IPv4 R&E Routing Table Report 23:05 GMT Tue 15 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: 976090 Prefixes after maximum aggregation (per Origin AS): 375477 Deaggregation factor: 2.60 Unique aggregates announced (without unneeded subnets): 477230 Number of IPv4 prefixes with a valid ROA: 538453 Number of IPv4 prefixes with an invalid ROA: 647 Number of IPv4 prefixes with no ROA: 436990 Total ASes present in the Internet Routing Table: 76666 Prefixes per ASN: 12.73 Origin-only ASes present in the Internet Routing Table: 65778 Origin ASes announcing only one prefix: 26902 Transit ASes present in the Internet Routing Table: 10888 Transit-only ASes present in the Internet Routing Table: 533 Paths with bogon ASNs present in the IPv4 Routing Table: 21 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: 1064 Number of instances of unregistered ASNs: 1065 Number of 32-bit ASNs allocated by the RIRs: 46194 Number of 32-bit ASNs visible in the Routing Table: 38084 Prefixes from 32-bit ASNs in the Routing Table: 200278 Number of bogon 32-bit ASNs visible in the Routing Table: 12 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 437 Number of addresses announced to Internet: 3106807552 Equivalent to 185 /8s, 46 /16s and 31 /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: 320387 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 255332 Total APNIC prefixes after maximum aggregation: 76495 APNIC Deaggregation factor: 3.34 Prefixes being announced from the APNIC address blocks: 247087 Unique aggregates announced from the APNIC address blocks: 102819 APNIC Region origin ASes present in the Internet Routing Table: 14548 APNIC Prefixes per ASN: 16.98 APNIC Region origin ASes announcing only one prefix: 4438 APNIC Region transit ASes present in the Internet Routing Table: 1961 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: 10079 Number of APNIC addresses announced to Internet: 748424960 Equivalent to 44 /8s, 156 /16s and 15 /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: 288531 Total ARIN prefixes after maximum aggregation: 128932 ARIN Deaggregation factor: 2.24 Prefixes being announced from the ARIN address blocks: 289436 Unique aggregates announced from the ARIN address blocks: 137679 ARIN Region origin ASes present in the Internet Routing Table: 19201 ARIN Prefixes per ASN: 15.07 ARIN Region origin ASes announcing only one prefix: 7035 ARIN Region transit ASes present in the Internet Routing Table: 1911 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: 5177 Number of ARIN addresses announced to Internet: 1349508096 Equivalent to 80 /8s, 111 /16s and 220 /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: 272689 Total RIPE prefixes after maximum aggregation: 133302 RIPE Deaggregation factor: 2.05 Prefixes being announced from the RIPE address blocks: 270662 Unique aggregates announced from the RIPE address blocks: 173677 RIPE Region origin ASes present in the Internet Routing Table: 28882 RIPE Prefixes per ASN: 9.37 RIPE Region origin ASes announcing only one prefix: 12058 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: 28 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12377 Number of RIPE addresses announced to Internet: 731820288 Equivalent to 43 /8s, 158 /16s and 177 /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: 123074 Total LACNIC prefixes after maximum aggregation: 29367 LACNIC Deaggregation factor: 4.19 Prefixes being announced from the LACNIC address blocks: 119735 Unique aggregates announced from the LACNIC address blocks: 48874 LACNIC Region origin ASes present in the Internet Routing Table: 11226 LACNIC Prefixes per ASN: 10.67 LACNIC Region origin ASes announcing only one prefix: 2676 LACNIC Region transit ASes present in the Internet Routing Table: 2476 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: 9174 Number of LACNIC addresses announced to Internet: 171765760 Equivalent to 10 /8s, 60 /16s and 240 /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: 35400 Total AfriNIC prefixes after maximum aggregation: 6749 AfriNIC Deaggregation factor: 5.25 Prefixes being announced from the AfriNIC address blocks: 48733 Unique aggregates announced from the AfriNIC address blocks: 13806 AfriNIC Region origin ASes present in the Internet Routing Table: 1912 AfriNIC Prefixes per ASN: 25.49 AfriNIC Region origin ASes announcing only one prefix: 695 AfriNIC Region transit ASes present in the Internet Routing Table: 372 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: 105068800 Equivalent to 6 /8s, 67 /16s and 57 /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 10348 8753 89 CHINAMOBILE-CN China Mobile Communication 7545 6214 843 656 TPG-INTERNET-AP TPG Telecom Limited, AU 18403 4277 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4266 530 276 BBIL-AP BHARTI Airtel Ltd., IN 7552 3924 1332 26 VIETEL-AS-AP Viettel Group, VN 7713 3674 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3265 1869 102 VNPT-AS-VN VNPT Corp, VN 24560 2856 850 537 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 45090 2205 1439 86 TENCENT-NET-AP Shenzhen Tencent Computer 4755 2176 435 198 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 13195 39693 4077 AMAZON-02, US 11492 4693 311 586 CABLEONE, US 7155 3829 286 85 VIASAT-SP-BACKBONE, US 6327 3622 1320 81 SHAW, CA 174 3571 8761 936 COGENT-174, US 22773 3398 3036 183 ASN-CXA-ALL-CCI-22773-RDC, US 749 3254 54879 2505 DNIC-AS-00749, US 16625 2999 1257 2216 AKAMAI-AS, US 396982 2953 3649 467 GOOGLE-CLOUD-PLATFORM, US 36352 2657 219 813 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 3925 3395 125 AKAMAI-ASN1, NL 9009 3766 325 1958 M247, RO 12389 3068 2303 887 ROSTELECOM-AS, RU 34984 2364 360 582 TELLCOM-AS, TR 212238 2094 148 1541 CDNEXT, GB 13188 1606 100 34 TRIOLAN, UA 8452 1592 1852 14 TE-AS TE-AS, EG 62240 1481 98 745 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 593 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 1357 2438 262 Claro NXT Telecomunicacoes Ltda, BR 3816 1333 784 206 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1192 371 22 Telefonica del Peru S.A.A., PE 11664 1055 278 33 Techtel LMDS Comunicaciones Interactivas 22884 1052 67 378 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 6503 1040 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 1646 389 16 LINKdotNET-AS, EG 29571 1581 102 22 ORANGE-COTE-IVOIRE, CI 36992 1432 1518 283 ETISALAT-MISR, EG 36903 1249 554 96 MT-MPLS, MA 36935 1027 521 42 Vodafone-, EG 20011 981 185 285 INTERNET-SOLUTIONS, ZA 37069 932 1099 15 MOBINIL, EG 6713 560 1861 35 IAM-AS, MA 36914 545 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 13195 39693 4077 AMAZON-02, US 8151 11957 3243 593 UNINET, MX 9808 10348 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 4693 311 586 CABLEONE, US 18403 4277 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4266 530 276 BBIL-AP BHARTI Airtel Ltd., IN 20940 3925 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 11364 UNINET, MX 9808 10348 10259 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 4277 4252 FPT-AS-AP FPT Telecom Company, VN 11492 4693 4107 CABLEONE, US 9498 4266 3990 BBIL-AP BHARTI Airtel Ltd., IN 7552 3924 3898 VIETEL-AS-AP Viettel Group, VN 20940 3925 3800 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 /12:301 /13:581 /14:1215 /15:2139 /16:13899 /17:8233 /18:13647 /19:24385 /20:43637 /21:51624 /22:111817 /23:101189 /24:603257 /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 6625 7703 UNI2-AS, ES 8151 6161 11957 UNINET, MX 11492 3531 4693 CABLEONE, US 39891 3489 4797 ALJAWWALSTC-AS, SA 6327 3417 3622 SHAW, CA 7155 2787 3829 VIASAT-SP-BACKBONE, US 22773 2534 3398 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2354 13195 AMAZON-02, US 30036 2215 2555 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) ---------------------------------------------- 1:2338 2:1517 3:616 4:10 5:4628 6:163 7:6 8:1558 9:1 11:172 12:1370 13:352 14:2511 15:352 16:282 17:366 18:923 20:510 21:4 22:188 23:7397 24:2842 25:2 27:2725 29:19 31:3226 32:36 34:83 35:203 36:2396 37:4657 38:8871 39:903 40:160 41:4229 42:1904 43:2553 44:371 45:18452 46:4958 47:288 49:1920 50:1898 51:590 52:1553 54:299 55:1093 56:11 57:251 58:2199 59:1259 60:1170 61:2816 62:2899 63:1822 64:5496 65:2179 66:4608 67:3065 68:1125 69:3977 70:1066 71:617 72:2829 74:2795 75:1602 76:613 77:2739 78:1868 79:1749 80:2196 81:2028 82:3148 83:1418 84:1846 85:3405 86:1042 87:2143 88:1280 89:4308 90:782 91:8314 92:2785 93:2894 94:4060 95:4332 96:1441 97:313 98:998 99:644 100:72 101:1404 102:3748 103:32157 104:4776 105:753 106:984 107:2614 108:1199 109:4097 110:2232 111:3359 112:2043 113:1800 114:1965 115:2166 116:2033 117:2739 118:2896 119:1943 120:1874 121:1364 122:2745 123:2159 124:1609 125:2857 126:91 128:1547 129:955 130:1257 131:1899 132:779 133:451 134:1528 135:331 136:1301 137:1109 138:2863 139:1603 140:1572 141:1484 142:1905 143:1636 144:1083 145:515 146:2149 147:2110 148:2657 149:2895 150:1242 151:1743 152:2097 153:503 154:8017 155:1612 156:3199 157:1886 158:1281 159:2438 160:3565 161:1894 162:3741 163:2034 164:1696 165:2202 166:1453 167:1882 168:4037 169:784 170:5059 171:1002 172:4468 173:3224 174:909 175:1296 176:3691 177:4648 178:3797 179:2281 180:2575 181:4060 182:3364 183:2057 184:2134 185:21494 186:5058 187:4403 188:4190 189:4175 190:9617 191:1474 192:11205 193:9432 194:7762 195:5502 196:3288 197:3707 198:6036 199:8433 200:8053 201:6267 202:10327 203:10523 204:4514 205:3621 206:4602 207:3436 208:4195 209:5133 210:4514 211:2530 212:4505 213:3758 214:1033 215:48 216:6615 217:3107 218:1332 219:377 220:2087 221:1060 222:715 223:2323 End of report