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 07 Jun, 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: 1006764 Prefixes after maximum aggregation (per Origin AS): 381185 Deaggregation factor: 2.64 Unique aggregates announced (without unneeded subnets): 482539 Number of IPv4 prefixes with a valid ROA: 558687 Number of IPv4 prefixes with an invalid ROA: 18 Number of IPv4 prefixes with no ROA: 448059 Total ASes present in the Internet Routing Table: 77006 Prefixes per ASN: 13.07 Origin-only ASes present in the Internet Routing Table: 65917 Origin ASes announcing only one prefix: 26904 Transit ASes present in the Internet Routing Table: 11089 Transit-only ASes present in the Internet Routing Table: 566 Paths with bogon ASNs present in the IPv4 Routing Table: 60 Average AS path length visible in the Internet Routing Table: 5.3 Max AS path length visible: 57 Max AS path prepend of ASN (265020) 50 Prefixes from unregistered ASNs in the Routing Table: 976 Number of instances of unregistered ASNs: 1008 Number of 32-bit ASNs allocated by the RIRs: 46622 Number of 32-bit ASNs visible in the Routing Table: 38376 Prefixes from 32-bit ASNs in the Routing Table: 206786 Number of bogon 32-bit ASNs visible in the Routing Table: 80 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 300 Number of addresses announced to Internet: 3115930688 Equivalent to 185 /8s, 185 /16s and 84 /24s Percentage of available address space announced: 84.2 Percentage of allocated address space announced: 84.2 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: 327701 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 270796 Total APNIC prefixes after maximum aggregation: 78099 APNIC Deaggregation factor: 3.47 Prefixes being announced from the APNIC address blocks: 262196 Unique aggregates announced from the APNIC address blocks: 104671 APNIC Region origin ASes present in the Internet Routing Table: 14716 APNIC Prefixes per ASN: 17.82 APNIC Region origin ASes announcing only one prefix: 4471 APNIC Region transit ASes present in the Internet Routing Table: 1989 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: 10172 Number of APNIC addresses announced to Internet: 754304320 Equivalent to 44 /8s, 245 /16s and 197 /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: 293389 Total ARIN prefixes after maximum aggregation: 131126 ARIN Deaggregation factor: 2.24 Prefixes being announced from the ARIN address blocks: 294995 Unique aggregates announced from the ARIN address blocks: 139734 ARIN Region origin ASes present in the Internet Routing Table: 19249 ARIN Prefixes per ASN: 15.33 ARIN Region origin ASes announcing only one prefix: 7042 ARIN Region transit ASes present in the Internet Routing Table: 1995 Average ARIN Region AS path length visible: 4.8 Max ARIN Region AS path length visible: 34 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5226 Number of ARIN addresses announced to Internet: 1353290240 Equivalent to 80 /8s, 169 /16s and 146 /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: 278944 Total RIPE prefixes after maximum aggregation: 134763 RIPE Deaggregation factor: 2.07 Prefixes being announced from the RIPE address blocks: 277485 Unique aggregates announced from the RIPE address blocks: 175314 RIPE Region origin ASes present in the Internet Routing Table: 28947 RIPE Prefixes per ASN: 9.59 RIPE Region origin ASes announcing only one prefix: 12052 RIPE Region transit ASes present in the Internet Routing Table: 4010 Average RIPE Region AS path length visible: 5.5 Max RIPE Region AS path length visible: 29 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12484 Number of RIPE addresses announced to Internet: 731353280 Equivalent to 43 /8s, 151 /16s and 144 /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: 126171 Total LACNIC prefixes after maximum aggregation: 29853 LACNIC Deaggregation factor: 4.23 Prefixes being announced from the LACNIC address blocks: 122433 Unique aggregates announced from the LACNIC address blocks: 48991 LACNIC Region origin ASes present in the Internet Routing Table: 11262 LACNIC Prefixes per ASN: 10.87 LACNIC Region origin ASes announcing only one prefix: 2662 LACNIC Region transit ASes present in the Internet Routing Table: 2516 Average LACNIC Region AS path length visible: 5.9 Max LACNIC Region AS path length visible: 57 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9212 Number of LACNIC addresses announced to Internet: 171919936 Equivalent to 10 /8s, 63 /16s and 74 /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: 36488 Total AfriNIC prefixes after maximum aggregation: 6737 AfriNIC Deaggregation factor: 5.42 Prefixes being announced from the AfriNIC address blocks: 49355 Unique aggregates announced from the AfriNIC address blocks: 13556 AfriNIC Region origin ASes present in the Internet Routing Table: 1915 AfriNIC Prefixes per ASN: 25.77 AfriNIC Region origin ASes announcing only one prefix: 677 AfriNIC Region transit ASes present in the Internet Routing Table: 380 Average AfriNIC Region AS path length visible: 6.1 Max AfriNIC Region AS path length visible: 40 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1282 Number of AfriNIC addresses announced to Internet: 104908032 Equivalent to 6 /8s, 64 /16s and 197 /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 11214 8916 154 CHINAMOBILE-CN China Mobile Communication 7545 6168 843 640 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4853 4192 75 ERX-CERNET-BKB China Education and Resear 18403 4454 347 25 FPT-AS-AP FPT Telecom Company, VN 45899 4366 1874 56 VNPT-AS-VN VNPT Corp, VN 9498 4303 534 304 BBIL-AP BHARTI Airtel Ltd., IN 7552 3951 1332 27 VIETEL-AS-AP Viettel Group, VN 7713 3697 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 24560 2881 854 529 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 56046 2243 831 217 CMNET-JIANGSU-AP China Mobile communicati 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 13651 40956 5215 AMAZON-02, US 174 5205 8746 889 COGENT-174, US 11492 4760 316 593 CABLEONE, US 7155 3877 287 89 VIASAT-SP-BACKBONE, US 6327 3632 1320 81 SHAW, CA 22773 3349 3032 168 ASN-CXA-ALL-CCI-22773-RDC, US 749 3229 54783 2480 DNIC-AS-00749, US 396982 3181 3853 423 GOOGLE-CLOUD-PLATFORM, US 16625 3024 1261 2228 AKAMAI-AS, US 36352 2815 230 855 AS-COLOCROSSING, 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 7684 1714 148 UNI2-AS, ES 39891 4798 293 63 ALJAWWALSTC-AS, SA 20940 3960 3395 139 AKAMAI-ASN1, NL 9009 3879 355 2086 M247, RO 12389 3112 2306 888 ROSTELECOM-AS PJSC Rostelecom. Technical 5384 2415 585 29 EMIRATES-INTERNET Emirates Internet, AE 34984 2391 360 580 TELLCOM-AS, TR 212238 2248 163 1639 CDNEXT, GB 8452 1612 1852 14 TE-AS TE-AS, EG 13188 1606 100 34 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 12183 3255 582 UNINET, MX 10620 3499 480 1017 Telmex Colombia S.A., CO 13999 2548 540 363 Mega Cable, S.A. de C.V., MX 11830 1991 369 64 Instituto Costarricense de Electricidad y 28573 1371 2436 266 Claro NXT Telecomunicacoes Ltda, BR 3816 1340 787 207 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1199 371 22 Telefonica del Peru S.A.A., PE 22884 1064 68 376 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 6503 1038 373 162 Axtel, S.A.B. de C.V., MX 26615 1035 2503 52 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 1780 644 27 RAYA-AS, EG 24863 1634 389 17 LINKdotNET-AS, EG 29571 1614 102 33 ORANGE-COTE-IVOIRE, CI 36992 1431 1519 280 ETISALAT-MISR, EG 36903 1247 553 104 MT-MPLS, MA 37069 1107 1100 18 MOBINIL, EG 36935 1050 520 44 Vodafone-, EG 20011 980 185 285 INTERNET-SOLUTIONS, ZA 36914 558 82 3 KENET-AS, KE 15399 539 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 13651 40956 5215 AMAZON-02, US 8151 12183 3255 582 UNINET, MX 9808 11214 8916 154 CHINAMOBILE-CN China Mobile Communication 12479 7684 1714 148 UNI2-AS, ES 7545 6168 843 640 TPG-INTERNET-AP TPG Telecom Limited, AU 174 5205 8746 889 COGENT-174, US 4538 4853 4192 75 ERX-CERNET-BKB China Education and Resear 39891 4798 293 63 ALJAWWALSTC-AS, SA 11492 4760 316 593 CABLEONE, US 18403 4454 347 25 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 8151 12183 11601 UNINET, MX 9808 11214 11060 CHINAMOBILE-CN China Mobile Communications Grou 12479 7684 7536 UNI2-AS, ES 7545 6168 5528 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4853 4778 ERX-CERNET-BKB China Education and Research Net 39891 4798 4735 ALJAWWALSTC-AS, SA 18403 4454 4429 FPT-AS-AP FPT Telecom Company, VN 174 5205 4316 COGENT-174, US 45899 4366 4310 VNPT-AS-VN VNPT Corp, VN 11492 4760 4167 CABLEONE, US 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 22542 UNALLOCATED 8.7.205.0/24 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 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 46639 UNALLOCATED 8.38.73.0/24 3356 LEVEL3, US 395195 UNALLOCATED 8.38.115.0/24 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 23.147.240.0/24 Origin: 32302 RESERVED, ZZ 23.147.240.0/24 Transit: 32787 PROLEXIC-TECHNOLOGIES-DDOS-MITIGATION-NE 23.155.208.0/24 Origin: 396169 AS-GHCIL-01, US 23.155.208.0/24 Transit: 35985 ONERINGNET-ATL-1, US 23.159.56.0/24 Origin: 174 COGENT-174, US 23.159.56.0/24 Transit: 2914 NTT-DATA-2914, 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 /12:300 /13:585 /14:1226 /15:2183 /16:14012 /17:8505 /18:14490 /19:25413 /20:45898 /21:53125 /22:113989 /23:105834 /24:620302 /25:126 /26:112 /27:100 /28:18 /29:75 /30:10 /31:0 /32:298 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 12479 6603 7684 UNI2-AS, ES 8151 6384 12183 UNINET, MX 11492 3557 4760 CABLEONE, US 39891 3489 4798 ALJAWWALSTC-AS, SA 6327 3427 3632 SHAW, CA 7155 2835 3877 VIASAT-SP-BACKBONE, US 22773 2498 3349 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2384 13651 AMAZON-02, US 30036 2243 2584 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2186 3499 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) ---------------------------------------------- 1:2437 2:1614 3:807 4:11 5:4796 6:162 7:6 8:1607 9:1 11:172 12:1356 13:440 14:2591 15:361 16:285 17:380 18:920 20:559 21:4 22:188 23:7584 24:2807 25:2 27:2837 29:19 31:3358 32:40 33:1 34:84 35:258 36:3078 37:4636 38:10341 39:919 40:173 41:4307 42:1993 43:2720 44:381 45:18778 46:5193 47:338 49:1974 50:1884 51:591 52:1571 54:321 55:1084 56:11 57:267 58:2321 59:1323 60:1199 61:3158 62:2969 63:1808 64:5476 65:2185 66:4661 67:3064 68:1125 69:3946 70:1079 71:636 72:2840 74:2807 75:1516 76:616 77:2716 78:1892 79:1724 80:2251 81:2061 82:3136 83:1482 84:1881 85:3448 86:1175 87:2410 88:1301 89:4438 90:772 91:8421 92:2775 93:2931 94:4183 95:4364 96:1462 97:311 98:979 99:697 100:73 101:1441 102:4024 103:32692 104:5091 105:1120 106:1040 107:2656 108:1254 109:4152 110:2285 111:3346 112:2157 113:1862 114:1999 115:2198 116:2116 117:2575 118:2926 119:2023 120:2043 121:1458 122:2912 123:2611 124:1727 125:2918 126:93 128:1660 129:981 130:1327 131:2023 132:782 133:449 134:1551 135:335 136:1354 137:1267 138:2937 139:1670 140:1621 141:1502 142:1901 143:1826 144:1135 145:527 146:2205 147:2119 148:2719 149:2975 150:1267 151:1951 152:2089 153:588 154:7744 155:1741 156:3036 157:1906 158:1323 159:2494 160:3618 161:1867 162:3821 163:2202 164:1877 165:2233 166:1472 167:1949 168:4071 169:797 170:5185 171:1029 172:4432 173:3321 174:916 175:1331 176:3723 177:4849 178:3726 179:2361 180:2717 181:4105 182:3478 183:2169 184:2098 185:21684 186:5238 187:4578 188:4260 189:4367 190:9632 191:1515 192:11320 193:9498 194:7954 195:5686 196:3278 197:3659 198:6114 199:8542 200:8278 201:6410 202:10833 203:10935 204:4551 205:3621 206:4503 207:3502 208:4273 209:5155 210:4936 211:2754 212:4633 213:3751 214:1028 215:48 216:6798 217:3322 218:1426 219:585 220:2096 221:1127 222:976 223:2506 End of report