IPv4 R&E Routing Table Report 23:05 GMT Mon 02 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: 881614 Prefixes after maximum aggregation (per Origin AS): 335026 Deaggregation factor: 2.63 Unique aggregates announced (without unneeded subnets): 430256 Number of IPv4 prefixes with a valid ROA: 318635 Number of IPv4 prefixes with an invalid ROA: 1104 Number of IPv4 prefixes with no ROA: 561875 Total ASes present in the Internet Routing Table: 72890 Prefixes per ASN: 12.10 Origin-only ASes present in the Internet Routing Table: 62583 Origin ASes announcing only one prefix: 25715 Transit ASes present in the Internet Routing Table: 10307 Transit-only ASes present in the Internet Routing Table: 368 Average AS path length visible in the Internet Routing Table: 4.4 Max AS path length visible: 65 Max AS path prepend of ASN (267602) 58 Prefixes from unregistered ASNs in the Routing Table: 844 Number of instances of unregistered ASNs: 849 Number of 32-bit ASNs allocated by the RIRs: 39269 Number of 32-bit ASNs visible in the Routing Table: 32553 Prefixes from 32-bit ASNs in the Routing Table: 153273 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: 483 Number of addresses announced to Internet: 3066334720 Equivalent to 182 /8s, 196 /16s and 142 /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: 296247 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 229036 Total APNIC prefixes after maximum aggregation: 66046 APNIC Deaggregation factor: 3.47 Prefixes being announced from the APNIC address blocks: 223933 Unique aggregates announced from the APNIC address blocks: 94687 APNIC Region origin ASes present in the Internet Routing Table: 12520 APNIC Prefixes per ASN: 17.89 APNIC Region origin ASes announcing only one prefix: 3552 APNIC Region transit ASes present in the Internet Routing Table: 1716 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: 7784 Number of APNIC addresses announced to Internet: 773346560 Equivalent to 46 /8s, 24 /16s and 85 /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: 260180 Total ARIN prefixes after maximum aggregation: 119520 ARIN Deaggregation factor: 2.18 Prefixes being announced from the ARIN address blocks: 260336 Unique aggregates announced from the ARIN address blocks: 124675 ARIN Region origin ASes present in the Internet Routing Table: 18950 ARIN Prefixes per ASN: 13.74 ARIN Region origin ASes announcing only one prefix: 6909 ARIN Region transit ASes present in the Internet Routing Table: 1876 Average ARIN Region AS path length visible: 4.3 Max ARIN Region AS path length visible: 36 Number of ARIN region 32-bit ASNs visible in the Routing Table: 4461 Number of ARIN addresses announced to Internet: 1295270400 Equivalent to 77 /8s, 52 /16s and 66 /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: 249057 Total RIPE prefixes after maximum aggregation: 116002 RIPE Deaggregation factor: 2.15 Prefixes being announced from the RIPE address blocks: 246421 Unique aggregates announced from the RIPE address blocks: 150374 RIPE Region origin ASes present in the Internet Routing Table: 28112 RIPE Prefixes per ASN: 8.77 RIPE Region origin ASes announcing only one prefix: 12039 RIPE Region transit ASes present in the Internet Routing Table: 4005 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: 10707 Number of RIPE addresses announced to Internet: 713744640 Equivalent to 42 /8s, 138 /16s and 225 /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: 114514 Total LACNIC prefixes after maximum aggregation: 27367 LACNIC Deaggregation factor: 4.18 Prefixes being announced from the LACNIC address blocks: 114361 Unique aggregates announced from the LACNIC address blocks: 48555 LACNIC Region origin ASes present in the Internet Routing Table: 10950 LACNIC Prefixes per ASN: 10.44 LACNIC Region origin ASes announcing only one prefix: 2650 LACNIC Region transit ASes present in the Internet Routing Table: 2213 Average LACNIC Region AS path length visible: 5.2 Max LACNIC Region AS path length visible: 65 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8646 Number of LACNIC addresses announced to Internet: 176356352 Equivalent to 10 /8s, 130 /16s and 252 /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: 27983 Total AfriNIC prefixes after maximum aggregation: 5435 AfriNIC Deaggregation factor: 5.15 Prefixes being announced from the AfriNIC address blocks: 36080 Unique aggregates announced from the AfriNIC address blocks: 11548 AfriNIC Region origin ASes present in the Internet Routing Table: 1625 AfriNIC Prefixes per ASN: 22.20 AfriNIC Region origin ASes announcing only one prefix: 565 AfriNIC Region transit ASes present in the Internet Routing Table: 324 Average AfriNIC Region AS path length visible: 5.0 Max AfriNIC Region AS path length visible: 26 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 955 Number of AfriNIC addresses announced to Internet: 107344384 Equivalent to 6 /8s, 101 /16s and 242 /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 9138 8883 41 CHINAMOBILE-CN China Mobile Communicati 7545 5910 789 696 TPG-INTERNET-AP TPG Telecom Limited, AU 7552 3592 1330 19 VIETEL-AS-AP Viettel Group, VN 7713 3498 1039 53 TELKOMNET-AS-AP PT Telekomunikasi Indon 45899 3431 1880 56 VNPT-AS-VN VNPT Corp, VN 9498 2402 499 240 BBIL-AP BHARTI Airtel Ltd., IN 4766 2252 11119 595 KIXS-AS-KR Korea Telecom, KR 45090 2134 1438 79 TENCENT-NET-AP Shenzhen Tencent Compute 4755 2116 438 200 TATACOMM-AS TATA Communications formerl 24560 2052 854 379 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 6263 10273 2710 AMAZON-02, US 11492 4475 297 691 CABLEONE, US 22773 3934 3072 356 ASN-CXA-ALL-CCI-22773-RDC, US 7155 3901 264 31 VIASAT-SP-BACKBONE, US 16625 3592 1837 2538 AKAMAI-AS, US 6327 3431 1318 61 SHAW, CA 749 2882 50780 2138 DNIC-AS-00749, US 30036 2618 373 146 MEDIACOM-ENTERPRISE-BUSINESS, US 209 2495 4960 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 6771 1730 150 UNI2-AS, ES 8551 4009 374 39 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 20940 3925 3360 192 AKAMAI-ASN1, NL 39891 3819 220 34 ALJAWWALSTC-AS, SA 12389 2897 2273 908 ROSTELECOM-AS, RU 6849 2854 355 21 UKRTELNET, UA 9009 2487 249 1292 M247, GB 34984 2237 357 632 TELLCOM-AS, TR 58224 1815 931 614 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 10622 3392 562 Uninet S.A. de C.V., MX 10620 3475 519 738 Telmex Colombia S.A., CO 11830 2433 369 63 Instituto Costarricense de Electricidad 13999 1770 297 476 Mega Cable, S.A. de C.V., MX 6503 1452 355 526 Axtel, S.A.B. de C.V., MX 28573 1386 2333 253 CLARO S.A., BR 3816 1254 667 147 COLOMBIA TELECOMUNICACIONES S.A. ESP, C 6147 1080 369 21 Telefonica del Peru S.A.A., PE 11664 1022 192 443 Techtel LMDS Comunicaciones Interactiva 11172 961 133 63 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 1654 393 21 LINKdotNET-AS, EG 24835 1473 523 33 RAYA-AS, EG 36992 1314 1519 263 ETISALAT-MISR, EG 36903 1199 545 114 MT-MPLS, MA 29571 914 65 59 ORANGE-COTE-IVOIRE, CI 36935 773 520 42 Vodafone-, EG 6713 613 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 10622 3392 562 Uninet S.A. de C.V., MX 9808 9138 8883 41 CHINAMOBILE-CN China Mobile Communicati 12479 6771 1730 150 UNI2-AS, ES 16509 6263 10273 2710 AMAZON-02, US 7545 5910 789 696 TPG-INTERNET-AP TPG Telecom Limited, AU 11492 4475 297 691 CABLEONE, US 8551 4009 374 39 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 22773 3934 3072 356 ASN-CXA-ALL-CCI-22773-RDC, US 20940 3925 3360 192 AKAMAI-ASN1, NL 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 9138 9097 CHINAMOBILE-CN China Mobile Communications Grou 12479 6771 6621 UNI2-AS, ES 7545 5910 5214 TPG-INTERNET-AP TPG Telecom Limited, AU 8551 4009 3970 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 7155 3901 3870 VIASAT-SP-BACKBONE, US 39891 3819 3785 ALJAWWALSTC-AS, SA 11492 4475 3784 CABLEONE, US 20940 3925 3733 AKAMAI-ASN1, NL 22773 3934 3578 ASN-CXA-ALL-CCI-22773-RDC, 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 398083 UNALLOCATED 5.133.124.0/24 399587 UT, US 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 32306 UNALLOCATED 8.46.80.0/24 3356 LEVEL3, US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 23.141.0.0/24 Origin: 395350 UNASSIGNED 23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS, 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 41.57.124.0/22 Origin: 37442 UNASSIGNED 41.57.124.0/22 Transit: 37204 TELONE, ZW 41.57.124.0/23 Origin: 37442 UNASSIGNED 41.57.124.0/23 Transit: 37204 TELONE, ZW 41.57.124.0/24 Origin: 37442 UNASSIGNED 41.57.124.0/24 Transit: 37204 TELONE, ZW 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 /13:590 /14:1203 /15:2099 /16:13524 /17:8238 /18:13769 /19:24847 /20:42465 /21:50832 /22:107013 /23:94434 /24:522120 /25:0 /26:1 /27:0 /28:0 /29:1 /30:4 /31:0 /32:2 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 12479 5752 6771 UNI2-AS, ES 8151 4277 10622 Uninet S.A. de C.V., MX 8551 3475 4009 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 11492 3381 4475 CABLEONE, US 6327 3244 3431 SHAW, CA 39891 3131 3819 ALJAWWALSTC-AS, SA 7155 2991 3901 VIASAT-SP-BACKBONE, US 22773 2941 3934 ASN-CXA-ALL-CCI-22773-RDC, US 6849 2710 2854 UKRTELNET, UA 30036 2274 2618 MEDIACOM-ENTERPRISE-BUSINESS, US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:1928 2:1036 3:154 4:7 5:3781 6:104 7:5 8:1526 9:1 11:172 12:1709 13:294 14:2372 15:195 16:45 17:385 18:160 20:191 21:4 22:188 23:5646 24:2283 25:6 27:2600 29:19 31:2411 32:93 34:1 35:73 36:1776 37:4417 38:2792 39:700 40:153 41:3962 42:1089 43:2175 44:293 45:15917 46:4110 47:313 49:1676 50:2159 51:100 52:1419 54:365 55:738 56:8 57:59 58:1696 59:1116 60:958 61:2249 62:2494 63:1948 64:5495 65:2319 66:4816 67:2972 68:1191 69:4146 70:1340 71:642 72:3048 74:2649 75:1389 76:591 77:2184 78:1850 79:3110 80:1977 81:1592 82:1491 83:1203 84:1349 85:2908 86:710 87:1960 88:1104 89:3275 90:520 91:7613 92:1992 93:2580 94:3494 95:3848 96:1308 97:350 98:991 99:737 100:75 101:1273 102:2067 103:29027 104:4360 105:466 106:873 107:2536 108:822 109:4207 110:2020 111:3235 112:2025 113:1474 114:1480 115:1969 116:1881 117:2515 118:2331 119:1855 120:1661 121:1018 122:2546 123:2095 124:1538 125:2053 128:1184 129:1091 130:957 131:2042 132:792 133:372 134:1911 135:289 136:879 137:851 138:2437 139:1497 140:853 141:1401 142:1288 143:1446 144:1207 145:343 146:1802 147:1462 148:2219 149:1712 150:845 151:1077 152:1846 153:458 154:3533 155:1421 156:1769 157:1229 158:1039 159:2127 160:2474 161:1260 162:3453 163:1257 164:1626 165:1612 166:699 167:1729 168:3772 169:835 170:4498 171:827 172:3138 173:3079 174:1024 175:1134 176:3515 177:4636 178:3498 179:2009 180:2317 181:2962 182:3207 183:1953 184:2385 185:19430 186:4328 187:3686 188:3848 189:3201 190:8846 191:1328 192:10970 193:8587 194:6970 195:4939 196:3001 197:2408 198:5967 199:6030 200:7398 201:5698 202:10089 203:9989 204:4552 205:3431 206:3694 207:3345 208:4034 209:4639 210:4056 211:2340 212:4006 213:3417 214:1160 215:67 216:6429 217:2662 218:1248 219:404 220:1672 221:977 222:670 223:2109 End of report