551 CMNET-ZHEJIANG-AP China Mobile communications c 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 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 268652 UNALLOCATED 45.165.20.0/22 264493 UNASSIGNED 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 /14:160 /15:392 /16:2375 /17:1284 /18:2730 /19:4388 /20:7606 /21:9589 /22:17328 /23:16536 /24:96124 /25:0 /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 4180 ALJAWWALSTC-AS, SA 30036 2111 2428 MEDIACOM-ENTERPRISE-BUSINESS, US 12389 1440 2346 ROSTELECOM-AS PJSC Rostelecom. Technical Team, RU 11492 1333 1941 CABLEONE, US 8151 1161 2128 UNINET, MX 49505 598 860 SELECTEL, RU 20115 550 2243 CHARTER-20115, US 9123 537 659 TIMEWEB-AS, RU 36914 529 553 KENET-AS, KE 50010 516 618 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) ---------------------------------------------- 1:158 2:325 3:105 5:1116 8:79 12:71 13:95 14:398 15:59 16:63 17:326 18:74 20:28 23:738 24:599 25:2 27:586 31:553 32:2 34:3 35:51 36:1967 37:643 38:542 39:695 40:1 41:243 42:117 43:670 44:22 45:2331 46:793 47:64 49:209 50:326 51:136 52:259 54:62 57:28 58:263 59:437 60:95 61:783 62:564 63:129 64:358 65:164 66:316 67:292 68:73 69:263 70:46 71:82 72:241 74:215 75:68 76:62 77:495 78:454 79:246 80:228 81:344 82:376 83:187 84:195 85:403 86:133 87:320 88:105 89:482 90:136 91:1389 92:464 93:959 94:783 95:1476 96:270 97:145 98:71 99:47 101:487 102:112 103:7828 104:384 105:9 106:292 107:111 108:175 109:457 110:224 111:2103 112:999 113:290 114:829 115:302 116:418 117:1313 118:303 119:236 120:1340 121:424 122:1713 123:381 124:329 125:1591 126:5 128:378 129:61 130:121 131:190 132:72 133:302 134:139 135:22 136:78 137:171 138:330 139:127 140:324 141:150 142:83 143:162 144:117 145:148 146:331 147:218 148:351 149:192 150:211 151:533 152:449 153:38 154:874 155:203 156:474 157:273 158:128 159:383 160:622 161:147 162:274 163:329 164:163 165:228 166:42 167:170 168:581 169:75 170:463 171:195 172:238 173:990 174:124 175:556 176:734 177:492 178:688 179:188 180:451 181:156 182:1637 183:1134 184:138 185:2309 186:214 187:543 188:603 189:304 190:473 191:99 192:1743 193:1114 194:898 195:783 196:315 197:376 198:728 199:466 200:788 201:533 202:2343 203:1971 204:267 205:261 206:316 207:323 208:242 209:314 210:1380 211:1152 212:767 213:532 216:355 217:555 218:812 219:66 220:563 221:428 222:132 223:1255 End of report