IPv4 R&E Routing Table Report 23:05 GMT Mon 16 Jun, 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: 982792 Prefixes after maximum aggregation (per Origin AS): 380638 Deaggregation factor: 2.58 Unique aggregates announced (without unneeded subnets): 482301 Number of IPv4 prefixes with a valid ROA: 548021 Number of IPv4 prefixes with an invalid ROA: 953 Number of IPv4 prefixes with no ROA: 433818 Total ASes present in the Internet Routing Table: 76816 Prefixes per ASN: 12.79 Origin-only ASes present in the Internet Routing Table: 65840 Origin ASes announcing only one prefix: 26878 Transit ASes present in the Internet Routing Table: 10976 Transit-only ASes present in the Internet Routing Table: 547 Paths with bogon ASNs present in the IPv4 Routing Table: 30 Average AS path length visible in the Internet Routing Table: 4.7 Max AS path length visible: 73 Max AS path prepend of ASN ( 37447) 66 Prefixes from unregistered ASNs in the Routing Table: 1160 Number of instances of unregistered ASNs: 1192 Number of 32-bit ASNs allocated by the RIRs: 46662 Number of 32-bit ASNs visible in the Routing Table: 38347 Prefixes from 32-bit ASNs in the Routing Table: 204238 Number of bogon 32-bit ASNs visible in the Routing Table: 88 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 439 Number of addresses announced to Internet: 3106359552 Equivalent to 185 /8s, 39 /16s and 73 /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: 321394 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 258920 Total APNIC prefixes after maximum aggregation: 77260 APNIC Deaggregation factor: 3.35 Prefixes being announced from the APNIC address blocks: 250354 Unique aggregates announced from the APNIC address blocks: 104331 APNIC Region origin ASes present in the Internet Routing Table: 14592 APNIC Prefixes per ASN: 17.16 APNIC Region origin ASes announcing only one prefix: 4424 APNIC Region transit ASes present in the Internet Routing Table: 1969 Average APNIC Region AS path length visible: 4.6 Max APNIC Region AS path length visible: 39 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10136 Number of APNIC addresses announced to Internet: 748771328 Equivalent to 44 /8s, 161 /16s and 88 /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: 288670 Total ARIN prefixes after maximum aggregation: 131571 ARIN Deaggregation factor: 2.19 Prefixes being announced from the ARIN address blocks: 290329 Unique aggregates announced from the ARIN address blocks: 139280 ARIN Region origin ASes present in the Internet Routing Table: 19202 ARIN Prefixes per ASN: 15.12 ARIN Region origin ASes announcing only one prefix: 7032 ARIN Region transit ASes present in the Internet Routing Table: 1926 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: 5225 Number of ARIN addresses announced to Internet: 1350120192 Equivalent to 80 /8s, 121 /16s and 51 /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: 274699 Total RIPE prefixes after maximum aggregation: 134739 RIPE Deaggregation factor: 2.04 Prefixes being announced from the RIPE address blocks: 273356 Unique aggregates announced from the RIPE address blocks: 175764 RIPE Region origin ASes present in the Internet Routing Table: 28932 RIPE Prefixes per ASN: 9.45 RIPE Region origin ASes announcing only one prefix: 12080 RIPE Region transit ASes present in the Internet Routing Table: 3998 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: 12497 Number of RIPE addresses announced to Internet: 731109120 Equivalent to 43 /8s, 147 /16s and 215 /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: 123741 Total LACNIC prefixes after maximum aggregation: 29576 LACNIC Deaggregation factor: 4.18 Prefixes being announced from the LACNIC address blocks: 120277 Unique aggregates announced from the LACNIC address blocks: 48951 LACNIC Region origin ASes present in the Internet Routing Table: 11252 LACNIC Prefixes per ASN: 10.69 LACNIC Region origin ASes announcing only one prefix: 2648 LACNIC Region transit ASes present in the Internet Routing Table: 2511 Average LACNIC Region AS path length visible: 5.3 Max LACNIC Region AS path length visible: 71 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9205 Number of LACNIC addresses announced to Internet: 171226368 Equivalent to 10 /8s, 52 /16s and 181 /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: 35602 Total AfriNIC prefixes after maximum aggregation: 6730 AfriNIC Deaggregation factor: 5.29 Prefixes being announced from the AfriNIC address blocks: 48037 Unique aggregates announced from the AfriNIC address blocks: 13581 AfriNIC Region origin ASes present in the Internet Routing Table: 1921 AfriNIC Prefixes per ASN: 25.01 AfriNIC Region origin ASes announcing only one prefix: 694 AfriNIC Region transit ASes present in the Internet Routing Table: 371 Average AfriNIC Region AS path length visible: 5.4 Max AfriNIC Region AS path length visible: 70 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1284 Number of AfriNIC addresses announced to Internet: 104927744 Equivalent to 6 /8s, 65 /16s and 18 /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 11080 8758 100 CHINAMOBILE-CN China Mobile Communication 7545 6172 847 649 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4420 534 309 BBIL-AP BHARTI Airtel Ltd., IN 18403 4402 347 26 FPT-AS-AP FPT Telecom Company, VN 7552 3922 1332 26 VIETEL-AS-AP Viettel Group, VN 7713 3711 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3278 1869 103 VNPT-AS-VN VNPT Corp, VN 24560 2890 856 533 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 4755 2182 434 193 TATACOMM-AS TATA Communications formerly 45090 2173 1439 86 TENCENT-NET-AP Shenzhen Tencent Computer 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 13682 40937 5241 AMAZON-02, US 11492 4762 316 595 CABLEONE, US 7155 3862 286 85 VIASAT-SP-BACKBONE, US 6327 3635 1320 81 SHAW, CA 174 3577 8744 875 COGENT-174, US 22773 3351 3033 170 ASN-CXA-ALL-CCI-22773-RDC, US 749 3230 54783 2481 DNIC-AS-00749, US 396982 3188 3854 427 GOOGLE-CLOUD-PLATFORM, US 16625 2998 1250 2217 AKAMAI-AS, US 36352 2818 230 850 AS-COLOCROSSING, 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 7699 1713 148 UNI2-AS, ES 39891 4798 293 63 ALJAWWALSTC-AS, SA 20940 3939 3395 123 AKAMAI-ASN1, NL 9009 3885 354 2085 M247, RO 12389 3105 2304 885 ROSTELECOM-AS PJSC Rostelecom. Technical 34984 2401 361 578 TELLCOM-AS, TR 212238 2283 167 1667 CDNEXT, GB 13188 1606 100 34 TRIOLAN, UA 8452 1573 1852 14 TE-AS TE-AS, EG 8551 1418 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 12197 3254 576 UNINET, MX 10620 3502 481 1019 Telmex Colombia S.A., CO 13999 2490 541 357 Mega Cable, S.A. de C.V., MX 11830 1990 369 64 Instituto Costarricense de Electricidad y 28573 1371 2436 266 Claro NXT Telecomunicacoes Ltda, BR 3816 1340 787 207 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 11664 1204 278 33 Techtel LMDS Comunicaciones Interactivas 6147 1200 371 22 Telefonica del Peru S.A.A., PE 22884 1063 68 370 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1048 2503 52 TIM SA, 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 1820 644 27 RAYA-AS, EG 24863 1633 389 16 LINKdotNET-AS, EG 29571 1606 102 33 ORANGE-COTE-IVOIRE, CI 36992 1431 1519 280 ETISALAT-MISR, EG 36903 1243 551 113 MT-MPLS, MA 37069 1107 1100 18 MOBINIL, EG 36935 1050 520 44 Vodafone-, EG 20011 980 185 285 INTERNET-SOLUTIONS, ZA 36914 564 82 3 KENET-AS, KE 15399 543 57 57 WANANCHI-, 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 13682 40937 5241 AMAZON-02, US 8151 12197 3254 576 UNINET, MX 9808 11080 8758 100 CHINAMOBILE-CN China Mobile Communication 12479 7699 1713 148 UNI2-AS, ES 7545 6172 847 649 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 293 63 ALJAWWALSTC-AS, SA 11492 4762 316 595 CABLEONE, US 9498 4420 534 309 BBIL-AP BHARTI Airtel Ltd., IN 18403 4402 347 26 FPT-AS-AP FPT Telecom Company, VN 20940 3939 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 12197 11621 UNINET, MX 9808 11080 10980 CHINAMOBILE-CN China Mobile Communications Grou 12479 7699 7551 UNI2-AS, ES 7545 6172 5523 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 4735 ALJAWWALSTC-AS, SA 18403 4402 4376 FPT-AS-AP FPT Telecom Company, VN 11492 4762 4167 CABLEONE, US 9498 4420 4111 BBIL-AP BHARTI Airtel Ltd., IN 7552 3922 3896 VIETEL-AS-AP Viettel Group, VN 20940 3939 3816 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 394804 UNALLOCATED 8.33.225.0/24 3356 LEVEL3, US 54338 UNALLOCATED 8.33.241.0/24 3356 LEVEL3, US 46639 UNALLOCATED 8.38.73.0/24 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 23.140.68.0/24 Origin: 401753 BIXCE-AS, VG 23.140.68.0/24 Transit: 35661 VIRTUASYS-EU Lift weight. Push bytes. Ne 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 23.147.240.0/24 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 /12:300 /13:581 /14:1200 /15:2131 /16:13813 /17:8178 /18:13435 /19:24408 /20:43821 /21:51445 /22:111668 /23:102155 /24:609494 /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 6619 7699 UNI2-AS, ES 8151 6414 12197 UNINET, MX 11492 3559 4762 CABLEONE, US 39891 3489 4798 ALJAWWALSTC-AS, SA 6327 3431 3635 SHAW, CA 7155 2821 3862 VIASAT-SP-BACKBONE, US 22773 2499 3351 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2360 13682 AMAZON-02, US 10620 2189 3502 Telmex Colombia S.A., CO 30036 2025 2358 MEDIACOM-ENTERPRISE-BUSINESS, US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:2383 2:1491 3:822 4:10 5:4760 6:161 7:6 8:1572 9:1 11:172 12:1347 13:454 14:2521 15:360 16:285 17:377 18:922 20:545 21:4 22:188 23:7572 24:2813 25:2 27:2766 29:19 31:3299 32:36 33:1 34:83 35:252 36:3100 37:4571 38:9385 39:906 40:166 41:4230 42:1953 43:2644 44:381 45:18629 46:5104 47:317 49:1942 50:1853 51:592 52:1571 54:329 55:1091 56:11 57:267 58:2210 59:1287 60:1171 61:2835 62:2932 63:1793 64:5438 65:2170 66:4616 67:3056 68:1123 69:3838 70:1068 71:623 72:2832 74:2783 75:1504 76:616 77:2719 78:1878 79:1717 80:2214 81:2064 82:3153 83:1445 84:1864 85:3454 86:1087 87:2135 88:1295 89:4408 90:768 91:8405 92:2727 93:2913 94:4002 95:4341 96:1421 97:311 98:981 99:693 100:73 101:1423 102:3849 103:32733 104:5137 105:762 106:1034 107:2665 108:1238 109:4098 110:2236 111:3275 112:2122 113:1812 114:1992 115:2116 116:2080 117:2533 118:2879 119:1924 120:2002 121:1372 122:2775 123:2179 124:1631 125:2906 126:91 128:1572 129:947 130:1291 131:2030 132:773 133:449 134:1526 135:346 136:1349 137:1111 138:2844 139:1591 140:1606 141:1506 142:1897 143:1855 144:1186 145:543 146:2175 147:2103 148:2706 149:2900 150:1265 151:1977 152:2078 153:511 154:7322 155:1747 156:2976 157:1912 158:1328 159:2486 160:3605 161:1850 162:3843 163:2211 164:1857 165:1982 166:1492 167:1960 168:4012 169:791 170:5130 171:1020 172:4456 173:3228 174:918 175:1305 176:3709 177:4703 178:3720 179:2316 180:2750 181:4066 182:3446 183:2173 184:2063 185:21548 186:5180 187:4533 188:4265 189:4281 190:9593 191:1491 192:11274 193:9477 194:7805 195:5545 196:3295 197:3673 198:6070 199:8531 200:8083 201:6373 202:10244 203:10645 204:4547 205:3618 206:4421 207:3492 208:4250 209:5111 210:4560 211:2536 212:4569 213:3726 214:1030 215:48 216:6742 217:3160 218:1353 219:393 220:2085 221:1137 222:724 223:2479 End of report