IPv4 R&E Routing Table Report 23:05 GMT Sat 22 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: 974634 Prefixes after maximum aggregation (per Origin AS): 373800 Deaggregation factor: 2.61 Unique aggregates announced (without unneeded subnets): 475625 Number of IPv4 prefixes with a valid ROA: 535655 Number of IPv4 prefixes with an invalid ROA: 1030 Number of IPv4 prefixes with no ROA: 437949 Total ASes present in the Internet Routing Table: 76564 Prefixes per ASN: 12.73 Origin-only ASes present in the Internet Routing Table: 65707 Origin ASes announcing only one prefix: 26865 Transit ASes present in the Internet Routing Table: 10857 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: 73 Max AS path prepend of ASN ( 37447) 69 Prefixes from unregistered ASNs in the Routing Table: 1013 Number of instances of unregistered ASNs: 1017 Number of 32-bit ASNs allocated by the RIRs: 46119 Number of 32-bit ASNs visible in the Routing Table: 37953 Prefixes from 32-bit ASNs in the Routing Table: 199477 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: 500 Number of addresses announced to Internet: 3108273408 Equivalent to 185 /8s, 68 /16s and 125 /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: 319842 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 255085 Total APNIC prefixes after maximum aggregation: 76201 APNIC Deaggregation factor: 3.35 Prefixes being announced from the APNIC address blocks: 246842 Unique aggregates announced from the APNIC address blocks: 102558 APNIC Region origin ASes present in the Internet Routing Table: 14505 APNIC Prefixes per ASN: 17.02 APNIC Region origin ASes announcing only one prefix: 4426 APNIC Region transit ASes present in the Internet Routing Table: 1952 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: 10034 Number of APNIC addresses announced to Internet: 748957696 Equivalent to 44 /8s, 164 /16s and 48 /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: 288284 Total ARIN prefixes after maximum aggregation: 128314 ARIN Deaggregation factor: 2.25 Prefixes being announced from the ARIN address blocks: 288912 Unique aggregates announced from the ARIN address blocks: 136739 ARIN Region origin ASes present in the Internet Routing Table: 19185 ARIN Prefixes per ASN: 15.06 ARIN Region origin ASes announcing only one prefix: 7025 ARIN Region transit ASes present in the Internet Routing Table: 1906 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: 5158 Number of ARIN addresses announced to Internet: 1350139392 Equivalent to 80 /8s, 121 /16s and 126 /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: 272096 Total RIPE prefixes after maximum aggregation: 132648 RIPE Deaggregation factor: 2.05 Prefixes being announced from the RIPE address blocks: 270440 Unique aggregates announced from the RIPE address blocks: 173489 RIPE Region origin ASes present in the Internet Routing Table: 28850 RIPE Prefixes per ASN: 9.37 RIPE Region origin ASes announcing only one prefix: 12051 RIPE Region transit ASes present in the Internet Routing Table: 3966 Average RIPE Region AS path length visible: 5.0 Max RIPE Region AS path length visible: 31 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12319 Number of RIPE addresses announced to Internet: 732323584 Equivalent to 43 /8s, 166 /16s and 95 /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: 123172 Total LACNIC prefixes after maximum aggregation: 29257 LACNIC Deaggregation factor: 4.21 Prefixes being announced from the LACNIC address blocks: 119828 Unique aggregates announced from the LACNIC address blocks: 48867 LACNIC Region origin ASes present in the Internet Routing Table: 11211 LACNIC Prefixes per ASN: 10.69 LACNIC Region origin ASes announcing only one prefix: 2666 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: 9166 Number of LACNIC addresses announced to Internet: 171583232 Equivalent to 10 /8s, 58 /16s and 39 /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: 34984 Total AfriNIC prefixes after maximum aggregation: 6751 AfriNIC Deaggregation factor: 5.18 Prefixes being announced from the AfriNIC address blocks: 48112 Unique aggregates announced from the AfriNIC address blocks: 13551 AfriNIC Region origin ASes present in the Internet Routing Table: 1912 AfriNIC Prefixes per ASN: 25.16 AfriNIC Region origin ASes announcing only one prefix: 697 AfriNIC Region transit ASes present in the Internet Routing Table: 369 Average AfriNIC Region AS path length visible: 5.5 Max AfriNIC Region AS path length visible: 73 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1276 Number of AfriNIC addresses announced to Internet: 105022720 Equivalent to 6 /8s, 66 /16s and 133 /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 6212 843 654 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4266 530 276 BBIL-AP BHARTI Airtel Ltd., IN 18403 4266 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 12919 39638 3979 AMAZON-02, US 11492 4675 310 585 CABLEONE, US 7155 4174 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 2568 213 807 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 7754 1714 145 UNI2-AS, ES 39891 4797 293 62 ALJAWWALSTC-AS, SA 20940 3899 3395 126 AKAMAI-ASN1, NL 9009 3764 324 1950 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 1520 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 11852 3241 582 UNINET, MX 10620 3523 486 970 Telmex Colombia S.A., CO 13999 2508 539 368 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 1194 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 1048 66 375 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 1623 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 863 1083 15 MOBINIL, EG 6713 561 1861 35 IAM-AS, MA 36914 542 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 12919 39638 3979 AMAZON-02, US 8151 11852 3241 582 UNINET, MX 9808 10325 8753 88 CHINAMOBILE-CN China Mobile Communication 12479 7754 1714 145 UNI2-AS, ES 7545 6212 843 654 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 4266 347 25 FPT-AS-AP FPT Telecom Company, VN 7155 4174 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 11852 11270 UNINET, MX 9808 10325 10237 CHINAMOBILE-CN China Mobile Communications Grou 12479 7754 7609 UNI2-AS, ES 7545 6212 5558 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 4735 ALJAWWALSTC-AS, SA 18403 4266 4241 FPT-AS-AP FPT Telecom Company, VN 7155 4174 4091 VIASAT-SP-BACKBONE, US 11492 4675 4090 CABLEONE, 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 /16:13930 /17:8240 /18:13642 /19:24487 /20:43624 /21:51542 /22:111655 /23:100877 /24:602226 /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 6687 7754 UNI2-AS, ES 8151 6054 11852 UNINET, MX 11492 3528 4675 CABLEONE, US 39891 3489 4797 ALJAWWALSTC-AS, SA 6327 3418 3623 SHAW, CA 7155 3121 4174 VIASAT-SP-BACKBONE, US 22773 2515 3379 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2325 12919 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) ---------------------------------------------- 1:2336 2:1503 3:596 4:10 5:4561 6:163 7:6 8:1553 9:1 11:172 12:1373 13:342 14:2511 15:351 16:279 17:361 18:916 20:463 21:4 22:188 23:7295 24:3020 25:2 27:2732 29:19 31:3208 32:37 34:82 35:204 36:2401 37:4699 38:8840 39:898 40:154 41:4200 42:1933 43:2546 44:355 45:18413 46:4971 47:288 49:1985 50:1891 51:591 52:1555 54:301 55:1074 56:9 57:250 58:2191 59:1251 60:1169 61:2817 62:2892 63:1830 64:5484 65:2177 66:4586 67:3012 68:1116 69:3963 70:1108 71:612 72:2848 74:2805 75:1655 76:612 77:2698 78:1856 79:1737 80:2188 81:2022 82:2843 83:1388 84:1812 85:3369 86:1040 87:2147 88:1280 89:4327 90:782 91:8313 92:2787 93:2888 94:4013 95:4254 96:1423 97:314 98:994 99:738 100:71 101:1303 102:3659 103:32216 104:4810 105:732 106:998 107:2595 108:1199 109:4111 110:2229 111:3331 112:2039 113:1790 114:1947 115:2119 116:2037 117:2740 118:2860 119:1941 120:1874 121:1358 122:2737 123:2168 124:1608 125:2868 126:88 128:1543 129:955 130:1267 131:1869 132:774 133:451 134:1527 135:329 136:1278 137:1106 138:2885 139:1614 140:1561 141:1479 142:1819 143:1634 144:1054 145:480 146:2150 147:2096 148:2608 149:2889 150:1242 151:2037 152:2096 153:504 154:7890 155:1615 156:3305 157:1901 158:1258 159:2423 160:3556 161:1939 162:3700 163:1927 164:1689 165:2198 166:1409 167:1882 168:4043 169:783 170:5112 171:1001 172:4451 173:3227 174:910 175:1274 176:3670 177:4706 178:3815 179:2329 180:2571 181:4040 182:3370 183:2057 184:2293 185:21468 186:5036 187:4388 188:4215 189:4174 190:9585 191:1501 192:11141 193:9411 194:7758 195:5524 196:3241 197:3765 198:6051 199:8396 200:8048 201:6269 202:10337 203:10509 204:4519 205:3627 206:4579 207:3434 208:4186 209:5147 210:4506 211:2520 212:4505 213:3735 214:1047 215:48 216:6573 217:3088 218:1326 219:380 220:2082 221:1066 222:719 223:2320 End of report