IPv4 R&E Routing Table Report 23:05 GMT Thu 12 May, 2022 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: 881573 Prefixes after maximum aggregation (per Origin AS): 335475 Deaggregation factor: 2.63 Unique aggregates announced (without unneeded subnets): 431907 Number of IPv4 prefixes with a valid ROA: 323895 Number of IPv4 prefixes with an invalid ROA: 1097 Number of IPv4 prefixes with no ROA: 556581 Total ASes present in the Internet Routing Table: 72952 Prefixes per ASN: 12.08 Origin-only ASes present in the Internet Routing Table: 62655 Origin ASes announcing only one prefix: 25750 Transit ASes present in the Internet Routing Table: 10297 Transit-only ASes present in the Internet Routing Table: 374 Average AS path length visible in the Internet Routing Table: 4.4 Max AS path length visible: 66 Max AS path prepend of ASN (267602) 58 Prefixes from unregistered ASNs in the Routing Table: 864 Number of instances of unregistered ASNs: 869 Number of 32-bit ASNs allocated by the RIRs: 39361 Number of 32-bit ASNs visible in the Routing Table: 32606 Prefixes from 32-bit ASNs in the Routing Table: 153397 Number of bogon 32-bit ASNs visible in the Routing Table: 16 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 507 Number of addresses announced to Internet: 3066711040 Equivalent to 182 /8s, 202 /16s and 76 /24s Percentage of available address space announced: 82.8 Percentage of allocated address space announced: 82.8 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: 296363 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 228637 Total APNIC prefixes after maximum aggregation: 66039 APNIC Deaggregation factor: 3.46 Prefixes being announced from the APNIC address blocks: 223805 Unique aggregates announced from the APNIC address blocks: 94779 APNIC Region origin ASes present in the Internet Routing Table: 12554 APNIC Prefixes per ASN: 17.83 APNIC Region origin ASes announcing only one prefix: 3580 APNIC Region transit ASes present in the Internet Routing Table: 1720 Average APNIC Region AS path length visible: 4.0 Max APNIC Region AS path length visible: 33 Number of APNIC region 32-bit ASNs visible in the Routing Table: 7823 Number of APNIC addresses announced to Internet: 773348096 Equivalent to 46 /8s, 24 /16s and 91 /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, 131072-151865 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: 260396 Total ARIN prefixes after maximum aggregation: 119780 ARIN Deaggregation factor: 2.17 Prefixes being announced from the ARIN address blocks: 260331 Unique aggregates announced from the ARIN address blocks: 125902 ARIN Region origin ASes present in the Internet Routing Table: 18954 ARIN Prefixes per ASN: 13.73 ARIN Region origin ASes announcing only one prefix: 6910 ARIN Region transit ASes present in the Internet Routing Table: 1872 Average ARIN Region AS path length visible: 4.3 Max ARIN Region AS path length visible: 35 Number of ARIN region 32-bit ASNs visible in the Routing Table: 4466 Number of ARIN addresses announced to Internet: 1295567360 Equivalent to 77 /8s, 56 /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, 393216-401308 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, 47/8, 48/8, 50/8, 52/8, 53/8, 54/8, 55/8, 56/8, 57/8, 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: 249459 Total RIPE prefixes after maximum aggregation: 116176 RIPE Deaggregation factor: 2.15 Prefixes being announced from the RIPE address blocks: 246782 Unique aggregates announced from the RIPE address blocks: 150567 RIPE Region origin ASes present in the Internet Routing Table: 28123 RIPE Prefixes per ASN: 8.78 RIPE Region origin ASes announcing only one prefix: 12026 RIPE Region transit ASes present in the Internet Routing Table: 3997 Average RIPE Region AS path length visible: 4.5 Max RIPE Region AS path length visible: 34 Number of RIPE region 32-bit ASNs visible in the Routing Table: 10704 Number of RIPE addresses announced to Internet: 713801216 Equivalent to 42 /8s, 139 /16s and 190 /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 196608-213403 RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8, 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: 114399 Total LACNIC prefixes after maximum aggregation: 27363 LACNIC Deaggregation factor: 4.18 Prefixes being announced from the LACNIC address blocks: 114232 Unique aggregates announced from the LACNIC address blocks: 48579 LACNIC Region origin ASes present in the Internet Routing Table: 10957 LACNIC Prefixes per ASN: 10.43 LACNIC Region origin ASes announcing only one prefix: 2674 LACNIC Region transit ASes present in the Internet Routing Table: 2205 Average LACNIC Region AS path length visible: 5.2 Max LACNIC Region AS path length visible: 66 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8655 Number of LACNIC addresses announced to Internet: 176336384 Equivalent to 10 /8s, 130 /16s and 174 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-273820 + 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: 27818 Total AfriNIC prefixes after maximum aggregation: 5449 AfriNIC Deaggregation factor: 5.11 Prefixes being announced from the AfriNIC address blocks: 35916 Unique aggregates announced from the AfriNIC address blocks: 11646 AfriNIC Region origin ASes present in the Internet Routing Table: 1628 AfriNIC Prefixes per ASN: 22.06 AfriNIC Region origin ASes announcing only one prefix: 560 AfriNIC Region transit ASes present in the Internet Routing Table: 330 Average AfriNIC Region AS path length visible: 4.9 Max AfriNIC Region AS path length visible: 33 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 958 Number of AfriNIC addresses announced to Internet: 107367168 Equivalent to 6 /8s, 102 /16s and 75 /24s AfriNIC AS Blocks 36864-37887, 327680-329727 & ERX transfers AfriNIC Address Blocks 41/8, 45/8, 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 9135 8883 41 CHINAMOBILE-CN China Mobile Communicati 7545 5922 789 693 TPG-INTERNET-AP TPG Telecom Limited, AU 7552 3592 1330 19 VIETEL-AS-AP Viettel Group, VN 7713 3495 1039 53 TELKOMNET-AS-AP PT Telekomunikasi Indon 45899 3430 1880 56 VNPT-AS-VN VNPT Corp, VN 9498 2404 499 240 BBIL-AP BHARTI Airtel Ltd., IN 4766 2251 11119 595 KIXS-AS-KR Korea Telecom, KR 45090 2134 1438 79 TENCENT-NET-AP Shenzhen Tencent Compute 4755 2119 438 203 TATACOMM-AS TATA Communications formerl 24560 2044 853 380 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd 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 6378 10349 2752 AMAZON-02, US 11492 4494 298 692 CABLEONE, US 22773 3914 3062 347 ASN-CXA-ALL-CCI-22773-RDC, US 7155 3901 264 31 VIASAT-SP-BACKBONE, US 16625 3607 1840 2547 AKAMAI-AS, US 6327 3437 1318 61 SHAW, CA 749 2882 50780 2138 DNIC-AS-00749, US 30036 2620 373 147 MEDIACOM-ENTERPRISE-BUSINESS, US 209 2479 4961 421 CENTURYLINK-US-LEGACY-QWEST, US 20115 2249 3051 492 CHARTER-20115, 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 6797 1730 150 UNI2-AS, ES 8551 4010 374 39 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 20940 3941 3360 192 AKAMAI-ASN1, NL 39891 3751 216 30 ALJAWWALSTC-AS, SA 6849 2907 355 21 UKRTELNET, UA 12389 2898 2273 908 ROSTELECOM-AS, RU 9009 2478 247 1289 M247, GB 34984 2238 357 632 TELLCOM-AS, TR 58224 1812 925 615 TCI, IR 13188 1610 100 27 TRIOLAN, UA 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 10592 3397 562 Uninet S.A. de C.V., MX 10620 3477 519 738 Telmex Colombia S.A., CO 11830 2433 369 63 Instituto Costarricense de Electricidad 13999 1798 299 473 Mega Cable, S.A. de C.V., MX 6503 1455 355 528 Axtel, S.A.B. de C.V., MX 28573 1390 2333 253 CLARO S.A., BR 3816 1255 669 148 COLOMBIA TELECOMUNICACIONES S.A. ESP, C 6147 1079 369 21 Telefonica del Peru S.A.A., PE 11664 1017 191 441 Techtel LMDS Comunicaciones Interactiva 11172 957 133 61 Alestra, S. de R.L. 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 24863 1652 393 21 LINKdotNET-AS, EG 24835 1442 501 30 RAYA-AS, EG 36992 1313 1519 263 ETISALAT-MISR, EG 36903 1199 545 114 MT-MPLS, MA 29571 947 65 59 ORANGE-COTE-IVOIRE, CI 36935 619 520 42 Vodafone-, EG 6713 611 1863 34 IAM-AS, MA 15399 512 51 33 WANANCHI-, KE 37342 467 32 1 MOVITEL, MZ 23889 420 232 16 MauritiusTelecom, MU 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 8151 10592 3397 562 Uninet S.A. de C.V., MX 9808 9135 8883 41 CHINAMOBILE-CN China Mobile Communicati 12479 6797 1730 150 UNI2-AS, ES 16509 6378 10349 2752 AMAZON-02, US 7545 5922 789 693 TPG-INTERNET-AP TPG Telecom Limited, AU 11492 4494 298 692 CABLEONE, US 8551 4010 374 39 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 20940 3941 3360 192 AKAMAI-ASN1, NL 22773 3914 3062 347 ASN-CXA-ALL-CCI-22773-RDC, US 7155 3901 264 31 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 9808 9135 9094 CHINAMOBILE-CN China Mobile Communications Grou 12479 6797 6647 UNI2-AS, ES 7545 5922 5229 TPG-INTERNET-AP TPG Telecom Limited, AU 8551 4010 3971 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 7155 3901 3870 VIASAT-SP-BACKBONE, US 11492 4494 3802 CABLEONE, US 20940 3941 3749 AKAMAI-ASN1, NL 39891 3751 3721 ALJAWWALSTC-AS, SA 16509 6378 3626 AMAZON-02, US 7552 3592 3573 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 33123 UNALLOCATED 8.10.69.0/24 11168 SCC, US 62828 UNALLOCATED 8.21.130.0/24 3356 LEVEL3, US 393266 UNALLOCATED 8.23.52.0/24 46887 LIGHTOWER, US 18604 UNALLOCATED 8.25.204.0/24 3356 LEVEL3, US 394936 UNALLOCATED 8.33.224.0/24 22442 HOU-PHONOSCOPE, US 54338 UNALLOCATED 8.33.241.0/24 6461 ZAYO-6461, US 395438 UNALLOCATED 8.42.206.0/24 3356 LEVEL3, US 395056 UNALLOCATED 8.45.133.0/24 3356 LEVEL3, US 17033 UNALLOCATED 8.48.225.0/24 3356 LEVEL3, US 17033 UNALLOCATED 12.3.33.0/24 7018 ATT-INTERNET4, US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 23.141.0.0/24 Origin: 395350 UNASSIGNED 23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS, US 23.166.208.0/24 Origin: 398906 LUFTCLOUD-ASN-01, US 23.166.208.0/24 Transit: 132132 REPUBLICTELECOM-SG MyRepublic Ltd., SG 23.185.16.0/24 Origin: 399244 BLOOM-HOST, US 23.185.16.0/24 Transit: 13335 CLOUDFLARENET, US 23.185.17.0/24 Origin: 399244 BLOOM-HOST, US 23.185.17.0/24 Transit: 13335 CLOUDFLARENET, US 27.100.7.0/24 Origin: 56096 UNASSIGNED 27.100.7.0/24 Transit: 45455 TH-2S1N-AP Two S One N Co Ltd, Internet 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 /9:13 /10:40 /11:100 /12:303 /13:589 /14:1204 /15:2097 /16:13516 /17:8242 /18:13774 /19:24844 /20:42492 /21:50759 /22:106980 /23:94421 /24:522177 /25:0 /26:1 /27:0 /28:0 /29:1 /30:4 /31:0 /32:0 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 12479 5776 6797 UNI2-AS, ES 8151 4308 10592 Uninet S.A. de C.V., MX 8551 3476 4010 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 11492 3400 4494 CABLEONE, US 6327 3250 3437 SHAW, CA 39891 3067 3751 ALJAWWALSTC-AS, SA 7155 2991 3901 VIASAT-SP-BACKBONE, US 22773 2925 3914 ASN-CXA-ALL-CCI-22773-RDC, US 6849 2758 2907 UKRTELNET, UA 30036 2276 2620 MEDIACOM-ENTERPRISE-BUSINESS, US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:1923 2:1033 3:154 4:6 5:3780 6:103 7:5 8:1525 9:1 11:172 12:1711 13:290 14:2371 15:200 16:45 17:385 18:160 20:209 21:4 22:188 23:5646 24:2279 25:6 27:2600 29:19 31:2413 32:93 34:1 35:76 36:1781 37:4369 38:2812 39:692 40:153 41:3976 42:1092 43:2167 44:291 45:15966 46:4128 47:293 49:1684 50:2107 51:100 52:1425 54:368 55:736 56:8 57:60 58:1699 59:1106 60:959 61:2247 62:2510 63:1943 64:5478 65:2316 66:4832 67:2970 68:1194 69:4140 70:1327 71:673 72:3038 74:2640 75:1390 76:584 77:2174 78:1843 79:3113 80:1992 81:1589 82:1495 83:1206 84:1352 85:2916 86:712 87:1957 88:1104 89:3279 90:520 91:7615 92:2011 93:2578 94:3480 95:3859 96:1305 97:349 98:994 99:736 100:75 101:1269 102:2069 103:28919 104:4372 105:462 106:871 107:2506 108:824 109:4234 110:2010 111:3240 112:2027 113:1477 114:1478 115:1981 116:1881 117:2514 118:2337 119:1858 120:1664 121:1014 122:2541 123:2090 124:1537 125:2057 128:1180 129:1095 130:957 131:2045 132:788 133:372 134:1894 135:289 136:880 137:848 138:2423 139:1502 140:845 141:1400 142:1280 143:1444 144:1210 145:343 146:1796 147:1479 148:2221 149:1718 150:845 151:1083 152:1847 153:459 154:3498 155:1425 156:1760 157:1232 158:1043 159:2177 160:2508 161:1276 162:3459 163:1260 164:1631 165:1612 166:705 167:1724 168:3751 169:832 170:4478 171:828 172:3145 173:3102 174:1023 175:1132 176:3504 177:4627 178:3506 179:2015 180:2317 181:2957 182:3193 183:1951 184:2387 185:19485 186:4324 187:3709 188:3850 189:3213 190:8837 191:1316 192:10996 193:8608 194:7000 195:4956 196:2990 197:2428 198:5954 199:6029 200:7407 201:5699 202:10089 203:9988 204:4539 205:3423 206:3683 207:3335 208:4025 209:4638 210:4055 211:2346 212:4006 213:3421 214:1153 215:67 216:6429 217:2662 218:1246 219:405 220:1670 221:978 222:670 223:2109 End of report