IPv4 R&E Routing Table Report 23:05 GMT Wed 16 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: 975824 Prefixes after maximum aggregation (per Origin AS): 375563 Deaggregation factor: 2.60 Unique aggregates announced (without unneeded subnets): 477387 Number of IPv4 prefixes with a valid ROA: 538586 Number of IPv4 prefixes with an invalid ROA: 623 Number of IPv4 prefixes with no ROA: 436615 Total ASes present in the Internet Routing Table: 76667 Prefixes per ASN: 12.73 Origin-only ASes present in the Internet Routing Table: 65781 Origin ASes announcing only one prefix: 26902 Transit ASes present in the Internet Routing Table: 10886 Transit-only ASes present in the Internet Routing Table: 535 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: 1050 Number of instances of unregistered ASNs: 1051 Number of 32-bit ASNs allocated by the RIRs: 46209 Number of 32-bit ASNs visible in the Routing Table: 38095 Prefixes from 32-bit ASNs in the Routing Table: 200337 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: 430 Number of addresses announced to Internet: 3106695168 Equivalent to 185 /8s, 44 /16s and 104 /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: 320401 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 255389 Total APNIC prefixes after maximum aggregation: 76501 APNIC Deaggregation factor: 3.34 Prefixes being announced from the APNIC address blocks: 247105 Unique aggregates announced from the APNIC address blocks: 102859 APNIC Region origin ASes present in the Internet Routing Table: 14555 APNIC Prefixes per ASN: 16.98 APNIC Region origin ASes announcing only one prefix: 4447 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: 34 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10088 Number of APNIC addresses announced to Internet: 748446720 Equivalent to 44 /8s, 156 /16s and 100 /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: 288282 Total ARIN prefixes after maximum aggregation: 129003 ARIN Deaggregation factor: 2.23 Prefixes being announced from the ARIN address blocks: 289233 Unique aggregates announced from the ARIN address blocks: 137658 ARIN Region origin ASes present in the Internet Routing Table: 19207 ARIN Prefixes per ASN: 15.06 ARIN Region origin ASes announcing only one prefix: 7044 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: 5181 Number of ARIN addresses announced to Internet: 1349488384 Equivalent to 80 /8s, 111 /16s and 143 /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: 272736 Total RIPE prefixes after maximum aggregation: 133330 RIPE Deaggregation factor: 2.05 Prefixes being announced from the RIPE address blocks: 270711 Unique aggregates announced from the RIPE address blocks: 173863 RIPE Region origin ASes present in the Internet Routing Table: 28879 RIPE Prefixes per ASN: 9.37 RIPE Region origin ASes announcing only one prefix: 12046 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: 12378 Number of RIPE addresses announced to Internet: 731806464 Equivalent to 43 /8s, 158 /16s and 123 /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: 123073 Total LACNIC prefixes after maximum aggregation: 29371 LACNIC Deaggregation factor: 4.19 Prefixes being announced from the LACNIC address blocks: 119688 Unique aggregates announced from the LACNIC address blocks: 48841 LACNIC Region origin ASes present in the Internet Routing Table: 11218 LACNIC Prefixes per ASN: 10.67 LACNIC Region origin ASes announcing only one prefix: 2668 LACNIC Region transit ASes present in the Internet Routing Table: 2474 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: 171655168 Equivalent to 10 /8s, 59 /16s and 64 /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: 35294 Total AfriNIC prefixes after maximum aggregation: 6728 AfriNIC Deaggregation factor: 5.25 Prefixes being announced from the AfriNIC address blocks: 48657 Unique aggregates announced from the AfriNIC address blocks: 13798 AfriNIC Region origin ASes present in the Internet Routing Table: 1910 AfriNIC Prefixes per ASN: 25.47 AfriNIC Region origin ASes announcing only one prefix: 697 AfriNIC Region transit ASes present in the Internet Routing Table: 370 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: 1274 Number of AfriNIC addresses announced to Internet: 105084672 Equivalent to 6 /8s, 67 /16s and 119 /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 6213 843 655 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 3670 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 2206 1439 86 TENCENT-NET-AP Shenzhen Tencent Computer 4755 2174 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 13200 39693 4091 AMAZON-02, US 11492 4694 311 587 CABLEONE, US 7155 3829 286 85 VIASAT-SP-BACKBONE, US 6327 3622 1320 81 SHAW, CA 174 3548 8762 937 COGENT-174, US 22773 3398 3036 183 ASN-CXA-ALL-CCI-22773-RDC, US 749 3254 54879 2505 DNIC-AS-00749, US 16625 2999 1256 2215 AKAMAI-AS, US 396982 2956 3651 469 GOOGLE-CLOUD-PLATFORM, US 36352 2657 219 812 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 7697 1714 145 UNI2-AS, ES 39891 4797 293 62 ALJAWWALSTC-AS, SA 20940 3928 3395 125 AKAMAI-ASN1, NL 9009 3765 325 1957 M247, RO 12389 3073 2303 887 ROSTELECOM-AS PJSC Rostelecom. Technical 34984 2363 360 582 TELLCOM-AS, TR 212238 2096 148 1542 CDNEXT, GB 13188 1606 100 34 TRIOLAN, UA 8452 1595 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 11956 3243 594 UNINET, MX 10620 3522 486 992 Telmex Colombia S.A., CO 13999 2512 539 364 Mega Cable, S.A. de C.V., MX 11830 1993 369 64 Instituto Costarricense de Electricidad y 28573 1358 2438 262 Claro NXT Telecomunicacoes Ltda, BR 3816 1333 784 206 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1192 371 21 Telefonica del Peru S.A.A., PE 11664 1057 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 1733 607 31 RAYA-AS, EG 24863 1646 389 16 LINKdotNET-AS, EG 29571 1581 102 22 ORANGE-COTE-IVOIRE, CI 36992 1433 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 561 1861 35 IAM-AS, MA 36914 548 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 13200 39693 4091 AMAZON-02, US 8151 11956 3243 594 UNINET, MX 9808 10348 8753 89 CHINAMOBILE-CN China Mobile Communication 12479 7697 1714 145 UNI2-AS, ES 7545 6213 843 655 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 293 62 ALJAWWALSTC-AS, SA 11492 4694 311 587 CABLEONE, US 18403 4277 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4266 530 276 BBIL-AP BHARTI Airtel Ltd., IN 20940 3928 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 11956 11362 UNINET, MX 9808 10348 10259 CHINAMOBILE-CN China Mobile Communications Grou 12479 7697 7552 UNI2-AS, ES 7545 6213 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 4694 4107 CABLEONE, US 9498 4266 3990 BBIL-AP BHARTI Airtel Ltd., IN 7552 3924 3898 VIETEL-AS-AP Viettel Group, VN 20940 3928 3803 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 /15:2137 /16:13889 /17:8231 /18:13653 /19:24452 /20:43589 /21:51611 /22:111795 /23:101230 /24:602975 /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 6618 7697 UNI2-AS, ES 8151 6162 11956 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 2534 3398 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2358 13200 AMAZON-02, US 30036 2206 2542 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) ---------------------------------------------- 1:2346 2:1516 3:616 4:10 5:4624 6:163 7:6 8:1553 9:1 11:172 12:1372 13:352 14:2512 15:352 16:283 17:367 18:923 20:510 21:4 22:188 23:7393 24:2843 25:2 27:2728 29:19 31:3224 32:36 34:83 35:203 36:2396 37:4653 38:8886 39:903 40:160 41:4224 42:1909 43:2549 44:375 45:18453 46:4979 47:289 49:1920 50:1896 51:590 52:1552 54:299 55:1091 56:11 57:252 58:2200 59:1256 60:1171 61:2816 62:2901 63:1823 64:5505 65:2180 66:4605 67:3065 68:1125 69:3980 70:1063 71:613 72:2826 74:2792 75:1602 76:613 77:2740 78:1872 79:1751 80:2196 81:2036 82:3146 83:1425 84:1847 85:3401 86:1043 87:2143 88:1277 89:4301 90:781 91:8312 92:2785 93:2897 94:4059 95:4333 96:1441 97:313 98:997 99:642 100:72 101:1387 102:3740 103:32168 104:4765 105:753 106:984 107:2614 108:1197 109:4095 110:2231 111:3358 112:2043 113:1800 114:1967 115:2161 116:2031 117:2739 118:2888 119:1942 120:1874 121:1363 122:2744 123:2160 124:1608 125:2857 126:91 128:1547 129:951 130:1254 131:1903 132:779 133:451 134:1526 135:331 136:1244 137:1107 138:2867 139:1601 140:1575 141:1466 142:1905 143:1638 144:1077 145:514 146:2146 147:2105 148:2660 149:2919 150:1242 151:1748 152:2096 153:503 154:8023 155:1613 156:3186 157:1890 158:1286 159:2435 160:3566 161:1894 162:3738 163:2054 164:1697 165:2204 166:1441 167:1882 168:4039 169:782 170:4890 171:1001 172:4465 173:3222 174:903 175:1297 176:3696 177:4649 178:3755 179:2281 180:2574 181:4063 182:3364 183:2055 184:2135 185:21514 186:5058 187:4404 188:4198 189:4168 190:9604 191:1471 192:11192 193:9425 194:7760 195:5505 196:3264 197:3699 198:6037 199:8433 200:8059 201:6274 202:10328 203:10511 204:4517 205:3637 206:4585 207:3439 208:4198 209:5143 210:4514 211:2530 212:4519 213:3754 214:1038 215:48 216:6625 217:3104 218:1332 219:377 220:2086 221:1058 222:715 223:2323 End of report