IPv4 R&E Routing Table Report 23:05 GMT Mon 27 Feb, 2023 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: 906767 Prefixes after maximum aggregation (per Origin AS): 345550 Deaggregation factor: 2.62 Unique aggregates announced (without unneeded subnets): 445935 Number of IPv4 prefixes with a valid ROA: 375840 Number of IPv4 prefixes with an invalid ROA: 1603 Number of IPv4 prefixes with no ROA: 529324 Total ASes present in the Internet Routing Table: 74001 Prefixes per ASN: 12.25 Origin-only ASes present in the Internet Routing Table: 63530 Origin ASes announcing only one prefix: 26100 Transit ASes present in the Internet Routing Table: 10471 Transit-only ASes present in the Internet Routing Table: 443 Paths with bogon ASNs present in the IPv4 Routing Table: 27 Average AS path length visible in the Internet Routing Table: 4.5 Max AS path length visible: 66 Max AS path prepend of ASN ( 37447) 64 Prefixes from unregistered ASNs in the Routing Table: 1031 Number of instances of unregistered ASNs: 1037 Number of 32-bit ASNs allocated by the RIRs: 41308 Number of 32-bit ASNs visible in the Routing Table: 34193 Prefixes from 32-bit ASNs in the Routing Table: 167265 Number of bogon 32-bit ASNs visible in the Routing Table: 19 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 548 Number of addresses announced to Internet: 3062574592 Equivalent to 182 /8s, 139 /16s and 46 /24s Percentage of available address space announced: 82.7 Percentage of allocated address space announced: 82.7 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: 305163 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 235042 Total APNIC prefixes after maximum aggregation: 68250 APNIC Deaggregation factor: 3.44 Prefixes being announced from the APNIC address blocks: 229752 Unique aggregates announced from the APNIC address blocks: 97830 APNIC Region origin ASes present in the Internet Routing Table: 13249 APNIC Prefixes per ASN: 17.34 APNIC Region origin ASes announcing only one prefix: 3855 APNIC Region transit ASes present in the Internet Routing Table: 1784 Average APNIC Region AS path length visible: 4.2 Max APNIC Region AS path length visible: 25 Number of APNIC region 32-bit ASNs visible in the Routing Table: 8586 Number of APNIC addresses announced to Internet: 773151488 Equivalent to 46 /8s, 21 /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: 266587 Total ARIN prefixes after maximum aggregation: 121413 ARIN Deaggregation factor: 2.20 Prefixes being announced from the ARIN address blocks: 268618 Unique aggregates announced from the ARIN address blocks: 130210 ARIN Region origin ASes present in the Internet Routing Table: 19004 ARIN Prefixes per ASN: 14.13 ARIN Region origin ASes announcing only one prefix: 6966 ARIN Region transit ASes present in the Internet Routing Table: 1890 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: 4728 Number of ARIN addresses announced to Internet: 1286129920 Equivalent to 76 /8s, 168 /16s and 201 /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: 257374 Total RIPE prefixes after maximum aggregation: 121170 RIPE Deaggregation factor: 2.12 Prefixes being announced from the RIPE address blocks: 253720 Unique aggregates announced from the RIPE address blocks: 156643 RIPE Region origin ASes present in the Internet Routing Table: 28223 RIPE Prefixes per ASN: 8.99 RIPE Region origin ASes announcing only one prefix: 12023 RIPE Region transit ASes present in the Internet Routing Table: 3986 Average RIPE Region AS path length visible: 4.6 Max RIPE Region AS path length visible: 38 Number of RIPE region 32-bit ASNs visible in the Routing Table: 11038 Number of RIPE addresses announced to Internet: 718430464 Equivalent to 42 /8s, 210 /16s and 97 /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: 117331 Total LACNIC prefixes after maximum aggregation: 28176 LACNIC Deaggregation factor: 4.16 Prefixes being announced from the LACNIC address blocks: 116581 Unique aggregates announced from the LACNIC address blocks: 48760 LACNIC Region origin ASes present in the Internet Routing Table: 10974 LACNIC Prefixes per ASN: 10.62 LACNIC Region origin ASes announcing only one prefix: 2662 LACNIC Region transit ASes present in the Internet Routing Table: 2273 Average LACNIC Region AS path length visible: 5.3 Max LACNIC Region AS path length visible: 50 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8776 Number of LACNIC addresses announced to Internet: 176480256 Equivalent to 10 /8s, 132 /16s and 224 /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: 29402 Total AfriNIC prefixes after maximum aggregation: 5786 AfriNIC Deaggregation factor: 5.08 Prefixes being announced from the AfriNIC address blocks: 37548 Unique aggregates announced from the AfriNIC address blocks: 12060 AfriNIC Region origin ASes present in the Internet Routing Table: 1721 AfriNIC Prefixes per ASN: 21.82 AfriNIC Region origin ASes announcing only one prefix: 594 AfriNIC Region transit ASes present in the Internet Routing Table: 334 Average AfriNIC Region AS path length visible: 5.0 Max AfriNIC Region AS path length visible: 66 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1065 Number of AfriNIC addresses announced to Internet: 108050176 Equivalent to 6 /8s, 112 /16s and 183 /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 9455 8883 48 CHINAMOBILE-CN China Mobile Communicati 7545 5803 786 691 TPG-INTERNET-AP TPG Telecom Limited, AU 7552 3675 1331 21 VIETEL-AS-AP Viettel Group, VN 7713 3548 1043 65 TELKOMNET-AS-AP PT Telekomunikasi Indon 45899 3375 1872 94 VNPT-AS-VN VNPT Corp, VN 9498 2798 499 238 BBIL-AP BHARTI Airtel Ltd., IN 24560 2357 836 443 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd 4766 2305 11250 586 KIXS-AS-KR Korea Telecom, KR 4755 2162 440 212 TATACOMM-AS TATA Communications formerl 45090 2148 1438 79 TENCENT-NET-AP Shenzhen Tencent Compute 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 8020 10750 2868 AMAZON-02, US 11492 4482 297 676 CABLEONE, US 7155 3959 270 43 VIASAT-SP-BACKBONE, US 22773 3642 3063 283 ASN-CXA-ALL-CCI-22773-RDC, US 6327 3504 1320 64 SHAW, CA 16625 3298 1651 2420 AKAMAI-AS, US 749 3032 50571 2299 DNIC-AS-00749, US 396982 2618 3586 354 GOOGLE-CLOUD-PLATFORM, US 7018 2573 24138 1580 ATT-INTERNET4, US 30036 2538 364 403 MEDIACOM-ENTERPRISE-BUSINESS, 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 7073 1706 146 UNI2-AS, ES 39891 4561 269 58 ALJAWWALSTC-AS, SA 20940 4039 3399 167 AKAMAI-ASN1, NL 8551 3903 370 37 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 12389 2897 2292 911 ROSTELECOM-AS, RU 9009 2670 253 1388 M247, RO 34984 2264 359 608 TELLCOM-AS, TR 6849 2164 339 19 UKRTELNET, UA 58224 1846 949 546 TCI, IR 13188 1607 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 11188 3346 585 Uninet S.A. de C.V., MX 10620 3467 504 872 Telmex Colombia S.A., CO 11830 2264 369 65 Instituto Costarricense de Electricidad 13999 2259 370 603 Mega Cable, S.A. de C.V., MX 28573 1343 2324 257 Claro NXT Telecomunicacoes Ltda, BR 6503 1298 339 518 Axtel, S.A.B. de C.V., MX 3816 1292 746 156 COLOMBIA TELECOMUNICACIONES S.A. ESP, C 6147 1133 370 22 Telefonica del Peru S.A.A., PE 11664 1099 180 457 Techtel LMDS Comunicaciones Interactiva 26615 1025 2498 45 TIM SA, BR 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 1542 533 30 RAYA-AS, EG 24863 1470 393 19 LINKdotNET-AS, EG 36992 1345 1517 278 ETISALAT-MISR, EG 36903 1242 550 99 MT-MPLS, MA 29571 1005 67 53 ORANGE-COTE-IVOIRE, CI 36935 856 520 42 Vodafone-, EG 6713 551 1861 34 IAM-AS, MA 15399 527 54 46 WANANCHI-, KE 24757 498 73 5 EthioNet-AS, ET 37342 493 32 1 MOVITEL, MZ 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 11188 3346 585 Uninet S.A. de C.V., MX 9808 9455 8883 48 CHINAMOBILE-CN China Mobile Communicati 16509 8020 10750 2868 AMAZON-02, US 12479 7073 1706 146 UNI2-AS, ES 7545 5803 786 691 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4561 269 58 ALJAWWALSTC-AS, SA 11492 4482 297 676 CABLEONE, US 20940 4039 3399 167 AKAMAI-ASN1, NL 7155 3959 270 43 VIASAT-SP-BACKBONE, US 8551 3903 370 37 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 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 9455 9407 CHINAMOBILE-CN China Mobile Communications Grou 12479 7073 6927 UNI2-AS, ES 16509 8020 5152 AMAZON-02, US 7545 5803 5112 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4561 4503 ALJAWWALSTC-AS, SA 7155 3959 3916 VIASAT-SP-BACKBONE, US 20940 4039 3872 AKAMAI-ASN1, NL 8551 3903 3866 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 11492 4482 3806 CABLEONE, US 7552 3675 3654 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 3507 UNALLOCATED 5.105.166.0/24 213035 AS-SERVERION Serverion B.V., 33123 UNALLOCATED 8.10.69.0/24 11168 SCC, US 16641 UNALLOCATED 8.10.194.0/24 3356 LEVEL3, US 16641 UNALLOCATED 8.10.210.0/24 3356 LEVEL3, US 16641 UNALLOCATED 8.12.250.0/24 3356 LEVEL3, US 12169 UNALLOCATED 8.15.207.0/24 32787 PROLEXIC-TECHNOLOGIES-DDOS-M 53775 UNALLOCATED 8.20.88.0/24 7029 WINDSTREAM, US 62828 UNALLOCATED 8.21.130.0/24 3356 LEVEL3, US 1618 UNALLOCATED 8.21.143.0/24 136796 CL-JP-AS CORELINK JAPAN, JP 393266 UNALLOCATED 8.23.52.0/24 46887 LIGHTOWER, US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 23.131.185.0/24 Origin: 174 COGENT-174, US 23.131.185.0/24 Transit: 2914 NTT-LTD-2914, US 23.131.186.0/24 Origin: 174 COGENT-174, US 23.131.186.0/24 Transit: 2914 NTT-LTD-2914, US 23.131.187.0/24 Origin: 174 COGENT-174, US 23.131.187.0/24 Transit: 2914 NTT-LTD-2914, US 23.131.188.0/24 Origin: 174 COGENT-174, US 23.131.188.0/24 Transit: 2914 NTT-LTD-2914, US 23.136.112.0/24 Origin: 54835 UNASSIGNED 23.136.112.0/24 Transit: 21559 OSNET, PR 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 /10:38 /11:103 /12:299 /13:577 /14:1200 /15:2073 /16:13432 /17:8195 /18:13714 /19:24812 /20:42927 /21:50948 /22:108959 /23:96763 /24:542689 /25:0 /26:1 /27:1 /28:0 /29:1 /30:6 /31:0 /32:0 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 12479 6131 7073 UNI2-AS, ES 8151 5195 11188 Uninet S.A. de C.V., MX 39891 3552 4561 ALJAWWALSTC-AS, SA 11492 3409 4482 CABLEONE, US 8551 3375 3903 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 6327 3312 3504 SHAW, CA 7155 3036 3959 VIASAT-SP-BACKBONE, US 22773 2697 3642 ASN-CXA-ALL-CCI-22773-RDC, US 30036 2195 2538 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2022 3467 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) ---------------------------------------------- 1:1653 2:1232 3:169 4:5 5:4334 6:116 7:6 8:1515 9:1 11:172 12:1584 13:390 14:2344 15:293 16:111 17:366 18:395 20:249 21:4 22:188 23:6075 24:2474 25:4 27:2525 29:19 31:2512 32:105 34:8 35:104 36:1928 37:4604 38:4208 39:863 40:152 41:4043 42:1081 43:2308 44:305 45:16354 46:4162 47:375 49:1734 50:1821 51:386 52:1588 54:392 55:866 56:8 57:89 58:1667 59:1116 60:983 61:2461 62:2631 63:1939 64:5637 65:2318 66:4902 67:3029 68:1352 69:4129 70:1272 71:662 72:2969 74:2586 75:1458 76:599 77:2393 78:1836 79:3174 80:2069 81:1733 82:1504 83:1234 84:1516 85:3010 86:755 87:1973 88:1231 89:3611 90:611 91:7670 92:2013 93:2580 94:3514 95:3957 96:1330 97:347 98:1163 99:744 100:75 101:1297 102:2644 103:30998 104:4581 105:484 106:847 107:2545 108:924 109:4390 110:2092 111:3284 112:2040 113:1489 114:1622 115:2016 116:1888 117:2557 118:2281 119:1947 120:1744 121:1046 122:2596 123:2136 124:1549 125:2357 128:1263 129:1059 130:990 131:1994 132:824 133:412 134:1907 135:296 136:861 137:929 138:2546 139:1545 140:1185 141:1450 142:1416 143:1490 144:1200 145:354 146:1888 147:1555 148:2215 149:1926 150:871 151:1148 152:1957 153:487 154:4177 155:1427 156:1664 157:1300 158:1011 159:2262 160:2552 161:1440 162:3542 163:1489 164:1592 165:1686 166:847 167:1737 168:3798 169:925 170:4565 171:883 172:3499 173:2957 174:1035 175:1157 176:3718 177:4619 178:3620 179:2215 180:2418 181:3411 182:3390 183:1935 184:2354 185:20084 186:4677 187:3983 188:4121 189:3569 190:9091 191:1458 192:10932 193:8818 194:7229 195:5120 196:3148 197:2402 198:5898 199:6090 200:7666 201:5870 202:10231 203:9997 204:4601 205:3520 206:3814 207:3383 208:4067 209:4835 210:4189 211:2385 212:4093 213:3552 214:1092 215:55 216:6582 217:2640 218:1265 219:400 220:1764 221:971 222:670 223:2107 End of report