IPv4 R&E Routing Table Report 23:05 GMT Thu 03 Jul, 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: 985214 Prefixes after maximum aggregation (per Origin AS): 381670 Deaggregation factor: 2.58 Unique aggregates announced (without unneeded subnets): 485559 Number of IPv4 prefixes with a valid ROA: 552638 Number of IPv4 prefixes with an invalid ROA: 759 Number of IPv4 prefixes with no ROA: 431817 Total ASes present in the Internet Routing Table: 76845 Prefixes per ASN: 12.82 Origin-only ASes present in the Internet Routing Table: 65851 Origin ASes announcing only one prefix: 26873 Transit ASes present in the Internet Routing Table: 10994 Transit-only ASes present in the Internet Routing Table: 541 Paths with bogon ASNs present in the IPv4 Routing Table: 33 Average AS path length visible in the Internet Routing Table: 4.7 Max AS path length visible: 83 Max AS path prepend of ASN ( 37447) 77 Prefixes from unregistered ASNs in the Routing Table: 1131 Number of instances of unregistered ASNs: 1170 Number of 32-bit ASNs allocated by the RIRs: 46744 Number of 32-bit ASNs visible in the Routing Table: 38444 Prefixes from 32-bit ASNs in the Routing Table: 204905 Number of bogon 32-bit ASNs visible in the Routing Table: 94 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 450 Number of addresses announced to Internet: 3105641728 Equivalent to 185 /8s, 28 /16s and 85 /24s Percentage of available address space announced: 83.9 Percentage of allocated address space announced: 83.9 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: 321444 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 260608 Total APNIC prefixes after maximum aggregation: 77363 APNIC Deaggregation factor: 3.37 Prefixes being announced from the APNIC address blocks: 251648 Unique aggregates announced from the APNIC address blocks: 104606 APNIC Region origin ASes present in the Internet Routing Table: 14641 APNIC Prefixes per ASN: 17.19 APNIC Region origin ASes announcing only one prefix: 4438 APNIC Region transit ASes present in the Internet Routing Table: 1966 Average APNIC Region AS path length visible: 4.5 Max APNIC Region AS path length visible: 36 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10196 Number of APNIC addresses announced to Internet: 748831232 Equivalent to 44 /8s, 162 /16s and 66 /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: 289189 Total ARIN prefixes after maximum aggregation: 131560 ARIN Deaggregation factor: 2.20 Prefixes being announced from the ARIN address blocks: 290451 Unique aggregates announced from the ARIN address blocks: 140522 ARIN Region origin ASes present in the Internet Routing Table: 19197 ARIN Prefixes per ASN: 15.13 ARIN Region origin ASes announcing only one prefix: 7035 ARIN Region transit ASes present in the Internet Routing Table: 1923 Average ARIN Region AS path length visible: 4.4 Max ARIN Region AS path length visible: 24 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5230 Number of ARIN addresses announced to Internet: 1349026048 Equivalent to 80 /8s, 104 /16s and 129 /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: 275414 Total RIPE prefixes after maximum aggregation: 135540 RIPE Deaggregation factor: 2.03 Prefixes being announced from the RIPE address blocks: 274366 Unique aggregates announced from the RIPE address blocks: 176929 RIPE Region origin ASes present in the Internet Routing Table: 28913 RIPE Prefixes per ASN: 9.49 RIPE Region origin ASes announcing only one prefix: 12039 RIPE Region transit ASes present in the Internet Routing Table: 3995 Average RIPE Region AS path length visible: 4.9 Max RIPE Region AS path length visible: 73 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12509 Number of RIPE addresses announced to Internet: 731265536 Equivalent to 43 /8s, 150 /16s and 58 /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: 123879 Total LACNIC prefixes after maximum aggregation: 29793 LACNIC Deaggregation factor: 4.16 Prefixes being announced from the LACNIC address blocks: 120307 Unique aggregates announced from the LACNIC address blocks: 49028 LACNIC Region origin ASes present in the Internet Routing Table: 11276 LACNIC Prefixes per ASN: 10.67 LACNIC Region origin ASes announcing only one prefix: 2673 LACNIC Region transit ASes present in the Internet Routing Table: 2525 Average LACNIC Region AS path length visible: 5.4 Max LACNIC Region AS path length visible: 71 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9227 Number of LACNIC addresses announced to Internet: 171169792 Equivalent to 10 /8s, 51 /16s and 216 /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: 34993 Total AfriNIC prefixes after maximum aggregation: 6672 AfriNIC Deaggregation factor: 5.24 Prefixes being announced from the AfriNIC address blocks: 47992 Unique aggregates announced from the AfriNIC address blocks: 14068 AfriNIC Region origin ASes present in the Internet Routing Table: 1919 AfriNIC Prefixes per ASN: 25.01 AfriNIC Region origin ASes announcing only one prefix: 688 AfriNIC Region transit ASes present in the Internet Routing Table: 377 Average AfriNIC Region AS path length visible: 5.3 Max AfriNIC Region AS path length visible: 83 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1282 Number of AfriNIC addresses announced to Internet: 105097728 Equivalent to 6 /8s, 67 /16s and 170 /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 11562 8759 114 CHINAMOBILE-CN China Mobile Communication 7545 6147 840 622 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4432 535 313 BBIL-AP BHARTI Airtel Ltd., IN 18403 4374 347 26 FPT-AS-AP FPT Telecom Company, VN 7552 3912 1332 27 VIETEL-AS-AP Viettel Group, VN 7713 3697 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3288 1869 103 VNPT-AS-VN VNPT Corp, VN 24560 2897 861 525 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 56046 2429 812 179 CMNET-JIANGSU-AP China Mobile communicati 4755 2182 434 193 TATACOMM-AS TATA Communications formerly 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 13559 40949 5225 AMAZON-02, US 11492 4781 317 604 CABLEONE, US 7155 3857 286 85 VIASAT-SP-BACKBONE, US 6327 3637 1320 82 SHAW, CA 174 3510 8766 857 COGENT-174, US 22773 3340 3032 167 ASN-CXA-ALL-CCI-22773-RDC, US 749 3226 54767 2477 DNIC-AS-00749, US 396982 3193 3854 430 GOOGLE-CLOUD-PLATFORM, US 16625 2962 1243 2206 AKAMAI-AS, US 4155 2844 216 1734 USDA-1, 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 7656 1713 148 UNI2-AS, ES 39891 4798 293 63 ALJAWWALSTC-AS, SA 20940 3937 3395 123 AKAMAI-ASN1, NL 9009 3773 350 2105 M247, RO 12389 3118 2305 882 ROSTELECOM-AS PJSC Rostelecom. Technical 34984 2403 361 583 TELLCOM-AS, TR 212238 2351 169 1718 CDNEXT, GB 13188 1606 100 34 TRIOLAN, UA 8452 1582 1852 14 TE-AS TE-AS, EG 8551 1431 366 39 BEZEQ-INTERNATIONAL-AS Bezeqint Internet 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 12224 3256 575 UNINET, MX 10620 3507 481 1018 Telmex Colombia S.A., CO 13999 2539 538 356 Mega Cable, S.A. de C.V., MX 11830 1987 369 64 Instituto Costarricense de Electricidad y 28573 1368 2435 268 Claro NXT Telecomunicacoes Ltda, BR 3816 1344 787 205 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1195 371 22 Telefonica del Peru S.A.A., PE 22884 1061 67 370 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 11664 1042 278 33 Techtel LMDS Comunicaciones Interactivas 6503 1022 373 162 Axtel, S.A.B. de C.V., MX 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 1784 604 28 RAYA-AS, EG 24863 1621 389 17 LINKdotNET-AS, EG 29571 1607 102 33 ORANGE-COTE-IVOIRE, CI 36992 1431 1519 280 ETISALAT-MISR, EG 36903 1249 554 96 MT-MPLS, MA 37069 1108 1100 18 MOBINIL, EG 36935 939 520 44 Vodafone-, EG 20011 568 154 212 INTERNET-SOLUTIONS, ZA 15399 534 56 53 WANANCHI-, KE 3741 519 661 316 IS, ZA 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 13559 40949 5225 AMAZON-02, US 8151 12224 3256 575 UNINET, MX 9808 11562 8759 114 CHINAMOBILE-CN China Mobile Communication 12479 7656 1713 148 UNI2-AS, ES 7545 6147 840 622 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 293 63 ALJAWWALSTC-AS, SA 11492 4781 317 604 CABLEONE, US 9498 4432 535 313 BBIL-AP BHARTI Airtel Ltd., IN 18403 4374 347 26 FPT-AS-AP FPT Telecom Company, VN 20940 3937 3395 123 AKAMAI-ASN1, NL Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 8151 12224 11649 UNINET, MX 9808 11562 11448 CHINAMOBILE-CN China Mobile Communications Grou 12479 7656 7508 UNI2-AS, ES 7545 6147 5525 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 4735 ALJAWWALSTC-AS, SA 18403 4374 4348 FPT-AS-AP FPT Telecom Company, VN 11492 4781 4177 CABLEONE, US 9498 4432 4119 BBIL-AP BHARTI Airtel Ltd., IN 7552 3912 3885 VIETEL-AS-AP Viettel Group, VN 20940 3937 3814 AKAMAI-ASN1, NL 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 22542 UNALLOCATED 8.7.205.0/24 3356 LEVEL3, US 33123 UNALLOCATED 8.10.69.0/24 174 COGENT-174, US 46639 UNALLOCATED 8.17.66.0/24 701 UUNET, US 53775 UNALLOCATED 8.20.88.0/24 7029 WINDSTREAM, 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 3356 LEVEL3, US 46639 UNALLOCATED 8.38.73.0/24 3356 LEVEL3, US 395195 UNALLOCATED 8.38.115.0/24 3356 LEVEL3, US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 14.192.20.0/22 Origin: 26658 HENGTONG-IDC-LLC, US 14.192.20.0/22 Transit: 3491 CONSOLE-CONNECT-ASN, 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 /8:16 /9:14 /10:41 /11:92 /12:298 /13:582 /14:1200 /15:2129 /16:13746 /17:8168 /18:13415 /19:24406 /20:43821 /21:51544 /22:111625 /23:102291 /24:611826 /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 12479 6579 7656 UNI2-AS, ES 8151 6436 12224 UNINET, MX 11492 3577 4781 CABLEONE, US 39891 3489 4798 ALJAWWALSTC-AS, SA 6327 3433 3637 SHAW, CA 7155 2816 3857 VIASAT-SP-BACKBONE, US 22773 2491 3340 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2349 13559 AMAZON-02, US 30036 2263 2604 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2194 3507 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) ---------------------------------------------- 1:2394 2:1501 3:817 4:10 5:4737 6:162 7:6 8:1573 9:1 11:172 12:1344 13:450 14:2544 15:363 16:285 17:382 18:892 20:555 21:4 22:188 23:7656 24:2676 25:2 27:2775 29:19 31:3315 32:35 33:1 34:83 35:255 36:3283 37:4563 38:9351 39:907 40:229 41:4276 42:1885 43:2699 44:372 45:18668 46:5112 47:325 49:1885 50:1886 51:592 52:1553 54:321 55:1103 56:11 57:269 58:2211 59:1272 60:1173 61:2827 62:2922 63:1792 64:5507 65:2174 66:4670 67:3076 68:1087 69:3851 70:1051 71:619 72:2851 74:2773 75:1504 76:607 77:2776 78:1887 79:1736 80:2197 81:2073 82:3166 83:1443 84:1868 85:3456 86:1083 87:2128 88:1309 89:4409 90:776 91:8387 92:2746 93:2937 94:4052 95:4376 96:1442 97:311 98:958 99:691 100:72 101:1424 102:3879 103:32871 104:5209 105:760 106:978 107:2640 108:1256 109:4133 110:2250 111:3238 112:2181 113:1845 114:1971 115:2184 116:2079 117:2550 118:2973 119:1922 120:2099 121:1318 122:2787 123:2211 124:1658 125:2895 126:91 128:1573 129:953 130:1275 131:2035 132:771 133:451 134:1562 135:349 136:1386 137:1116 138:2798 139:1585 140:1624 141:1510 142:1915 143:1944 144:1176 145:556 146:2167 147:2103 148:2699 149:2910 150:1280 151:2169 152:2083 153:524 154:7690 155:1773 156:3152 157:1939 158:1338 159:2502 160:3616 161:1853 162:3877 163:2215 164:1867 165:2036 166:1512 167:1998 168:3953 169:774 170:5117 171:1005 172:4430 173:3358 174:918 175:1322 176:3714 177:4725 178:3912 179:2310 180:2728 181:4090 182:3488 183:2218 184:2068 185:21595 186:5184 187:4568 188:4258 189:4303 190:9580 191:1445 192:11280 193:9469 194:7766 195:5560 196:3300 197:3096 198:6045 199:8559 200:8077 201:6376 202:10359 203:10628 204:4565 205:3611 206:4416 207:3502 208:4254 209:5080 210:4555 211:2551 212:4576 213:3801 214:1016 215:46 216:6751 217:3193 218:1360 219:396 220:2142 221:1151 222:714 223:2551 End of report