IPv4 R&E Routing Table Report 23:05 GMT Sun 09 Nov, 2025 IPv4 BGP Table (Global) as seen at Singapore. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/Singapore/ Analysis Summary ---------------- BGP routing table entries examined: 1008856 Prefixes after maximum aggregation (per Origin AS): 391394 Deaggregation factor: 2.58 Unique aggregates announced (without unneeded subnets): 500779 Number of IPv4 prefixes with a valid ROA: 584779 Number of IPv4 prefixes with an invalid ROA: 643 Number of IPv4 prefixes with no ROA: 423434 Total ASes present in the Internet Routing Table: 77417 Prefixes per ASN: 13.03 Origin-only ASes present in the Internet Routing Table: 66318 Origin ASes announcing only one prefix: 27097 Transit ASes present in the Internet Routing Table: 11099 Transit-only ASes present in the Internet Routing Table: 553 Paths with bogon ASNs present in the IPv4 Routing Table: 26 Average AS path length visible in the Internet Routing Table: 4.7 Max AS path length visible: 72 Max AS path prepend of ASN ( 37447) 66 Prefixes from unregistered ASNs in the Routing Table: 962 Number of instances of unregistered ASNs: 991 Number of 32-bit ASNs allocated by the RIRs: 47950 Number of 32-bit ASNs visible in the Routing Table: 39230 Prefixes from 32-bit ASNs in the Routing Table: 215211 Number of bogon 32-bit ASNs visible in the Routing Table: 72 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 411 Number of addresses announced to Internet: 3102402816 Equivalent to 184 /8s, 234 /16s and 233 /24s Percentage of available address space announced: 83.8 Percentage of allocated address space announced: 83.8 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: 330661 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 271041 Total APNIC prefixes after maximum aggregation: 80130 APNIC Deaggregation factor: 3.38 Prefixes being announced from the APNIC address blocks: 261101 Unique aggregates announced from the APNIC address blocks: 106204 APNIC Region origin ASes present in the Internet Routing Table: 14815 APNIC Prefixes per ASN: 17.62 APNIC Region origin ASes announcing only one prefix: 4500 APNIC Region transit ASes present in the Internet Routing Table: 2003 Average APNIC Region AS path length visible: 4.7 Max APNIC Region AS path length visible: 38 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10395 Number of APNIC addresses announced to Internet: 748514304 Equivalent to 44 /8s, 157 /16s and 108 /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: 296089 Total ARIN prefixes after maximum aggregation: 133536 ARIN Deaggregation factor: 2.22 Prefixes being announced from the ARIN address blocks: 296250 Unique aggregates announced from the ARIN address blocks: 145175 ARIN Region origin ASes present in the Internet Routing Table: 19354 ARIN Prefixes per ASN: 15.31 ARIN Region origin ASes announcing only one prefix: 7115 ARIN Region transit ASes present in the Internet Routing Table: 1924 Average ARIN Region AS path length visible: 4.3 Max ARIN Region AS path length visible: 28 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5404 Number of ARIN addresses announced to Internet: 1344816896 Equivalent to 80 /8s, 40 /16s and 71 /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: 280676 Total RIPE prefixes after maximum aggregation: 139404 RIPE Deaggregation factor: 2.01 Prefixes being announced from the RIPE address blocks: 281166 Unique aggregates announced from the RIPE address blocks: 182261 RIPE Region origin ASes present in the Internet Routing Table: 29087 RIPE Prefixes per ASN: 9.67 RIPE Region origin ASes announcing only one prefix: 12099 RIPE Region transit ASes present in the Internet Routing Table: 4047 Average RIPE Region AS path length visible: 4.9 Max RIPE Region AS path length visible: 31 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12794 Number of RIPE addresses announced to Internet: 735214336 Equivalent to 43 /8s, 210 /16s and 123 /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: 124919 Total LACNIC prefixes after maximum aggregation: 30764 LACNIC Deaggregation factor: 4.06 Prefixes being announced from the LACNIC address blocks: 120975 Unique aggregates announced from the LACNIC address blocks: 49582 LACNIC Region origin ASes present in the Internet Routing Table: 11307 LACNIC Prefixes per ASN: 10.70 LACNIC Region origin ASes announcing only one prefix: 2665 LACNIC Region transit ASes present in the Internet Routing Table: 2556 Average LACNIC Region AS path length visible: 5.3 Max LACNIC Region AS path length visible: 38 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9292 Number of LACNIC addresses announced to Internet: 170713344 Equivalent to 10 /8s, 44 /16s and 225 /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: 35169 Total AfriNIC prefixes after maximum aggregation: 6901 AfriNIC Deaggregation factor: 5.10 Prefixes being announced from the AfriNIC address blocks: 48953 Unique aggregates announced from the AfriNIC address blocks: 17197 AfriNIC Region origin ASes present in the Internet Routing Table: 1982 AfriNIC Prefixes per ASN: 24.70 AfriNIC Region origin ASes announcing only one prefix: 718 AfriNIC Region transit ASes present in the Internet Routing Table: 379 Average AfriNIC Region AS path length visible: 5.3 Max AfriNIC Region AS path length visible: 72 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1345 Number of AfriNIC addresses announced to Internet: 102922752 Equivalent to 6 /8s, 34 /16s and 122 /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 13392 8730 117 CHINAMOBILE-CN China Mobile Communication 7545 6092 833 588 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4519 538 314 BBIL-AP BHARTI Airtel Ltd., IN 18403 4477 347 24 FPT-AS-AP FPT Telecom Company, VN 7552 3976 1332 28 VIETEL-AS-AP Viettel Group, VN 7713 3717 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3316 1869 99 VNPT-AS-VN VNPT Corp, VN 56046 3248 828 181 CMNET-JIANGSU-AP China Mobile communicati 24560 2938 864 505 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 140292 2485 272 1919 CHINATELECOM-JIANGSU-SUZHOU-5G-NETWORK CH Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 14296 37219 5378 AMAZON-02, US 11492 4781 317 802 CABLEONE, US 22773 4638 3092 401 ASN-CXA-ALL-CCI-22773-RDC, US 7155 3861 286 85 VIASAT-SP-BACKBONE, US 6327 3688 1320 82 SHAW, CA 396982 3291 4827 474 GOOGLE-CLOUD-PLATFORM, US 749 3216 54766 2467 DNIC-AS-00749, US 16625 2862 1221 2143 AKAMAI-AS, US 36352 2846 231 911 AS-COLOCROSSING, US 30036 2655 365 299 MEDIACOM-ENTERPRISE-BUSINESS, US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 12479 7282 1711 149 UNI2-AS, ES 39891 4833 298 66 ALJAWWALSTC-AS, SA 9009 4012 377 2279 M247, RO 20940 3866 3395 125 AKAMAI-ASN1, NL 12389 3143 2317 868 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2539 179 1830 CDNEXT, GB 34984 2416 363 575 TELLCOM-AS, TR 8452 1672 1852 14 TE-AS TE-AS, EG 13188 1607 100 27 TRIOLAN, UA 203020 1458 166 842 HOSTROYALE, IN Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 12506 3297 576 UNINET, MX 10620 3456 463 1099 Telmex Colombia S.A., CO 13999 2504 511 350 Mega Cable, S.A. de C.V., MX 11830 1990 369 64 Instituto Costarricense de Electricidad y 28573 1375 2433 261 Claro NXT Telecomunicacoes Ltda, BR 3816 1353 789 206 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1271 371 23 Telefonica del Peru S.A.A., PE 22884 1056 67 363 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1026 2486 56 TIM SA, BR 18881 911 1127 31 TELEFONICA BRASIL S.A, BR Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 24835 1788 594 28 RAYA-AS, EG 36992 1678 1507 396 ETISALAT-MISR, EG 29571 1270 100 71 ORANGE-COTE-IVOIRE, CI 24863 1265 389 20 LINKdotNET-AS, EG 36903 1250 554 97 MT-MPLS, MA 37069 1086 1112 11 MOBINIL, EG 36935 984 520 32 Vodafone-, EG 20011 580 154 212 NTT-DATA-Inc, ZA 15399 551 57 56 WANANCHI-, KE 36914 532 82 3 KENET-AS, KE Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 14296 37219 5378 AMAZON-02, US 9808 13392 8730 117 CHINAMOBILE-CN China Mobile Communication 8151 12506 3297 576 UNINET, MX 12479 7282 1711 149 UNI2-AS, ES 7545 6092 833 588 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4833 298 66 ALJAWWALSTC-AS, SA 11492 4781 317 802 CABLEONE, US 22773 4638 3092 401 ASN-CXA-ALL-CCI-22773-RDC, US 9498 4519 538 314 BBIL-AP BHARTI Airtel Ltd., IN 18403 4477 347 24 FPT-AS-AP FPT Telecom Company, VN Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 9808 13392 13275 CHINAMOBILE-CN China Mobile Communications Grou 8151 12506 11930 UNINET, MX 12479 7282 7133 UNI2-AS, ES 7545 6092 5504 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4833 4767 ALJAWWALSTC-AS, SA 18403 4477 4453 FPT-AS-AP FPT Telecom Company, VN 22773 4638 4237 ASN-CXA-ALL-CCI-22773-RDC, US 9498 4519 4205 BBIL-AP BHARTI Airtel Ltd., IN 11492 4781 3979 CABLEONE, US 7552 3976 3948 VIETEL-AS-AP Viettel Group, VN Complete listing at https://bgp.nsrc.org/REN/Singapore/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 53775 UNALLOCATED 8.20.88.0/24 3737 AS-PTD, US 393266 UNALLOCATED 8.23.52.0/24 46887 CROWNCASTLE-AS46887, US 396894 UNALLOCATED 8.28.201.0/24 3356 LEVEL3, US 394936 UNALLOCATED 8.33.224.0/24 22442 HOU-PHONOSCOPE, US 54338 UNALLOCATED 8.33.241.0/24 6461 ZAYO-6461, US 395195 UNALLOCATED 8.38.115.0/24 3356 LEVEL3, US 1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3, US 54739 UNALLOCATED 8.44.198.0/23 13335 CLOUDFLARENET, US 13342 UNALLOCATED 12.17.5.0/24 174 COGENT-174, US 26345 UNALLOCATED 12.21.93.0/24 40264 TWC-40264-WI-MN-UPPERMI Complete listing at https://bgp.nsrc.org/REN/Singapore/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 23.135.216.0/24 Origin: 400565 RESERVED, ZZ 23.135.216.0/24 Transit: 3356 LEVEL3, US 23.140.216.0/24 Origin: 27176 DATAWAGON, US 23.140.216.0/24 Transit: 20278 NEXEON, US 23.141.0.0/24 Origin: 395350 RESERVED, ZZ 23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS, US 23.142.24.0/24 Origin: 62164 HEYMMAN-2, CA 23.142.24.0/24 Transit: 64236 UNREAL-SERVERS, US 23.147.240.0/24 Origin: 32302 RESERVED, ZZ 23.147.240.0/24 Transit: 32787 PROLEXIC-TECHNOLOGIES-DDOS-MITIGATION-NE Complete listing at https://bgp.nsrc.org/REN/Singapore/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 /8:18 /9:14 /10:41 /11:94 /12:298 /13:578 /14:1193 /15:2089 /16:13636 /17:8139 /18:13399 /19:24579 /20:44268 /21:51806 /22:112347 /23:104635 /24:631722 /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 8151 6715 12506 UNINET, MX 12479 6226 7282 UNI2-AS, ES 11492 3594 4781 CABLEONE, US 39891 3521 4833 ALJAWWALSTC-AS, SA 6327 3476 3688 SHAW, CA 22773 2982 4638 ASN-CXA-ALL-CCI-22773-RDC, US 7155 2820 3861 VIASAT-SP-BACKBONE, US 16509 2450 14296 AMAZON-02, US 30036 2312 2655 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2211 3456 Telmex Colombia S.A., CO Complete listing at https://bgp.nsrc.org/REN/Singapore/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:2438 2:1510 3:970 4:10 5:4931 6:189 7:6 8:1507 9:6 11:172 12:1229 13:561 14:2649 15:406 16:303 17:385 18:909 20:583 21:4 22:188 23:8026 24:2530 25:2 27:2786 29:19 31:3364 32:31 33:1 34:84 35:275 36:4513 37:4579 38:9358 39:1174 40:436 41:4357 42:1990 43:2833 44:400 45:19220 46:5175 47:365 49:2159 50:2051 51:595 52:1624 54:357 55:1100 56:11 57:288 58:2316 59:1321 60:1188 61:3014 62:3102 63:1749 64:5874 65:2128 66:5875 67:3236 68:1489 69:4105 70:1039 71:625 72:2982 74:2878 75:1511 76:600 77:2773 78:1904 79:1791 80:2275 81:2124 82:3574 83:1469 84:1999 85:3573 86:1107 87:2129 88:1327 89:4502 90:831 91:8396 92:2811 93:2979 94:4137 95:4523 96:1462 97:312 98:952 99:768 100:68 101:1486 102:4205 103:32741 104:5447 105:766 106:912 107:2796 108:1195 109:4196 110:2254 111:3858 112:2758 113:1899 114:2088 115:2248 116:2125 117:3096 118:3064 119:2043 120:2336 121:1497 122:2852 123:2267 124:1644 125:2925 126:125 128:1572 129:957 130:1483 131:2213 132:771 133:461 134:1627 135:365 136:1489 137:1135 138:2830 139:1594 140:1691 141:1567 142:2223 143:2109 144:1333 145:629 146:2180 147:2112 148:2773 149:2827 150:1295 151:2636 152:2262 153:589 154:8055 155:2222 156:3236 157:2109 158:1405 159:2633 160:3658 161:2001 162:3988 163:2323 164:1947 165:2549 166:1321 167:2113 168:3809 169:779 170:5449 171:1091 172:4498 173:3428 174:905 175:1352 176:3758 177:4671 178:4281 179:2278 180:2893 181:4317 182:3801 183:2595 184:2067 185:21652 186:5377 187:4705 188:4384 189:4431 190:9700 191:1525 192:11415 193:9496 194:7825 195:5583 196:3267 197:3222 198:6055 199:6091 200:8041 201:6368 202:10449 203:10547 204:4616 205:3643 206:4354 207:3710 208:4270 209:5317 210:4691 211:2647 212:4889 213:3995 214:1037 215:54 216:7129 217:3353 218:1572 219:402 220:2200 221:1266 222:762 223:3127 End of report