IPv4 R&E Routing Table Report 23:05 GMT Tue 29 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: 977026 Prefixes after maximum aggregation (per Origin AS): 376358 Deaggregation factor: 2.60 Unique aggregates announced (without unneeded subnets): 478489 Number of IPv4 prefixes with a valid ROA: 539802 Number of IPv4 prefixes with an invalid ROA: 718 Number of IPv4 prefixes with no ROA: 436506 Total ASes present in the Internet Routing Table: 76697 Prefixes per ASN: 12.74 Origin-only ASes present in the Internet Routing Table: 65779 Origin ASes announcing only one prefix: 26949 Transit ASes present in the Internet Routing Table: 10918 Transit-only ASes present in the Internet Routing Table: 534 Paths with bogon ASNs present in the IPv4 Routing Table: 20 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: 1058 Number of instances of unregistered ASNs: 1059 Number of 32-bit ASNs allocated by the RIRs: 46298 Number of 32-bit ASNs visible in the Routing Table: 38138 Prefixes from 32-bit ASNs in the Routing Table: 200947 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: 477 Number of addresses announced to Internet: 3105435904 Equivalent to 185 /8s, 25 /16s and 49 /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: 320176 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 256356 Total APNIC prefixes after maximum aggregation: 76822 APNIC Deaggregation factor: 3.34 Prefixes being announced from the APNIC address blocks: 247572 Unique aggregates announced from the APNIC address blocks: 103061 APNIC Region origin ASes present in the Internet Routing Table: 14569 APNIC Prefixes per ASN: 16.99 APNIC Region origin ASes announcing only one prefix: 4449 APNIC Region transit ASes present in the Internet Routing Table: 1965 Average APNIC Region AS path length visible: 4.7 Max APNIC Region AS path length visible: 35 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10107 Number of APNIC addresses announced to Internet: 748367616 Equivalent to 44 /8s, 155 /16s and 47 /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: 287688 Total ARIN prefixes after maximum aggregation: 129225 ARIN Deaggregation factor: 2.23 Prefixes being announced from the ARIN address blocks: 288849 Unique aggregates announced from the ARIN address blocks: 138347 ARIN Region origin ASes present in the Internet Routing Table: 19200 ARIN Prefixes per ASN: 15.04 ARIN Region origin ASes announcing only one prefix: 7041 ARIN Region transit ASes present in the Internet Routing Table: 1912 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: 5184 Number of ARIN addresses announced to Internet: 1348756224 Equivalent to 80 /8s, 100 /16s and 99 /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: 273049 Total RIPE prefixes after maximum aggregation: 133588 RIPE Deaggregation factor: 2.04 Prefixes being announced from the RIPE address blocks: 271013 Unique aggregates announced from the RIPE address blocks: 173975 RIPE Region origin ASes present in the Internet Routing Table: 28898 RIPE Prefixes per ASN: 9.38 RIPE Region origin ASes announcing only one prefix: 12067 RIPE Region transit ASes present in the Internet Routing Table: 3979 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: 12401 Number of RIPE addresses announced to Internet: 731480576 Equivalent to 43 /8s, 153 /16s and 130 /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: 123371 Total LACNIC prefixes after maximum aggregation: 29330 LACNIC Deaggregation factor: 4.21 Prefixes being announced from the LACNIC address blocks: 119916 Unique aggregates announced from the LACNIC address blocks: 48745 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: 2698 LACNIC Region transit ASes present in the Internet Routing Table: 2483 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: 171705600 Equivalent to 10 /8s, 60 /16s and 5 /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: 35504 Total AfriNIC prefixes after maximum aggregation: 6764 AfriNIC Deaggregation factor: 5.25 Prefixes being announced from the AfriNIC address blocks: 49199 Unique aggregates announced from the AfriNIC address blocks: 13968 AfriNIC Region origin ASes present in the Internet Routing Table: 1915 AfriNIC Prefixes per ASN: 25.69 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: 1277 Number of AfriNIC addresses announced to Internet: 104900096 Equivalent to 6 /8s, 64 /16s and 166 /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 10454 8754 93 CHINAMOBILE-CN China Mobile Communication 7545 6215 843 655 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4309 531 278 BBIL-AP BHARTI Airtel Ltd., IN 18403 4242 347 25 FPT-AS-AP FPT Telecom Company, VN 7552 3920 1332 26 VIETEL-AS-AP Viettel Group, VN 7713 3675 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3271 1869 102 VNPT-AS-VN VNPT Corp, VN 24560 2859 851 535 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 45090 2208 1439 86 TENCENT-NET-AP Shenzhen Tencent Computer 4766 2189 11523 648 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 13231 39700 4101 AMAZON-02, US 11492 4704 312 588 CABLEONE, US 7155 3859 286 85 VIASAT-SP-BACKBONE, US 174 3718 8756 927 COGENT-174, US 6327 3622 1320 81 SHAW, CA 22773 3386 3036 179 ASN-CXA-ALL-CCI-22773-RDC, US 749 3254 54879 2505 DNIC-AS-00749, US 16625 2997 1256 2215 AKAMAI-AS, US 396982 2966 3651 474 GOOGLE-CLOUD-PLATFORM, US 36352 2738 225 832 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 7671 1714 145 UNI2-AS, ES 39891 4797 293 62 ALJAWWALSTC-AS, SA 20940 3951 3395 123 AKAMAI-ASN1, NL 9009 3760 325 1973 M247, RO 12389 3069 2303 885 ROSTELECOM-AS PJSC Rostelecom. Technical 34984 2362 360 584 TELLCOM-AS, TR 212238 2117 150 1555 CDNEXT, GB 13188 1606 100 34 TRIOLAN, UA 8452 1599 1852 14 TE-AS TE-AS, EG 8551 1428 366 33 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 11989 3243 595 UNINET, MX 10620 3518 485 996 Telmex Colombia S.A., CO 13999 2511 540 362 Mega Cable, S.A. de C.V., MX 11830 1995 369 64 Instituto Costarricense de Electricidad y 28573 1359 2438 262 Claro NXT Telecomunicacoes Ltda, BR 3816 1332 784 205 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 11664 1197 278 33 Techtel LMDS Comunicaciones Interactivas 6147 1191 371 22 Telefonica del Peru S.A.A., PE 22884 1055 67 376 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 1744 631 30 RAYA-AS, EG 24863 1650 389 16 LINKdotNET-AS, EG 29571 1592 102 22 ORANGE-COTE-IVOIRE, CI 36992 1431 1518 283 ETISALAT-MISR, EG 36903 1249 554 96 MT-MPLS, MA 36935 1020 521 42 Vodafone-, EG 20011 980 185 285 INTERNET-SOLUTIONS, ZA 37069 932 1099 15 MOBINIL, EG 36914 538 82 3 KENET-AS, KE 3741 515 661 315 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 13231 39700 4101 AMAZON-02, US 8151 11989 3243 595 UNINET, MX 9808 10454 8754 93 CHINAMOBILE-CN China Mobile Communication 12479 7671 1714 145 UNI2-AS, ES 7545 6215 843 655 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 293 62 ALJAWWALSTC-AS, SA 11492 4704 312 588 CABLEONE, US 9498 4309 531 278 BBIL-AP BHARTI Airtel Ltd., IN 18403 4242 347 25 FPT-AS-AP FPT Telecom Company, VN 20940 3951 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 11989 11394 UNINET, MX 9808 10454 10361 CHINAMOBILE-CN China Mobile Communications Grou 12479 7671 7526 UNI2-AS, ES 7545 6215 5560 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 4735 ALJAWWALSTC-AS, SA 18403 4242 4217 FPT-AS-AP FPT Telecom Company, VN 11492 4704 4116 CABLEONE, US 9498 4309 4031 BBIL-AP BHARTI Airtel Ltd., IN 7552 3920 3894 VIETEL-AS-AP Viettel Group, VN 20940 3951 3828 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 /13:580 /14:1213 /15:2140 /16:13888 /17:8216 /18:13644 /19:24462 /20:43543 /21:51449 /22:111572 /23:101203 /24:604650 /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 6592 7671 UNI2-AS, ES 8151 6194 11989 UNINET, MX 11492 3531 4704 CABLEONE, US 39891 3489 4797 ALJAWWALSTC-AS, SA 6327 3417 3622 SHAW, CA 7155 2818 3859 VIASAT-SP-BACKBONE, US 22773 2526 3386 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2351 13231 AMAZON-02, US 30036 2228 2568 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2184 3518 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) ---------------------------------------------- 1:2339 2:1500 3:630 4:9 5:4671 6:162 7:6 8:1588 9:1 11:172 12:1365 13:347 14:2513 15:352 16:282 17:367 18:920 20:513 21:4 22:188 23:7450 24:2751 25:2 27:2731 29:19 31:3223 32:36 34:83 35:205 36:2488 37:4677 38:9090 39:907 40:169 41:4236 42:1896 43:2576 44:380 45:18472 46:5020 47:293 49:1932 50:1899 51:590 52:1551 54:298 55:1034 56:11 57:252 58:2194 59:1283 60:1171 61:2810 62:2941 63:1815 64:5435 65:2186 66:4598 67:3050 68:1125 69:3817 70:1064 71:620 72:2833 74:2768 75:1606 76:614 77:2732 78:1876 79:1754 80:2211 81:2048 82:3174 83:1425 84:1839 85:3408 86:1049 87:2135 88:1279 89:4333 90:780 91:8329 92:2711 93:2894 94:4070 95:4326 96:1411 97:312 98:994 99:667 100:72 101:1384 102:3906 103:32225 104:4810 105:752 106:1044 107:2614 108:1206 109:4076 110:2233 111:3335 112:2049 113:1798 114:1968 115:2169 116:2036 117:2735 118:2888 119:1944 120:1881 121:1369 122:2741 123:2160 124:1610 125:2859 126:91 128:1565 129:949 130:1285 131:1899 132:769 133:451 134:1529 135:331 136:1302 137:1123 138:2865 139:1613 140:1569 141:1491 142:1904 143:1661 144:1089 145:502 146:2155 147:2096 148:2676 149:2883 150:1249 151:1795 152:2090 153:497 154:8267 155:1632 156:3360 157:1888 158:1288 159:2432 160:3576 161:1904 162:3736 163:2089 164:1703 165:2198 166:1450 167:1870 168:4016 169:786 170:5061 171:1007 172:4399 173:3257 174:905 175:1298 176:3662 177:4646 178:3690 179:2534 180:2589 181:4057 182:3388 183:2053 184:2080 185:21539 186:5068 187:4409 188:4201 189:4195 190:9501 191:1469 192:11193 193:9441 194:7767 195:5504 196:3299 197:3681 198:6063 199:8482 200:8050 201:6294 202:10334 203:10540 204:4518 205:3584 206:4574 207:3431 208:4206 209:5149 210:4522 211:2534 212:4519 213:3763 214:1030 215:48 216:6680 217:3135 218:1331 219:378 220:2088 221:1057 222:723 223:2349 End of report