This is an automated weekly mailing describing the state of the IPv4 Research & Education Routing Table received by NSRC's collector from Guam's network. Daily listings are sent to ren-bgp-stats-all@lists.nsrc.org. For historical data, please see https://bgp.nsrc.org. If you have any comments please contact Philip Smith . IPv4 R&E Routing Table Report 21:25 GMT Sat 16 Aug, 2025 IPv4 BGP Table (Global) as seen at Guam. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/Guam/ Analysis Summary ---------------- BGP routing table entries examined: 1016809 Prefixes after maximum aggregation (per Origin AS): 386788 Deaggregation factor: 2.63 Unique aggregates announced (without unneeded subnets): 489698 Number of IPv4 prefixes with a valid ROA: 572969 Number of IPv4 prefixes with an invalid ROA: 19 Number of IPv4 prefixes with no ROA: 443821 Total ASes present in the Internet Routing Table: 77313 Prefixes per ASN: 13.15 Origin-only ASes present in the Internet Routing Table: 66168 Origin ASes announcing only one prefix: 26958 Transit ASes present in the Internet Routing Table: 11145 Transit-only ASes present in the Internet Routing Table: 563 Paths with bogon ASNs present in the IPv4 Routing Table: 44 Average AS path length visible in the Internet Routing Table: 5.3 Max AS path length visible: 56 Max AS path prepend of ASN (265020) 50 Prefixes from unregistered ASNs in the Routing Table: 1098 Number of instances of unregistered ASNs: 1130 Number of 32-bit ASNs allocated by the RIRs: 47181 Number of 32-bit ASNs visible in the Routing Table: 38843 Prefixes from 32-bit ASNs in the Routing Table: 210823 Number of bogon 32-bit ASNs visible in the Routing Table: 78 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 296 Number of addresses announced to Internet: 3113041158 Equivalent to 185 /8s, 141 /16s and 61 /24s Percentage of available address space announced: 84.1 Percentage of allocated address space announced: 84.1 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: 329656 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 277215 Total APNIC prefixes after maximum aggregation: 79457 APNIC Deaggregation factor: 3.49 Prefixes being announced from the APNIC address blocks: 268167 Unique aggregates announced from the APNIC address blocks: 105591 APNIC Region origin ASes present in the Internet Routing Table: 14875 APNIC Prefixes per ASN: 18.03 APNIC Region origin ASes announcing only one prefix: 4530 APNIC Region transit ASes present in the Internet Routing Table: 2007 Average APNIC Region AS path length visible: 5.3 Max APNIC Region AS path length visible: 35 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10345 Number of APNIC addresses announced to Internet: 754921026 Equivalent to 44 /8s, 255 /16s and 46 /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: 295106 Total ARIN prefixes after maximum aggregation: 132771 ARIN Deaggregation factor: 2.22 Prefixes being announced from the ARIN address blocks: 296445 Unique aggregates announced from the ARIN address blocks: 141854 ARIN Region origin ASes present in the Internet Routing Table: 19263 ARIN Prefixes per ASN: 15.39 ARIN Region origin ASes announcing only one prefix: 7040 ARIN Region transit ASes present in the Internet Routing Table: 1993 Average ARIN Region AS path length visible: 4.8 Max ARIN Region AS path length visible: 35 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5288 Number of ARIN addresses announced to Internet: 1349261313 Equivalent to 80 /8s, 108 /16s and 24 /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: 281644 Total RIPE prefixes after maximum aggregation: 137146 RIPE Deaggregation factor: 2.05 Prefixes being announced from the RIPE address blocks: 280805 Unique aggregates announced from the RIPE address blocks: 178800 RIPE Region origin ASes present in the Internet Routing Table: 29033 RIPE Prefixes per ASN: 9.67 RIPE Region origin ASes announcing only one prefix: 12062 RIPE Region transit ASes present in the Internet Routing Table: 4026 Average RIPE Region AS path length visible: 5.5 Max RIPE Region AS path length visible: 36 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12654 Number of RIPE addresses announced to Internet: 732306627 Equivalent to 43 /8s, 166 /16s and 28 /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: 126080 Total LACNIC prefixes after maximum aggregation: 29860 LACNIC Deaggregation factor: 4.22 Prefixes being announced from the LACNIC address blocks: 122283 Unique aggregates announced from the LACNIC address blocks: 49103 LACNIC Region origin ASes present in the Internet Routing Table: 11278 LACNIC Prefixes per ASN: 10.84 LACNIC Region origin ASes announcing only one prefix: 2634 LACNIC Region transit ASes present in the Internet Routing Table: 2537 Average LACNIC Region AS path length visible: 5.9 Max LACNIC Region AS path length visible: 56 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9245 Number of LACNIC addresses announced to Internet: 171184640 Equivalent to 10 /8s, 52 /16s and 18 /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: 35666 Total AfriNIC prefixes after maximum aggregation: 6834 AfriNIC Deaggregation factor: 5.22 Prefixes being announced from the AfriNIC address blocks: 48813 Unique aggregates announced from the AfriNIC address blocks: 14080 AfriNIC Region origin ASes present in the Internet Routing Table: 1947 AfriNIC Prefixes per ASN: 25.07 AfriNIC Region origin ASes announcing only one prefix: 692 AfriNIC Region transit ASes present in the Internet Routing Table: 381 Average AfriNIC Region AS path length visible: 6.2 Max AfriNIC Region AS path length visible: 38 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1311 Number of AfriNIC addresses announced to Internet: 105174272 Equivalent to 6 /8s, 68 /16s and 213 /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 13024 8921 172 CHINAMOBILE-CN China Mobile Communication 7545 6127 837 607 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4875 4192 75 ERX-CERNET-BKB China Education and Resear 18403 4600 347 26 FPT-AS-AP FPT Telecom Company, VN 9498 4464 535 311 BBIL-AP BHARTI Airtel Ltd., IN 45899 4390 1874 55 VNPT-AS-VN VNPT Corp, VN 7552 3967 1332 28 VIETEL-AS-AP Viettel Group, VN 7713 3699 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3101 832 221 CMNET-JIANGSU-AP China Mobile communicati 24560 2919 865 501 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 13807 41099 5332 AMAZON-02, US 174 5029 8769 858 COGENT-174, US 11492 4733 314 786 CABLEONE, US 7155 3873 287 89 VIASAT-SP-BACKBONE, US 6327 3646 1320 82 SHAW, CA 22773 3340 3013 162 ASN-CXA-ALL-CCI-22773-RDC, US 749 3222 54766 2473 DNIC-AS-00749, US 396982 3214 3858 435 GOOGLE-CLOUD-PLATFORM, US 4155 2935 229 1737 USDA-1, US 16625 2928 1234 2173 AKAMAI-AS, US Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 12479 7552 1711 149 UNI2-AS, ES 39891 4798 293 63 ALJAWWALSTC-AS, SA 20940 3941 3396 140 AKAMAI-ASN1, NL 9009 3860 366 2177 M247, RO 12389 3114 2315 866 ROSTELECOM-AS PJSC Rostelecom. Technical 34984 2403 361 584 TELLCOM-AS, TR 5384 2391 585 29 EMIRATES-INTERNET Emirates Internet, AE 212238 2331 165 1695 CDNEXT, GB 203020 1636 208 767 HOSTROYALE, IN 13188 1605 100 37 TRIOLAN, UA Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 12336 3272 580 UNINET, MX 10620 3482 472 1048 Telmex Colombia S.A., CO 13999 2524 511 349 Mega Cable, S.A. de C.V., MX 11830 1986 369 64 Instituto Costarricense de Electricidad y 28573 1373 2433 261 Claro NXT Telecomunicacoes Ltda, BR 3816 1351 788 208 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 11664 1211 278 33 Techtel LMDS Comunicaciones Interactivas 6147 1185 371 22 Telefonica del Peru S.A.A., PE 22884 1057 67 377 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1019 2487 55 TIM SA, BR Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 24835 1770 660 28 RAYA-AS, EG 29571 1499 94 32 ORANGE-COTE-IVOIRE, CI 36992 1421 1501 377 ETISALAT-MISR, EG 36903 1249 554 96 MT-MPLS, MA 24863 1242 389 20 LINKdotNET-AS, EG 37069 1086 1112 11 MOBINIL, EG 36935 990 522 45 Vodafone-, EG 20011 576 154 212 INTERNET-SOLUTIONS, ZA 36914 566 82 3 KENET-AS, KE 15399 540 57 59 WANANCHI-, KE Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 13807 41099 5332 AMAZON-02, US 9808 13024 8921 172 CHINAMOBILE-CN China Mobile Communication 8151 12336 3272 580 UNINET, MX 12479 7552 1711 149 UNI2-AS, ES 7545 6127 837 607 TPG-INTERNET-AP TPG Telecom Limited, AU 174 5029 8769 858 COGENT-174, US 4538 4875 4192 75 ERX-CERNET-BKB China Education and Resear 39891 4798 293 63 ALJAWWALSTC-AS, SA 11492 4733 314 786 CABLEONE, US 18403 4600 347 26 FPT-AS-AP FPT Telecom Company, VN Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 9808 13024 12852 CHINAMOBILE-CN China Mobile Communications Grou 8151 12336 11756 UNINET, MX 12479 7552 7403 UNI2-AS, ES 7545 6127 5520 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4875 4800 ERX-CERNET-BKB China Education and Research Net 39891 4798 4735 ALJAWWALSTC-AS, SA 18403 4600 4574 FPT-AS-AP FPT Telecom Company, VN 45899 4390 4335 VNPT-AS-VN VNPT Corp, VN 174 5029 4171 COGENT-174, US 9498 4464 4153 BBIL-AP BHARTI Airtel Ltd., IN Complete listing at https://bgp.nsrc.org/REN/Guam/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 32182 UNALLOCATED 8.9.96.0/23 3356 LEVEL3, US 33123 UNALLOCATED 8.10.69.0/24 174 COGENT-174, US 46639 UNALLOCATED 8.17.66.0/24 701 UUNET, US 53775 UNALLOCATED 8.20.88.0/24 7029 WINDSTREAM, US 396146 UNALLOCATED 8.21.227.0/24 3356 LEVEL3, US 393266 UNALLOCATED 8.23.52.0/24 46887 CROWNCASTLE-AS46887, US 398074 UNALLOCATED 8.28.115.0/24 32787 PROLEXIC-TECHNOLOGIES-D 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/Guam/data-badAS Prefixes from the Special Purpose Address Registry (Global) ----------------------------------------------------------- Prefix Origin AS Description 192.88.99.0/24 6939 HURRICANE, US Complete listing at https://bgp.nsrc.org/REN/Guam/data-spar Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 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 23.142.24.0/24 Origin: 62164 HEYMMAN-2, CA 23.142.24.0/24 Transit: 64236 UNREAL-SERVERS, US 23.143.236.0/24 Origin: 401925 GRAPE-AWS-1, US 23.143.236.0/24 Transit: 14618 AMAZON-AES, US 23.147.224.0/24 Origin: 27392 639-DATACENTERS, US 23.147.224.0/24 Transit: 3356 LEVEL3, US Complete listing at https://bgp.nsrc.org/REN/Guam/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 /9:14 /10:41 /11:92 /12:299 /13:582 /14:1214 /15:2172 /16:13911 /17:8446 /18:14295 /19:25386 /20:45938 /21:53220 /22:114157 /23:106443 /24:629806 /25:144 /26:111 /27:116 /28:21 /29:67 /30:7 /31:0 /32:311 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 6555 12336 UNINET, MX 12479 6512 7552 UNI2-AS, ES 11492 3552 4733 CABLEONE, US 39891 3489 4798 ALJAWWALSTC-AS, SA 6327 3442 3646 SHAW, CA 7155 2831 3873 VIASAT-SP-BACKBONE, US 22773 2495 3340 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2363 13807 AMAZON-02, US 30036 2302 2645 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2202 3482 Telmex Colombia S.A., CO Complete listing at https://bgp.nsrc.org/REN/Guam/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:2490 2:1592 3:882 4:12 5:4873 6:155 7:6 8:1578 9:3 11:172 12:1255 13:454 14:2654 15:377 16:284 17:383 18:902 20:580 21:4 22:188 23:7799 24:2707 25:2 27:2873 29:19 31:3455 32:33 33:1 34:84 35:265 36:4291 37:4610 38:10388 39:992 40:262 41:4368 42:2091 43:2817 44:385 45:18913 46:5216 47:356 49:1970 50:2054 51:591 52:1549 54:321 55:1106 56:11 57:284 58:2336 59:1407 60:1203 61:3161 62:3050 63:1790 64:5611 65:2150 66:4813 67:3103 68:1071 69:3989 70:1031 71:635 72:2845 74:2823 75:1514 76:603 77:2768 78:1894 79:1750 80:2249 81:2089 82:3272 83:1487 84:1931 85:3457 86:1219 87:2414 88:1323 89:4502 90:776 91:8464 92:2826 93:2982 94:4271 95:4458 96:1487 97:310 98:957 99:708 100:71 101:1490 102:4098 103:32745 104:5271 105:1031 106:880 107:2642 108:1270 109:4264 110:2283 111:3652 112:2479 113:1908 114:1999 115:2288 116:2162 117:2738 118:3082 119:2043 120:2267 121:1412 122:2945 123:2495 124:1791 125:2938 126:91 128:1641 129:987 130:1314 131:2084 132:784 133:450 134:1622 135:357 136:1473 137:1268 138:2875 139:1675 140:1639 141:1542 142:1914 143:1986 144:1179 145:575 146:2197 147:2103 148:2707 149:3033 150:1278 151:2372 152:2113 153:593 154:7839 155:1886 156:3108 157:1946 158:1371 159:2531 160:3625 161:1914 162:3901 163:2286 164:1890 165:2472 166:1542 167:2054 168:3937 169:781 170:5265 171:1017 172:4234 173:3395 174:903 175:1354 176:3759 177:4884 178:4019 179:2376 180:2671 181:4199 182:3627 183:2379 184:2096 185:21708 186:5286 187:4716 188:4300 189:4396 190:9559 191:1572 192:11368 193:9510 194:7952 195:5766 196:3317 197:3217 198:6124 199:8642 200:8288 201:6434 202:11012 203:10941 204:4586 205:3626 206:4574 207:3554 208:4323 209:5157 210:5061 211:2863 212:4665 213:3857 214:1035 215:51 216:6825 217:3452 218:1497 219:605 220:2144 221:1213 222:995 223:2872 End of report