IPv4 R&E Routing Table Report 23:05 GMT Sun 06 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: 974786 Prefixes after maximum aggregation (per Origin AS): 374794 Deaggregation factor: 2.60 Unique aggregates announced (without unneeded subnets): 476393 Number of IPv4 prefixes with a valid ROA: 536657 Number of IPv4 prefixes with an invalid ROA: 692 Number of IPv4 prefixes with no ROA: 437437 Total ASes present in the Internet Routing Table: 76625 Prefixes per ASN: 12.72 Origin-only ASes present in the Internet Routing Table: 65769 Origin ASes announcing only one prefix: 26914 Transit ASes present in the Internet Routing Table: 10856 Transit-only ASes present in the Internet Routing Table: 533 Paths with bogon ASNs present in the IPv4 Routing Table: 20 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: 1053 Number of instances of unregistered ASNs: 1057 Number of 32-bit ASNs allocated by the RIRs: 46166 Number of 32-bit ASNs visible in the Routing Table: 38023 Prefixes from 32-bit ASNs in the Routing Table: 200058 Number of bogon 32-bit ASNs visible in the Routing Table: 14 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 457 Number of addresses announced to Internet: 3107032320 Equivalent to 185 /8s, 49 /16s and 141 /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: 320300 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 255034 Total APNIC prefixes after maximum aggregation: 76451 APNIC Deaggregation factor: 3.34 Prefixes being announced from the APNIC address blocks: 246777 Unique aggregates announced from the APNIC address blocks: 102629 APNIC Region origin ASes present in the Internet Routing Table: 14526 APNIC Prefixes per ASN: 16.99 APNIC Region origin ASes announcing only one prefix: 4442 APNIC Region transit ASes present in the Internet Routing Table: 1962 Average APNIC Region AS path length visible: 4.7 Max APNIC Region AS path length visible: 55 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10057 Number of APNIC addresses announced to Internet: 748557312 Equivalent to 44 /8s, 158 /16s and 20 /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: 287607 Total ARIN prefixes after maximum aggregation: 128547 ARIN Deaggregation factor: 2.24 Prefixes being announced from the ARIN address blocks: 288628 Unique aggregates announced from the ARIN address blocks: 137273 ARIN Region origin ASes present in the Internet Routing Table: 19200 ARIN Prefixes per ASN: 15.03 ARIN Region origin ASes announcing only one prefix: 7039 ARIN Region transit ASes present in the Internet Routing Table: 1900 Average ARIN Region AS path length visible: 4.4 Max ARIN Region AS path length visible: 26 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5167 Number of ARIN addresses announced to Internet: 1349763584 Equivalent to 80 /8s, 115 /16s and 194 /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: 272638 Total RIPE prefixes after maximum aggregation: 133113 RIPE Deaggregation factor: 2.05 Prefixes being announced from the RIPE address blocks: 270602 Unique aggregates announced from the RIPE address blocks: 173635 RIPE Region origin ASes present in the Internet Routing Table: 28881 RIPE Prefixes per ASN: 9.37 RIPE Region origin ASes announcing only one prefix: 12071 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: 12362 Number of RIPE addresses announced to Internet: 731864320 Equivalent to 43 /8s, 159 /16s and 93 /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: 123209 Total LACNIC prefixes after maximum aggregation: 29323 LACNIC Deaggregation factor: 4.20 Prefixes being announced from the LACNIC address blocks: 119906 Unique aggregates announced from the LACNIC address blocks: 48837 LACNIC Region origin ASes present in the Internet Routing Table: 11215 LACNIC Prefixes per ASN: 10.69 LACNIC Region origin ASes announcing only one prefix: 2669 LACNIC Region transit ASes present in the Internet Routing Table: 2456 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: 9165 Number of LACNIC addresses announced to Internet: 171676928 Equivalent to 10 /8s, 59 /16s and 149 /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: 35245 Total AfriNIC prefixes after maximum aggregation: 6719 AfriNIC Deaggregation factor: 5.25 Prefixes being announced from the AfriNIC address blocks: 48416 Unique aggregates announced from the AfriNIC address blocks: 13630 AfriNIC Region origin ASes present in the Internet Routing Table: 1905 AfriNIC Prefixes per ASN: 25.42 AfriNIC Region origin ASes announcing only one prefix: 693 AfriNIC Region transit ASes present in the Internet Routing Table: 373 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: 104935680 Equivalent to 6 /8s, 65 /16s and 49 /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 10308 8753 89 CHINAMOBILE-CN China Mobile Communication 7545 6215 843 657 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4252 530 276 BBIL-AP BHARTI Airtel Ltd., IN 18403 4212 347 25 FPT-AS-AP FPT Telecom Company, VN 7552 3916 1332 26 VIETEL-AS-AP Viettel Group, VN 7713 3673 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3265 1869 102 VNPT-AS-VN VNPT Corp, VN 24560 2847 849 536 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 45090 2205 1439 86 TENCENT-NET-AP Shenzhen Tencent Computer 4755 2173 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 13004 39641 3947 AMAZON-02, US 11492 4686 311 585 CABLEONE, US 7155 3828 286 85 VIASAT-SP-BACKBONE, US 174 3629 8765 951 COGENT-174, US 6327 3622 1320 81 SHAW, CA 22773 3401 3036 184 ASN-CXA-ALL-CCI-22773-RDC, US 749 3255 54879 2506 DNIC-AS-00749, US 16625 2984 1250 2205 AKAMAI-AS, US 396982 2950 3649 467 GOOGLE-CLOUD-PLATFORM, US 36352 2619 216 798 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 7714 1714 145 UNI2-AS, ES 39891 4797 293 62 ALJAWWALSTC-AS, SA 20940 3898 3395 125 AKAMAI-ASN1, NL 9009 3764 325 1960 M247, RO 12389 3072 2303 895 ROSTELECOM-AS, RU 34984 2365 360 583 TELLCOM-AS, TR 212238 2083 148 1534 CDNEXT, GB 13188 1606 100 34 TRIOLAN, UA 8452 1538 1852 14 TE-AS TE-AS, EG 62240 1492 98 750 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 11921 3244 584 UNINET, MX 10620 3526 487 971 Telmex Colombia S.A., CO 13999 2512 539 364 Mega Cable, S.A. de C.V., MX 11830 1992 369 64 Instituto Costarricense de Electricidad y 28573 1356 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 22884 1050 67 378 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 11664 1049 278 33 Techtel LMDS Comunicaciones Interactivas 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 1703 599 30 RAYA-AS, EG 24863 1632 389 16 LINKdotNET-AS, EG 29571 1571 102 22 ORANGE-COTE-IVOIRE, CI 36992 1428 1518 287 ETISALAT-MISR, EG 36903 1249 554 96 MT-MPLS, MA 36935 1006 521 42 Vodafone-, EG 20011 981 185 285 INTERNET-SOLUTIONS, ZA 37069 915 1083 15 MOBINIL, EG 6713 560 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 13004 39641 3947 AMAZON-02, US 8151 11921 3244 584 UNINET, MX 9808 10308 8753 89 CHINAMOBILE-CN China Mobile Communication 12479 7714 1714 145 UNI2-AS, ES 7545 6215 843 657 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 293 62 ALJAWWALSTC-AS, SA 11492 4686 311 585 CABLEONE, US 9498 4252 530 276 BBIL-AP BHARTI Airtel Ltd., IN 18403 4212 347 25 FPT-AS-AP FPT Telecom Company, VN 7552 3916 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 11921 11337 UNINET, MX 9808 10308 10219 CHINAMOBILE-CN China Mobile Communications Grou 12479 7714 7569 UNI2-AS, ES 7545 6215 5558 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 4735 ALJAWWALSTC-AS, SA 18403 4212 4187 FPT-AS-AP FPT Telecom Company, VN 11492 4686 4101 CABLEONE, US 9498 4252 3976 BBIL-AP BHARTI Airtel Ltd., IN 7552 3916 3890 VIETEL-AS-AP Viettel Group, VN 20940 3898 3773 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 212032 UNALLOCATED 5.59.105.0/24 35168 TNS-PLUS-CORE, KZ 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 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 /12:302 /13:579 /14:1217 /15:2140 /16:13890 /17:8226 /18:13653 /19:24480 /20:43580 /21:51571 /22:111708 /23:101104 /24:602170 /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 6639 7714 UNI2-AS, ES 8151 6125 11921 UNINET, MX 11492 3531 4686 CABLEONE, US 39891 3489 4797 ALJAWWALSTC-AS, SA 6327 3417 3622 SHAW, CA 7155 2787 3828 VIASAT-SP-BACKBONE, US 22773 2536 3401 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2337 13004 AMAZON-02, US 30036 2207 2547 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2188 3526 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) ---------------------------------------------- 1:2337 2:1520 3:613 4:10 5:4599 6:162 7:6 8:1546 9:1 11:172 12:1372 13:351 14:2509 15:352 16:279 17:361 18:918 20:471 21:4 22:188 23:7308 24:2831 25:2 27:2693 29:19 31:3223 32:37 34:83 35:204 36:2398 37:4674 38:8919 39:899 40:154 41:4191 42:1890 43:2546 44:362 45:18439 46:4942 47:289 49:1959 50:1898 51:590 52:1551 54:301 55:877 56:11 57:249 58:2191 59:1242 60:1171 61:2817 62:2890 63:1835 64:5492 65:2175 66:4615 67:3059 68:1105 69:3982 70:1069 71:611 72:2824 74:2798 75:1608 76:612 77:2705 78:1874 79:1732 80:2192 81:2022 82:3111 83:1417 84:1833 85:3394 86:1041 87:2149 88:1278 89:4325 90:775 91:8307 92:2795 93:2875 94:4050 95:4294 96:1433 97:312 98:998 99:641 100:71 101:1395 102:3731 103:32159 104:4794 105:750 106:989 107:2611 108:1198 109:4104 110:2231 111:3313 112:2039 113:1808 114:1968 115:2128 116:2030 117:2737 118:2879 119:1943 120:1870 121:1360 122:2744 123:2163 124:1610 125:2854 126:88 128:1562 129:955 130:1265 131:1888 132:776 133:451 134:1515 135:331 136:1302 137:1110 138:2866 139:1608 140:1566 141:1484 142:1831 143:1647 144:1068 145:514 146:2153 147:2100 148:2642 149:2896 150:1244 151:1741 152:2096 153:504 154:7916 155:1627 156:3184 157:1892 158:1269 159:2427 160:3555 161:1887 162:3700 163:1971 164:1697 165:2202 166:1437 167:1872 168:4022 169:784 170:5070 171:1002 172:4460 173:3219 174:909 175:1290 176:3725 177:4679 178:3781 179:2294 180:2573 181:4046 182:3370 183:2028 184:2139 185:21486 186:5090 187:4409 188:4194 189:4182 190:9618 191:1461 192:11172 193:9409 194:7782 195:5503 196:3286 197:3789 198:6042 199:8419 200:8049 201:6293 202:10324 203:10518 204:4525 205:3631 206:4568 207:3437 208:4201 209:5147 210:4499 211:2539 212:4500 213:3757 214:1050 215:48 216:6592 217:3085 218:1329 219:377 220:2093 221:1070 222:712 223:2316 End of report