IPv4 R&E Routing Table Report 23:05 GMT Fri 21 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: 974890 Prefixes after maximum aggregation (per Origin AS): 373950 Deaggregation factor: 2.61 Unique aggregates announced (without unneeded subnets): 475712 Number of IPv4 prefixes with a valid ROA: 536064 Number of IPv4 prefixes with an invalid ROA: 1043 Number of IPv4 prefixes with no ROA: 437783 Total ASes present in the Internet Routing Table: 76580 Prefixes per ASN: 12.73 Origin-only ASes present in the Internet Routing Table: 65725 Origin ASes announcing only one prefix: 26859 Transit ASes present in the Internet Routing Table: 10855 Transit-only ASes present in the Internet Routing Table: 531 Paths with bogon ASNs present in the IPv4 Routing Table: 16 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: 1024 Number of instances of unregistered ASNs: 1033 Number of 32-bit ASNs allocated by the RIRs: 46125 Number of 32-bit ASNs visible in the Routing Table: 37967 Prefixes from 32-bit ASNs in the Routing Table: 199553 Number of bogon 32-bit ASNs visible in the Routing Table: 30 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 508 Number of addresses announced to Internet: 3108375552 Equivalent to 185 /8s, 70 /16s and 12 /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: 320135 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 255160 Total APNIC prefixes after maximum aggregation: 76204 APNIC Deaggregation factor: 3.35 Prefixes being announced from the APNIC address blocks: 246923 Unique aggregates announced from the APNIC address blocks: 102592 APNIC Region origin ASes present in the Internet Routing Table: 14513 APNIC Prefixes per ASN: 17.01 APNIC Region origin ASes announcing only one prefix: 4423 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: 10042 Number of APNIC addresses announced to Internet: 748954368 Equivalent to 44 /8s, 164 /16s and 35 /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: 288213 Total ARIN prefixes after maximum aggregation: 128327 ARIN Deaggregation factor: 2.25 Prefixes being announced from the ARIN address blocks: 288832 Unique aggregates announced from the ARIN address blocks: 136765 ARIN Region origin ASes present in the Internet Routing Table: 19187 ARIN Prefixes per ASN: 15.05 ARIN Region origin ASes announcing only one prefix: 7022 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: 5160 Number of ARIN addresses announced to Internet: 1350213632 Equivalent to 80 /8s, 122 /16s and 160 /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: 272086 Total RIPE prefixes after maximum aggregation: 132685 RIPE Deaggregation factor: 2.05 Prefixes being announced from the RIPE address blocks: 270421 Unique aggregates announced from the RIPE address blocks: 173477 RIPE Region origin ASes present in the Internet Routing Table: 28859 RIPE Prefixes per ASN: 9.37 RIPE Region origin ASes announcing only one prefix: 12057 RIPE Region transit ASes present in the Internet Routing Table: 3965 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: 12327 Number of RIPE addresses announced to Internet: 732410112 Equivalent to 43 /8s, 167 /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: 123464 Total LACNIC prefixes after maximum aggregation: 29350 LACNIC Deaggregation factor: 4.21 Prefixes being announced from the LACNIC address blocks: 120130 Unique aggregates announced from the LACNIC address blocks: 48898 LACNIC Region origin ASes present in the Internet Routing Table: 11207 LACNIC Prefixes per ASN: 10.72 LACNIC Region origin ASes announcing only one prefix: 2661 LACNIC Region transit ASes present in the Internet Routing Table: 2471 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: 9162 Number of LACNIC addresses announced to Internet: 171550976 Equivalent to 10 /8s, 57 /16s and 169 /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: 34943 Total AfriNIC prefixes after maximum aggregation: 6753 AfriNIC Deaggregation factor: 5.17 Prefixes being announced from the AfriNIC address blocks: 48076 Unique aggregates announced from the AfriNIC address blocks: 13557 AfriNIC Region origin ASes present in the Internet Routing Table: 1913 AfriNIC Prefixes per ASN: 25.13 AfriNIC Region origin ASes announcing only one prefix: 696 AfriNIC Region transit ASes present in the Internet Routing Table: 370 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: 1276 Number of AfriNIC addresses announced to Internet: 104997632 Equivalent to 6 /8s, 66 /16s and 35 /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 6211 843 654 TPG-INTERNET-AP TPG Telecom Limited, AU 18403 4333 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4266 530 276 BBIL-AP BHARTI Airtel Ltd., IN 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 2842 847 542 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 45090 2205 1439 86 TENCENT-NET-AP Shenzhen Tencent Computer 4755 2170 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 12902 39636 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 3596 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 2566 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 7752 1714 145 UNI2-AS, ES 39891 4797 293 62 ALJAWWALSTC-AS, SA 20940 3897 3395 126 AKAMAI-ASN1, NL 9009 3765 325 1951 M247, RO 12389 3000 2303 889 ROSTELECOM-AS, RU 34984 2368 360 584 TELLCOM-AS, TR 212238 2044 145 1503 CDNEXT, GB 13188 1606 100 34 TRIOLAN, UA 8452 1520 1852 14 TE-AS TE-AS, EG 62240 1488 98 746 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 11836 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 1193 371 22 Telefonica del Peru S.A.A., PE 6503 1051 359 174 Axtel, S.A.B. de C.V., MX 22884 1050 67 376 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 11664 1029 278 33 Techtel LMDS Comunicaciones Interactivas 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 859 1083 15 MOBINIL, EG 6713 561 1861 35 IAM-AS, MA 36914 537 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 12902 39636 3979 AMAZON-02, US 8151 11836 3241 582 UNINET, MX 9808 10325 8753 88 CHINAMOBILE-CN China Mobile Communication 12479 7752 1714 145 UNI2-AS, ES 7545 6211 843 654 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 293 62 ALJAWWALSTC-AS, SA 11492 4675 310 585 CABLEONE, US 18403 4333 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4266 530 276 BBIL-AP BHARTI Airtel Ltd., IN 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 11836 11254 UNINET, MX 9808 10325 10237 CHINAMOBILE-CN China Mobile Communications Grou 12479 7752 7607 UNI2-AS, ES 7545 6211 5557 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 4735 ALJAWWALSTC-AS, SA 18403 4333 4308 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 /16:13932 /17:8238 /18:13635 /19:24481 /20:43626 /21:51512 /22:111658 /23:100969 /24:602428 /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 6685 7752 UNI2-AS, ES 8151 6038 11836 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 12902 AMAZON-02, US 30036 2214 2554 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) ---------------------------------------------- 1:2346 2:1503 3:597 4:10 5:4559 6:163 7:6 8:1550 9:1 11:172 12:1374 13:338 14:2510 15:351 16:279 17:361 18:920 20:463 21:4 22:188 23:7293 24:3020 25:2 27:2732 29:19 31:3209 32:37 34:82 35:204 36:2402 37:4697 38:8846 39:898 40:155 41:4190 42:1952 43:2549 44:355 45:18405 46:4971 47:288 49:1985 50:1890 51:591 52:1557 54:301 55:1031 56:9 57:250 58:2195 59:1251 60:1169 61:2817 62:2893 63:1832 64:5487 65:2175 66:4586 67:3012 68:1116 69:3964 70:1108 71:612 72:2850 74:2806 75:1656 76:612 77:2698 78:1855 79:1734 80:2189 81:2021 82:2857 83:1389 84:1812 85:3367 86:1041 87:2148 88:1280 89:4325 90:783 91:8302 92:2786 93:2891 94:4013 95:4254 96:1423 97:314 98:994 99:737 100:71 101:1300 102:3659 103:32229 104:4812 105:732 106:998 107:2595 108:1200 109:4110 110:2217 111:3329 112:2039 113:1798 114:1945 115:2119 116:2037 117:2740 118:2870 119:1942 120:1874 121:1348 122:2738 123:2166 124:1608 125:2868 126:88 128:1544 129:954 130:1265 131:1866 132:772 133:451 134:1527 135:329 136:1277 137:1100 138:2884 139:1609 140:1558 141:1480 142:1819 143:1640 144:1057 145:480 146:2152 147:2094 148:2616 149:2889 150:1247 151:2036 152:2097 153:504 154:7898 155:1612 156:3300 157:1900 158:1264 159:2423 160:3559 161:1943 162:3702 163:1927 164:1693 165:2196 166:1412 167:1883 168:4051 169:784 170:5122 171:1001 172:4453 173:3225 174:910 175:1272 176:3674 177:4706 178:3818 179:2358 180:2568 181:4041 182:3374 183:2064 184:2293 185:21471 186:5136 187:4374 188:4214 189:4159 190:9621 191:1543 192:11144 193:9403 194:7757 195:5520 196:3241 197:3759 198:6054 199:8396 200:8021 201:6289 202:10327 203:10522 204:4519 205:3618 206:4580 207:3438 208:4184 209:5147 210:4507 211:2511 212:4505 213:3736 214:1052 215:48 216:6579 217:3089 218:1325 219:380 220:2082 221:1066 222:719 223:2318 End of report