IPv4 R&E Routing Table Report 23:05 GMT Mon 14 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: 975365 Prefixes after maximum aggregation (per Origin AS): 375423 Deaggregation factor: 2.60 Unique aggregates announced (without unneeded subnets): 477076 Number of IPv4 prefixes with a valid ROA: 537958 Number of IPv4 prefixes with an invalid ROA: 663 Number of IPv4 prefixes with no ROA: 436744 Total ASes present in the Internet Routing Table: 76626 Prefixes per ASN: 12.73 Origin-only ASes present in the Internet Routing Table: 65734 Origin ASes announcing only one prefix: 26897 Transit ASes present in the Internet Routing Table: 10892 Transit-only ASes present in the Internet Routing Table: 532 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: 1075 Number of instances of unregistered ASNs: 1076 Number of 32-bit ASNs allocated by the RIRs: 46183 Number of 32-bit ASNs visible in the Routing Table: 38044 Prefixes from 32-bit ASNs in the Routing Table: 200123 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: 3106525696 Equivalent to 185 /8s, 41 /16s and 210 /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: 320090 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 255205 Total APNIC prefixes after maximum aggregation: 76482 APNIC Deaggregation factor: 3.34 Prefixes being announced from the APNIC address blocks: 246977 Unique aggregates announced from the APNIC address blocks: 102732 APNIC Region origin ASes present in the Internet Routing Table: 14535 APNIC Prefixes per ASN: 16.99 APNIC Region origin ASes announcing only one prefix: 4444 APNIC Region transit ASes present in the Internet Routing Table: 1967 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: 10065 Number of APNIC addresses announced to Internet: 748403456 Equivalent to 44 /8s, 155 /16s and 187 /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: 288289 Total ARIN prefixes after maximum aggregation: 128972 ARIN Deaggregation factor: 2.24 Prefixes being announced from the ARIN address blocks: 289163 Unique aggregates announced from the ARIN address blocks: 137640 ARIN Region origin ASes present in the Internet Routing Table: 19200 ARIN Prefixes per ASN: 15.06 ARIN Region origin ASes announcing only one prefix: 7032 ARIN Region transit ASes present in the Internet Routing Table: 1910 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: 1349372416 Equivalent to 80 /8s, 109 /16s and 202 /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: 272531 Total RIPE prefixes after maximum aggregation: 133217 RIPE Deaggregation factor: 2.05 Prefixes being announced from the RIPE address blocks: 270513 Unique aggregates announced from the RIPE address blocks: 173655 RIPE Region origin ASes present in the Internet Routing Table: 28862 RIPE Prefixes per ASN: 9.37 RIPE Region origin ASes announcing only one prefix: 12049 RIPE Region transit ASes present in the Internet Routing Table: 3968 Average RIPE Region AS path length visible: 4.9 Max RIPE Region AS path length visible: 31 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12355 Number of RIPE addresses announced to Internet: 731799552 Equivalent to 43 /8s, 158 /16s and 96 /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: 122959 Total LACNIC prefixes after maximum aggregation: 29375 LACNIC Deaggregation factor: 4.19 Prefixes being announced from the LACNIC address blocks: 119618 Unique aggregates announced from the LACNIC address blocks: 48881 LACNIC Region origin ASes present in the Internet Routing Table: 11226 LACNIC Prefixes per ASN: 10.66 LACNIC Region origin ASes announcing only one prefix: 2681 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: 9175 Number of LACNIC addresses announced to Internet: 171787008 Equivalent to 10 /8s, 61 /16s and 67 /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: 35306 Total AfriNIC prefixes after maximum aggregation: 6740 AfriNIC Deaggregation factor: 5.24 Prefixes being announced from the AfriNIC address blocks: 48657 Unique aggregates announced from the AfriNIC address blocks: 13797 AfriNIC Region origin ASes present in the Internet Routing Table: 1905 AfriNIC Prefixes per ASN: 25.54 AfriNIC Region origin ASes announcing only one prefix: 691 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: 1272 Number of AfriNIC addresses announced to Internet: 104943872 Equivalent to 6 /8s, 65 /16s and 81 /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 10306 8753 89 CHINAMOBILE-CN China Mobile Communication 7545 6213 843 655 TPG-INTERNET-AP TPG Telecom Limited, AU 18403 4272 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 2854 849 538 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 13161 39687 4096 AMAZON-02, US 11492 4693 311 586 CABLEONE, US 7155 3829 286 85 VIASAT-SP-BACKBONE, US 6327 3622 1320 81 SHAW, CA 174 3540 8765 953 COGENT-174, US 22773 3398 3036 183 ASN-CXA-ALL-CCI-22773-RDC, US 749 3254 54879 2505 DNIC-AS-00749, US 16625 2996 1256 2214 AKAMAI-AS, US 396982 2953 3649 467 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 7710 1714 145 UNI2-AS, ES 39891 4797 293 62 ALJAWWALSTC-AS, SA 20940 3922 3395 125 AKAMAI-ASN1, NL 9009 3764 325 1957 M247, RO 12389 3066 2303 887 ROSTELECOM-AS, RU 34984 2362 360 580 TELLCOM-AS, TR 212238 2092 148 1542 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 11959 3245 585 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 1357 2438 262 Claro NXT Telecomunicacoes Ltda, BR 3816 1333 784 206 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1194 371 22 Telefonica del Peru S.A.A., PE 11664 1054 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 1430 1518 287 ETISALAT-MISR, EG 36903 1249 554 96 MT-MPLS, MA 36935 1021 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 543 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 13161 39687 4096 AMAZON-02, US 8151 11959 3245 585 UNINET, MX 9808 10306 8753 89 CHINAMOBILE-CN China Mobile Communication 12479 7710 1714 145 UNI2-AS, ES 7545 6213 843 655 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 293 62 ALJAWWALSTC-AS, SA 11492 4693 311 586 CABLEONE, US 18403 4272 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 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 11959 11374 UNINET, MX 9808 10306 10217 CHINAMOBILE-CN China Mobile Communications Grou 12479 7710 7565 UNI2-AS, ES 7545 6213 5558 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 4735 ALJAWWALSTC-AS, SA 18403 4272 4247 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 3922 3797 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 /16:13898 /17:8227 /18:13639 /19:24391 /20:43605 /21:51591 /22:111765 /23:101118 /24:602729 /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 6632 7710 UNI2-AS, ES 8151 6160 11959 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 2334 13161 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) ---------------------------------------------- 1:2339 2:1514 3:615 4:10 5:4624 6:162 7:6 8:1549 9:1 11:172 12:1371 13:351 14:2510 15:352 16:282 17:364 18:921 20:483 21:4 22:188 23:7400 24:2842 25:2 27:2726 29:19 31:3221 32:37 34:83 35:202 36:2397 37:4657 38:8850 39:897 40:160 41:4181 42:1904 43:2558 44:373 45:18441 46:4951 47:288 49:1924 50:1899 51:590 52:1553 54:298 55:1041 56:11 57:248 58:2200 59:1257 60:1171 61:2816 62:2892 63:1826 64:5485 65:2168 66:4614 67:3066 68:1126 69:3979 70:1066 71:618 72:2824 74:2793 75:1603 76:597 77:2740 78:1868 79:1747 80:2192 81:2026 82:3153 83:1422 84:1838 85:3402 86:1043 87:2144 88:1279 89:4308 90:777 91:8306 92:2785 93:2894 94:4066 95:4331 96:1440 97:313 98:995 99:641 100:71 101:1403 102:3752 103:32149 104:4771 105:753 106:984 107:2614 108:1196 109:4095 110:2232 111:3357 112:2043 113:1805 114:1963 115:2168 116:2035 117:2738 118:2895 119:1941 120:1870 121:1365 122:2745 123:2157 124:1610 125:2857 126:91 128:1551 129:954 130:1257 131:1892 132:776 133:451 134:1527 135:329 136:1302 137:1111 138:2869 139:1604 140:1570 141:1482 142:1903 143:1631 144:1081 145:514 146:2150 147:2103 148:2650 149:2911 150:1242 151:1742 152:2088 153:503 154:8016 155:1627 156:3200 157:1885 158:1276 159:2435 160:3559 161:1893 162:3701 163:2029 164:1696 165:2203 166:1454 167:1879 168:4043 169:785 170:5063 171:1001 172:4465 173:3212 174:909 175:1288 176:3681 177:4671 178:3782 179:2282 180:2580 181:4057 182:3364 183:2053 184:2134 185:21471 186:5044 187:4397 188:4187 189:4172 190:9618 191:1464 192:11190 193:9420 194:7766 195:5503 196:3291 197:3693 198:6031 199:8449 200:8009 201:6230 202:10322 203:10517 204:4522 205:3625 206:4603 207:3437 208:4192 209:5138 210:4508 211:2530 212:4506 213:3757 214:1032 215:48 216:6612 217:3099 218:1332 219:377 220:2087 221:1060 222:715 223:2317 End of report