IPv4 R&E Routing Table Report 23:05 GMT Sun 23 Mar, 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: 974714 Prefixes after maximum aggregation (per Origin AS): 373890 Deaggregation factor: 2.61 Unique aggregates announced (without unneeded subnets): 475726 Number of IPv4 prefixes with a valid ROA: 535732 Number of IPv4 prefixes with an invalid ROA: 1024 Number of IPv4 prefixes with no ROA: 437958 Total ASes present in the Internet Routing Table: 76573 Prefixes per ASN: 12.73 Origin-only ASes present in the Internet Routing Table: 65706 Origin ASes announcing only one prefix: 26867 Transit ASes present in the Internet Routing Table: 10867 Transit-only ASes present in the Internet Routing Table: 533 Paths with bogon ASNs present in the IPv4 Routing Table: 14 Average AS path length visible in the Internet Routing Table: 4.7 Max AS path length visible: 70 Max AS path prepend of ASN ( 37447) 66 Prefixes from unregistered ASNs in the Routing Table: 1004 Number of instances of unregistered ASNs: 1008 Number of 32-bit ASNs allocated by the RIRs: 46127 Number of 32-bit ASNs visible in the Routing Table: 37954 Prefixes from 32-bit ASNs in the Routing Table: 199499 Number of bogon 32-bit ASNs visible in the Routing Table: 20 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 487 Number of addresses announced to Internet: 3108350464 Equivalent to 185 /8s, 69 /16s and 170 /24s Percentage of available address space announced: 84.0 Percentage of allocated address space announced: 84.0 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: 319795 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 255119 Total APNIC prefixes after maximum aggregation: 76238 APNIC Deaggregation factor: 3.35 Prefixes being announced from the APNIC address blocks: 246866 Unique aggregates announced from the APNIC address blocks: 102585 APNIC Region origin ASes present in the Internet Routing Table: 14511 APNIC Prefixes per ASN: 17.01 APNIC Region origin ASes announcing only one prefix: 4429 APNIC Region transit ASes present in the Internet Routing Table: 1954 Average APNIC Region AS path length visible: 4.3 Max APNIC Region AS path length visible: 49 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10039 Number of APNIC addresses announced to Internet: 748963840 Equivalent to 44 /8s, 164 /16s and 72 /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: 288334 Total ARIN prefixes after maximum aggregation: 128320 ARIN Deaggregation factor: 2.25 Prefixes being announced from the ARIN address blocks: 288986 Unique aggregates announced from the ARIN address blocks: 136778 ARIN Region origin ASes present in the Internet Routing Table: 19188 ARIN Prefixes per ASN: 15.06 ARIN Region origin ASes announcing only one prefix: 7027 ARIN Region transit ASes present in the Internet Routing Table: 1907 Average ARIN Region AS path length visible: 4.5 Max ARIN Region AS path length visible: 28 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5159 Number of ARIN addresses announced to Internet: 1350177536 Equivalent to 80 /8s, 122 /16s and 19 /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: 271796 Total RIPE prefixes after maximum aggregation: 132673 RIPE Deaggregation factor: 2.05 Prefixes being announced from the RIPE address blocks: 270126 Unique aggregates announced from the RIPE address blocks: 173508 RIPE Region origin ASes present in the Internet Routing Table: 28851 RIPE Prefixes per ASN: 9.36 RIPE Region origin ASes announcing only one prefix: 12043 RIPE Region transit ASes present in the Internet Routing Table: 3970 Average RIPE Region AS path length visible: 5.0 Max RIPE Region AS path length visible: 32 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12319 Number of RIPE addresses announced to Internet: 732379648 Equivalent to 43 /8s, 167 /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: 123461 Total LACNIC prefixes after maximum aggregation: 29276 LACNIC Deaggregation factor: 4.22 Prefixes being announced from the LACNIC address blocks: 120126 Unique aggregates announced from the LACNIC address blocks: 48885 LACNIC Region origin ASes present in the Internet Routing Table: 11212 LACNIC Prefixes per ASN: 10.71 LACNIC Region origin ASes announcing only one prefix: 2669 LACNIC Region transit ASes present in the Internet Routing Table: 2476 Average LACNIC Region AS path length visible: 5.3 Max LACNIC Region AS path length visible: 35 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9163 Number of LACNIC addresses announced to Internet: 171595008 Equivalent to 10 /8s, 58 /16s and 85 /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: 35000 Total AfriNIC prefixes after maximum aggregation: 6757 AfriNIC Deaggregation factor: 5.18 Prefixes being announced from the AfriNIC address blocks: 48123 Unique aggregates announced from the AfriNIC address blocks: 13558 AfriNIC Region origin ASes present in the Internet Routing Table: 1910 AfriNIC Prefixes per ASN: 25.20 AfriNIC Region origin ASes announcing only one prefix: 699 AfriNIC Region transit ASes present in the Internet Routing Table: 372 Average AfriNIC Region AS path length visible: 5.5 Max AfriNIC Region AS path length visible: 70 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1274 Number of AfriNIC addresses announced to Internet: 104992512 Equivalent to 6 /8s, 66 /16s and 15 /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 10325 8753 88 CHINAMOBILE-CN China Mobile Communication 7545 6215 843 657 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4266 530 276 BBIL-AP BHARTI Airtel Ltd., IN 18403 4243 347 25 FPT-AS-AP FPT Telecom Company, VN 7552 3912 1332 26 VIETEL-AS-AP Viettel Group, VN 7713 3689 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3266 1869 103 VNPT-AS-VN VNPT Corp, VN 24560 2843 847 540 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 45090 2205 1439 86 TENCENT-NET-AP Shenzhen Tencent Computer 4755 2172 434 197 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 12965 39644 3986 AMAZON-02, US 11492 4675 310 585 CABLEONE, US 7155 4173 286 83 VIASAT-SP-BACKBONE, US 6327 3623 1320 81 SHAW, CA 174 3597 8765 951 COGENT-174, US 22773 3379 3036 182 ASN-CXA-ALL-CCI-22773-RDC, US 749 3259 54879 2506 DNIC-AS-00749, US 16625 2966 1247 2188 AKAMAI-AS, US 396982 2943 3660 456 GOOGLE-CLOUD-PLATFORM, US 36352 2569 213 804 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 7755 1714 145 UNI2-AS, ES 39891 4797 293 62 ALJAWWALSTC-AS, SA 20940 3899 3395 126 AKAMAI-ASN1, NL 9009 3763 324 1949 M247, RO 12389 3000 2303 889 ROSTELECOM-AS, RU 34984 2368 360 584 TELLCOM-AS, TR 212238 2036 145 1496 CDNEXT, GB 13188 1606 100 34 TRIOLAN, UA 8452 1521 1852 14 TE-AS TE-AS, EG 62240 1489 98 747 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 11853 3241 582 UNINET, MX 10620 3523 486 970 Telmex Colombia S.A., CO 13999 2506 539 376 Mega Cable, S.A. de C.V., MX 11830 1993 369 64 Instituto Costarricense de Electricidad y 28573 1351 2437 265 Claro NXT Telecomunicacoes Ltda, BR 3816 1329 781 210 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1195 371 22 Telefonica del Peru S.A.A., PE 11664 1166 278 33 Techtel LMDS Comunicaciones Interactivas 6503 1070 359 174 Axtel, S.A.B. de C.V., MX 22884 1050 67 376 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 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 1703 599 30 RAYA-AS, EG 24863 1624 389 16 LINKdotNET-AS, EG 29571 1564 102 23 ORANGE-COTE-IVOIRE, CI 36992 1426 1518 286 ETISALAT-MISR, EG 36903 1249 554 96 MT-MPLS, MA 36935 1006 521 42 Vodafone-, EG 20011 980 183 284 INTERNET-SOLUTIONS, ZA 37069 910 1084 18 MOBINIL, EG 6713 561 1861 35 IAM-AS, MA 36914 534 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 12965 39644 3986 AMAZON-02, US 8151 11853 3241 582 UNINET, MX 9808 10325 8753 88 CHINAMOBILE-CN China Mobile Communication 12479 7755 1714 145 UNI2-AS, ES 7545 6215 843 657 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 293 62 ALJAWWALSTC-AS, SA 11492 4675 310 585 CABLEONE, US 9498 4266 530 276 BBIL-AP BHARTI Airtel Ltd., IN 18403 4243 347 25 FPT-AS-AP FPT Telecom Company, VN 7155 4173 286 83 VIASAT-SP-BACKBONE, US 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 11853 11271 UNINET, MX 9808 10325 10237 CHINAMOBILE-CN China Mobile Communications Grou 12479 7755 7610 UNI2-AS, ES 7545 6215 5558 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 4735 ALJAWWALSTC-AS, SA 18403 4243 4218 FPT-AS-AP FPT Telecom Company, VN 11492 4675 4090 CABLEONE, US 7155 4173 4090 VIASAT-SP-BACKBONE, US 9498 4266 3990 BBIL-AP BHARTI Airtel Ltd., IN 7552 3912 3886 VIETEL-AS-AP Viettel Group, VN 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 /12:303 /13:582 /14:1215 /15:2145 /16:13931 /17:8240 /18:13640 /19:24488 /20:43679 /21:51550 /22:111688 /23:100974 /24:602113 /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 6688 7755 UNI2-AS, ES 8151 6055 11853 UNINET, MX 11492 3528 4675 CABLEONE, US 39891 3489 4797 ALJAWWALSTC-AS, SA 6327 3418 3623 SHAW, CA 7155 3120 4173 VIASAT-SP-BACKBONE, US 22773 2515 3379 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2336 12965 AMAZON-02, US 30036 2217 2557 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2185 3523 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) ---------------------------------------------- 1:2334 2:1503 3:598 4:10 5:4563 6:162 7:6 8:1551 9:1 11:172 12:1372 13:350 14:2512 15:351 16:279 17:361 18:913 20:463 21:4 22:188 23:7297 24:3020 25:2 27:2732 29:19 31:3218 32:37 34:82 35:204 36:2402 37:4707 38:8840 39:899 40:154 41:4193 42:1923 43:2548 44:356 45:18409 46:4944 47:288 49:1985 50:1891 51:591 52:1556 54:301 55:1075 56:9 57:250 58:2193 59:1252 60:1169 61:2818 62:2897 63:1830 64:5488 65:2178 66:4588 67:3013 68:1116 69:3965 70:1107 71:612 72:2850 74:2806 75:1656 76:611 77:2696 78:1855 79:1742 80:2190 81:2000 82:2851 83:1392 84:1812 85:3370 86:1041 87:2149 88:1278 89:4322 90:783 91:8314 92:2787 93:2889 94:4015 95:4255 96:1423 97:314 98:994 99:740 100:71 101:1303 102:3656 103:32235 104:4809 105:732 106:998 107:2595 108:1200 109:3793 110:2229 111:3330 112:2039 113:1790 114:1947 115:2119 116:2037 117:2740 118:2857 119:1941 120:1874 121:1358 122:2739 123:2168 124:1608 125:2866 126:88 128:1543 129:955 130:1269 131:1872 132:773 133:451 134:1527 135:329 136:1277 137:1098 138:2878 139:1611 140:1561 141:1480 142:1819 143:1637 144:1057 145:480 146:2150 147:2096 148:2615 149:2888 150:1245 151:2034 152:2097 153:504 154:7889 155:1614 156:3301 157:1899 158:1258 159:2424 160:3553 161:1941 162:3700 163:1933 164:1692 165:2198 166:1410 167:1884 168:4050 169:782 170:5109 171:1001 172:4452 173:3227 174:910 175:1274 176:3670 177:4702 178:3817 179:2334 180:2571 181:4041 182:3370 183:2055 184:2292 185:21471 186:5082 187:4400 188:4213 189:4175 190:9628 191:1543 192:11146 193:9410 194:7763 195:5522 196:3238 197:3763 198:6053 199:8394 200:8050 201:6281 202:10337 203:10523 204:4512 205:3630 206:4583 207:3438 208:4185 209:5146 210:4506 211:2520 212:4504 213:3736 214:1050 215:48 216:6577 217:3088 218:1326 219:380 220:2082 221:1066 222:719 223:2318 End of report