IPv4 R&E Routing Table Report 23:05 GMT Fri 18 Apr, 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: 975300 Prefixes after maximum aggregation (per Origin AS): 375695 Deaggregation factor: 2.60 Unique aggregates announced (without unneeded subnets): 478147 Number of IPv4 prefixes with a valid ROA: 537872 Number of IPv4 prefixes with an invalid ROA: 692 Number of IPv4 prefixes with no ROA: 436736 Total ASes present in the Internet Routing Table: 76682 Prefixes per ASN: 12.72 Origin-only ASes present in the Internet Routing Table: 65795 Origin ASes announcing only one prefix: 26896 Transit ASes present in the Internet Routing Table: 10887 Transit-only ASes present in the Internet Routing Table: 533 Paths with bogon ASNs present in the IPv4 Routing Table: 22 Average AS path length visible in the Internet Routing Table: 4.8 Max AS path length visible: 70 Max AS path prepend of ASN ( 37447) 66 Prefixes from unregistered ASNs in the Routing Table: 1057 Number of instances of unregistered ASNs: 1058 Number of 32-bit ASNs allocated by the RIRs: 46240 Number of 32-bit ASNs visible in the Routing Table: 38098 Prefixes from 32-bit ASNs in the Routing Table: 200530 Number of bogon 32-bit ASNs visible in the Routing Table: 14 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 437 Number of addresses announced to Internet: 3106434304 Equivalent to 185 /8s, 40 /16s and 109 /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: 319555 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 255386 Total APNIC prefixes after maximum aggregation: 76539 APNIC Deaggregation factor: 3.34 Prefixes being announced from the APNIC address blocks: 247101 Unique aggregates announced from the APNIC address blocks: 102850 APNIC Region origin ASes present in the Internet Routing Table: 14558 APNIC Prefixes per ASN: 16.97 APNIC Region origin ASes announcing only one prefix: 4441 APNIC Region transit ASes present in the Internet Routing Table: 1970 Average APNIC Region AS path length visible: 4.7 Max APNIC Region AS path length visible: 37 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10086 Number of APNIC addresses announced to Internet: 748309504 Equivalent to 44 /8s, 154 /16s and 76 /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: 287384 Total ARIN prefixes after maximum aggregation: 129038 ARIN Deaggregation factor: 2.23 Prefixes being announced from the ARIN address blocks: 288364 Unique aggregates announced from the ARIN address blocks: 137892 ARIN Region origin ASes present in the Internet Routing Table: 19213 ARIN Prefixes per ASN: 15.01 ARIN Region origin ASes announcing only one prefix: 7043 ARIN Region transit ASes present in the Internet Routing Table: 1905 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: 5181 Number of ARIN addresses announced to Internet: 1349336832 Equivalent to 80 /8s, 109 /16s and 63 /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: 272815 Total RIPE prefixes after maximum aggregation: 133368 RIPE Deaggregation factor: 2.05 Prefixes being announced from the RIPE address blocks: 270797 Unique aggregates announced from the RIPE address blocks: 173868 RIPE Region origin ASes present in the Internet Routing Table: 28880 RIPE Prefixes per ASN: 9.38 RIPE Region origin ASes announcing only one prefix: 12051 RIPE Region transit ASes present in the Internet Routing Table: 3967 Average RIPE Region AS path length visible: 4.9 Max RIPE Region AS path length visible: 47 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12385 Number of RIPE addresses announced to Internet: 731858432 Equivalent to 43 /8s, 159 /16s and 70 /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: 123315 Total LACNIC prefixes after maximum aggregation: 29365 LACNIC Deaggregation factor: 4.20 Prefixes being announced from the LACNIC address blocks: 119923 Unique aggregates announced from the LACNIC address blocks: 48862 LACNIC Region origin ASes present in the Internet Routing Table: 11220 LACNIC Prefixes per ASN: 10.69 LACNIC Region origin ASes announcing only one prefix: 2666 LACNIC Region transit ASes present in the Internet Routing Table: 2473 Average LACNIC Region AS path length visible: 5.2 Max LACNIC Region AS path length visible: 35 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9169 Number of LACNIC addresses announced to Internet: 171746560 Equivalent to 10 /8s, 60 /16s and 165 /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: 35343 Total AfriNIC prefixes after maximum aggregation: 6750 AfriNIC Deaggregation factor: 5.24 Prefixes being announced from the AfriNIC address blocks: 48678 Unique aggregates announced from the AfriNIC address blocks: 14300 AfriNIC Region origin ASes present in the Internet Routing Table: 1912 AfriNIC Prefixes per ASN: 25.46 AfriNIC Region origin ASes announcing only one prefix: 695 AfriNIC Region transit ASes present in the Internet Routing Table: 373 Average AfriNIC Region AS path length visible: 5.3 Max AfriNIC Region AS path length visible: 70 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1277 Number of AfriNIC addresses announced to Internet: 104963328 Equivalent to 6 /8s, 65 /16s and 157 /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 10346 8753 89 CHINAMOBILE-CN China Mobile Communication 7545 6214 843 656 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4268 530 276 BBIL-AP BHARTI Airtel Ltd., IN 18403 4261 347 25 FPT-AS-AP FPT Telecom Company, VN 7552 3924 1332 26 VIETEL-AS-AP Viettel Group, VN 7713 3670 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3266 1869 102 VNPT-AS-VN VNPT Corp, VN 24560 2856 850 537 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 45090 2206 1439 86 TENCENT-NET-AP Shenzhen Tencent Computer 4766 2176 11524 637 KIXS-AS-KR Korea Telecom, KR 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 13205 39707 4102 AMAZON-02, US 11492 4694 311 587 CABLEONE, US 7155 3829 286 85 VIASAT-SP-BACKBONE, US 6327 3622 1320 81 SHAW, CA 174 3538 8761 926 COGENT-174, US 22773 3399 3036 183 ASN-CXA-ALL-CCI-22773-RDC, US 749 3254 54879 2505 DNIC-AS-00749, US 16625 3000 1257 2216 AKAMAI-AS, US 396982 2957 3650 468 GOOGLE-CLOUD-PLATFORM, US 36352 2691 221 830 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 7703 1714 145 UNI2-AS, ES 39891 4797 293 62 ALJAWWALSTC-AS, SA 20940 3930 3395 125 AKAMAI-ASN1, NL 9009 3770 325 1959 M247, RO 12389 3068 2303 885 ROSTELECOM-AS PJSC Rostelecom. Technical 34984 2362 360 584 TELLCOM-AS, TR 212238 2098 148 1543 CDNEXT, GB 13188 1606 100 34 TRIOLAN, UA 8452 1596 1852 14 TE-AS TE-AS, EG 62240 1444 95 746 CLOUVIDER Clouvider - Global ASN, GB 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 11957 3243 591 UNINET, MX 10620 3522 486 992 Telmex Colombia S.A., CO 13999 2511 539 364 Mega Cable, S.A. de C.V., MX 11830 1993 369 64 Instituto Costarricense de Electricidad y 28573 1356 2438 262 Claro NXT Telecomunicacoes Ltda, BR 3816 1333 784 206 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1191 371 22 Telefonica del Peru S.A.A., PE 11664 1058 278 33 Techtel LMDS Comunicaciones Interactivas 22884 1052 67 378 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 6503 1043 374 163 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 1743 607 31 RAYA-AS, EG 24863 1647 389 16 LINKdotNET-AS, EG 29571 1588 102 22 ORANGE-COTE-IVOIRE, CI 36992 1433 1518 283 ETISALAT-MISR, EG 36903 1249 554 96 MT-MPLS, MA 36935 1020 521 42 Vodafone-, EG 20011 981 185 285 INTERNET-SOLUTIONS, ZA 37069 932 1099 15 MOBINIL, EG 6713 561 1861 35 IAM-AS, MA 36914 530 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 13205 39707 4102 AMAZON-02, US 8151 11957 3243 591 UNINET, MX 9808 10346 8753 89 CHINAMOBILE-CN China Mobile Communication 12479 7703 1714 145 UNI2-AS, ES 7545 6214 843 656 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 293 62 ALJAWWALSTC-AS, SA 11492 4694 311 587 CABLEONE, US 9498 4268 530 276 BBIL-AP BHARTI Airtel Ltd., IN 18403 4261 347 25 FPT-AS-AP FPT Telecom Company, VN 20940 3930 3395 125 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 11957 11366 UNINET, MX 9808 10346 10257 CHINAMOBILE-CN China Mobile Communications Grou 12479 7703 7558 UNI2-AS, ES 7545 6214 5558 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 4735 ALJAWWALSTC-AS, SA 18403 4261 4236 FPT-AS-AP FPT Telecom Company, VN 11492 4694 4107 CABLEONE, US 9498 4268 3992 BBIL-AP BHARTI Airtel Ltd., IN 7552 3924 3898 VIETEL-AS-AP Viettel Group, VN 20940 3930 3805 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 12169 UNALLOCATED 8.15.207.0/24 32787 PROLEXIC-TECHNOLOGIES-D 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 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 23.152.48.0/24 Origin: 46167 RESERVED, ZZ 23.152.48.0/24 Transit: 7018 ATT-INTERNET4, US 23.155.208.0/24 Origin: 396169 AS-GHCIL-01, US 23.155.208.0/24 Transit: 35985 ONERINGNET-ATL-1, US 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 /9:16 /10:41 /11:93 /12:300 /13:581 /14:1215 /15:2136 /16:13883 /17:8231 /18:13659 /19:24468 /20:43586 /21:51489 /22:111608 /23:101048 /24:602930 /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 6624 7703 UNI2-AS, ES 8151 6163 11957 UNINET, MX 11492 3531 4694 CABLEONE, US 39891 3489 4797 ALJAWWALSTC-AS, SA 6327 3417 3622 SHAW, CA 7155 2787 3829 VIASAT-SP-BACKBONE, US 22773 2535 3399 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2354 13205 AMAZON-02, US 30036 2216 2556 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2188 3522 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) ---------------------------------------------- 1:2345 2:1512 3:617 4:10 5:4620 6:163 7:6 8:1557 9:1 11:172 12:1371 13:354 14:2514 15:352 16:283 17:367 18:922 20:511 21:4 22:188 23:7410 24:2749 25:2 27:2741 29:19 31:3210 32:36 34:83 35:203 36:2396 37:4644 38:8910 39:905 40:166 41:4222 42:1910 43:2551 44:378 45:18510 46:4995 47:290 49:1920 50:1888 51:590 52:1554 54:299 55:1090 56:11 57:253 58:2200 59:1252 60:1171 61:2813 62:2906 63:1821 64:5473 65:2186 66:4589 67:3054 68:1113 69:3817 70:1063 71:613 72:2831 74:2778 75:1589 76:613 77:2741 78:1873 79:1749 80:2194 81:2038 82:3180 83:1427 84:1842 85:3409 86:1050 87:2142 88:1278 89:4312 90:784 91:8312 92:2783 93:2888 94:4064 95:4340 96:1388 97:313 98:997 99:644 100:72 101:1385 102:3754 103:32174 104:4813 105:756 106:984 107:2616 108:1202 109:4076 110:2234 111:3352 112:2047 113:1796 114:1967 115:2165 116:2027 117:2737 118:2887 119:1942 120:1874 121:1363 122:2746 123:2160 124:1608 125:2861 126:91 128:1549 129:952 130:1268 131:1911 132:779 133:451 134:1525 135:330 136:1301 137:1106 138:2881 139:1605 140:1574 141:1484 142:1902 143:1640 144:1079 145:512 146:2147 147:2111 148:2662 149:2910 150:1244 151:1758 152:2098 153:502 154:8032 155:1613 156:3182 157:1891 158:1287 159:2437 160:3565 161:1896 162:3738 163:2057 164:1694 165:2198 166:1446 167:1879 168:4044 169:786 170:4892 171:1003 172:4475 173:3229 174:903 175:1296 176:3677 177:4654 178:3740 179:2276 180:2582 181:4060 182:3365 183:2049 184:2077 185:21505 186:5061 187:4408 188:4199 189:4173 190:9620 191:1477 192:11212 193:9420 194:7761 195:5507 196:3291 197:3698 198:6050 199:8445 200:8070 201:6273 202:10335 203:10517 204:4516 205:3634 206:4576 207:3439 208:4186 209:5133 210:4511 211:2531 212:4517 213:3759 214:1034 215:48 216:6597 217:3109 218:1332 219:377 220:2086 221:1058 222:715 223:2323 End of report