[REN-BGP-stats-all] IPv4 R&E Routing Table Report - KREONet2 (R&E) view
REN Routing Table Report
cscora at bgp.nsrc.org
Sat Apr 26 20:17:03 UTC 2025
IPv4 R&E Routing Table Report 20:15 GMT Sat 26 Apr, 2025
IPv4 BGP Table (R&E) as seen at KREONet2.
Report Website: https://bgp.nsrc.org/REN
Detailed Analysis: https://bgp.nsrc.org/REN/KREONet2/
Analysis Summary
----------------
BGP routing table entries examined: 261220
Prefixes after maximum aggregation (per Origin AS): 114467
Deaggregation factor: 2.28
Unique aggregates announced (without unneeded subnets): 135423
Number of IPv4 prefixes with a valid ROA: 116276
Number of IPv4 prefixes with an invalid ROA: 18
Number of IPv4 prefixes with no ROA: 144926
Total ASes present in the Internet Routing Table: 19740
Prefixes per ASN: 13.23
Origin-only ASes present in the Internet Routing Table: 17063
Origin ASes announcing only one prefix: 7772
Transit ASes present in the Internet Routing Table: 2677
Transit-only ASes present in the Internet Routing Table: 712
Paths with bogon ASNs present in the IPv4 Routing Table: 6
Average AS path length visible in the Internet Routing Table: 5.8
Max AS path length visible: 38
Max AS path prepend of ASN ( 37447) 34
Prefixes from unregistered ASNs in the Routing Table: 315
Number of instances of unregistered ASNs: 316
Number of 32-bit ASNs allocated by the RIRs: 46285
Number of 32-bit ASNs visible in the Routing Table: 7429
Prefixes from 32-bit ASNs in the Routing Table: 27516
Number of bogon 32-bit ASNs visible in the Routing Table: 4
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 131
Number of addresses announced to Internet: 1561464797
Equivalent to 93 /8s, 18 /16s and 15 /24s
Percentage of available address space announced: 42.2
Percentage of allocated address space announced: 42.2
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: 82704
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 31707
Total APNIC prefixes after maximum aggregation: 7317
APNIC Deaggregation factor: 4.33
Prefixes being announced from the APNIC address blocks: 30400
Unique aggregates announced from the APNIC address blocks: 7773
APNIC Region origin ASes present in the Internet Routing Table: 1203
APNIC Prefixes per ASN: 25.27
APNIC Region origin ASes announcing only one prefix: 482
APNIC Region transit ASes present in the Internet Routing Table: 209
Average APNIC Region AS path length visible: 7.3
Max APNIC Region AS path length visible: 19
Number of APNIC region 32-bit ASNs visible in the Routing Table: 553
Number of APNIC addresses announced to Internet: 175698540
Equivalent to 10 /8s, 120 /16s and 242 /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: 125535
Total ARIN prefixes after maximum aggregation: 64697
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 122823
Unique aggregates announced from the ARIN address blocks: 66095
ARIN Region origin ASes present in the Internet Routing Table: 9344
ARIN Prefixes per ASN: 13.14
ARIN Region origin ASes announcing only one prefix: 3898
ARIN Region transit ASes present in the Internet Routing Table: 867
Average ARIN Region AS path length visible: 5.3
Max ARIN Region AS path length visible: 26
Number of ARIN region 32-bit ASNs visible in the Routing Table: 2175
Number of ARIN addresses announced to Internet: 965028321
Equivalent to 57 /8s, 133 /16s and 41 /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: 49224
Total RIPE prefixes after maximum aggregation: 26625
RIPE Deaggregation factor: 1.85
Prefixes being announced from the RIPE address blocks: 50706
Unique aggregates announced from the RIPE address blocks: 37038
RIPE Region origin ASes present in the Internet Routing Table: 4615
RIPE Prefixes per ASN: 10.99
RIPE Region origin ASes announcing only one prefix: 1942
RIPE Region transit ASes present in the Internet Routing Table: 690
Average RIPE Region AS path length visible: 5.6
Max RIPE Region AS path length visible: 28
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1895
Number of RIPE addresses announced to Internet: 281452368
Equivalent to 16 /8s, 198 /16s and 159 /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: 43880
Total LACNIC prefixes after maximum aggregation: 13364
LACNIC Deaggregation factor: 3.28
Prefixes being announced from the LACNIC address blocks: 43007
Unique aggregates announced from the LACNIC address blocks: 19948
LACNIC Region origin ASes present in the Internet Routing Table: 3469
LACNIC Prefixes per ASN: 12.40
LACNIC Region origin ASes announcing only one prefix: 1339
LACNIC Region transit ASes present in the Internet Routing Table: 703
Average LACNIC Region AS path length visible: 5.9
Max LACNIC Region AS path length visible: 23
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 2658
Number of LACNIC addresses announced to Internet: 96450624
Equivalent to 5 /8s, 191 /16s and 184 /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: 10559
Total AfriNIC prefixes after maximum aggregation: 2249
AfriNIC Deaggregation factor: 4.69
Prefixes being announced from the AfriNIC address blocks: 14153
Unique aggregates announced from the AfriNIC address blocks: 4456
AfriNIC Region origin ASes present in the Internet Routing Table: 271
AfriNIC Prefixes per ASN: 52.23
AfriNIC Region origin ASes announcing only one prefix: 111
AfriNIC Region transit ASes present in the Internet Routing Table: 74
Average AfriNIC Region AS path length visible: 6.5
Max AfriNIC Region AS path length visible: 38
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 148
Number of AfriNIC addresses announced to Internet: 42785024
Equivalent to 2 /8s, 140 /16s and 217 /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 10182 8754 92 CHINAMOBILE-CN China Mobile Communication
56046 1622 811 186 CMNET-JIANGSU-AP China Mobile communicati
56041 1569 714 78 CMNET-ZHEJIANG-AP China Mobile communicat
56047 1484 192 53 CMNET-HUNAN-AP China Mobile communication
24547 852 177 50 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic
24444 771 500 72 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co
2907 639 2170 465 SINET-AS Research Organization of Informa
17561 573 37 261 LCS-AS-AP LARUS Limited, HK
45102 549 851 141 ALIBABA-CN-NET Alibaba US Technology Co.,
24445 522 497 67 CMNET-V4HENAN-AS-AP Henan Mobile Communic
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
16509 13240 39703 4097 AMAZON-02, US
22773 3392 3017 179 ASN-CXA-ALL-CCI-22773-RDC, US
749 3255 54879 2506 DNIC-AS-00749, US
4155 2664 203 1631 USDA-1, US
36352 2472 204 1101 AS-COLOCROSSING, US
367 2436 2886 1180 DNIC-ASBLK-00306-00371, US
7018 2117 22900 1554 ATT-INTERNET4, US
11776 1894 258 216 ATLANTICBB-JOHNSTOWN, US
6167 1846 3687 467 CELLCO-PART, US
209 1665 4890 275 CENTURYLINK-US-LEGACY-QWEST, US
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
39891 1936 130 50 ALJAWWALSTC-AS, SA
20940 1239 96 1013 AKAMAI-ASN1, NL
34984 941 94 525 TELLCOM-AS, TR
3257 927 2075 745 GTT-BACKBONE GTT, US
3215 891 4810 292 France Telecom - Orange, FR
25019 856 1303 130 SAUDINETSTC-AS, SA
8452 656 1842 17 TE-AS TE-AS, EG
8376 574 53 23 Jordan Data Communications, JO
51167 568 113 251 CONTABO, DE
212238 566 41 498 CDNEXT, GB
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 7393 2024 1014 UNINET, MX
11830 1993 369 64 Instituto Costarricense de Electricidad y
10620 1929 286 1300 Telmex Colombia S.A., CO
3816 1332 784 205 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC,
6147 1190 371 21 Telefonica del Peru S.A.A., PE
26615 989 2503 52 TIM SA, BR
18881 883 1127 31 TELEFONICA BRASIL S.A, BR
27651 648 94 35 ENTEL CHILE S.A., CL
28006 645 77 297 CORPORACION NACIONAL DE TELECOMUNICACIONE
26599 546 2883 72 TELEFONICA BRASIL S.A, BR
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
24863 1615 389 18 LINKdotNET-AS, EG
20011 980 185 285 INTERNET-SOLUTIONS, ZA
29571 962 100 75 ORANGE-COTE-IVOIRE, CI
24835 879 528 38 RAYA-AS, EG
36935 700 519 48 Vodafone-, EG
36992 604 1228 124 ETISALAT-MISR, EG
37069 567 1078 15 MOBINIL, EG
36914 549 82 3 KENET-AS, KE
36903 410 192 301 MT-MPLS, MA
2018 373 318 69 TENET-1, ZA
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
16509 13240 39703 4097 AMAZON-02, US
9808 10182 8754 92 CHINAMOBILE-CN China Mobile Communication
8151 7393 2024 1014 UNINET, MX
22773 3392 3017 179 ASN-CXA-ALL-CCI-22773-RDC, US
749 3255 54879 2506 DNIC-AS-00749, US
4155 2664 203 1631 USDA-1, US
36352 2472 204 1101 AS-COLOCROSSING, US
367 2436 2886 1180 DNIC-ASBLK-00306-00371, US
7018 2117 22900 1554 ATT-INTERNET4, US
11830 1993 369 64 Instituto Costarricense de Electricidad y
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet
Global Per AS Maximum Aggregation summary
-----------------------------------------
ASN No of nets Net Savings Description
9808 10182 10090 CHINAMOBILE-CN China Mobile Communications Grou
8151 7393 6379 UNINET, MX
22773 3392 3213 ASN-CXA-ALL-CCI-22773-RDC, US
11830 1993 1929 Instituto Costarricense de Electricidad y Telec
39891 1936 1886 ALJAWWALSTC-AS, SA
11776 1894 1678 ATLANTICBB-JOHNSTOWN, US
24863 1615 1597 LINKdotNET-AS, EG
56041 1569 1491 CMNET-ZHEJIANG-AP China Mobile communications c
56046 1622 1436 CMNET-JIANGSU-AP China Mobile communications co
56047 1484 1431 CMNET-HUNAN-AP China Mobile communications corp
Complete listing at https://bgp.nsrc.org/REN/KREONet2/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
46639 UNALLOCATED 8.17.66.0/24 701 UUNET, US
46639 UNALLOCATED 8.38.73.0/24 3356 LEVEL3, US
53966 UNALLOCATED 8.39.98.0/24 3356 LEVEL3, US
1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3, US
22542 UNALLOCATED 8.42.195.0/24 3356 LEVEL3, US
395438 UNALLOCATED 8.42.206.0/24 3356 LEVEL3, US
46639 UNALLOCATED 8.42.219.0/24 3356 LEVEL3, US
399953 UNALLOCATED 12.9.122.0/24 7018 ATT-INTERNET4, US
13342 UNALLOCATED 12.17.5.0/24 7018 ATT-INTERNET4, US
Complete listing at https://bgp.nsrc.org/REN/KREONet2/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/KREONet2/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
23.152.48.0/24 Origin: 46167 RESERVED, ZZ
23.152.48.0/24 Transit: 7018 ATT-INTERNET4, US
23.158.216.0/24 Origin: 204535 RESERVED, ZZ
23.158.216.0/24 Transit: 22427 GNET-AS, US
23.166.120.0/24 Origin: 59993 UILLLC-20230328, US
23.166.120.0/24 Transit: 30456 COSMIC-GLOBAL, US
Complete listing at https://bgp.nsrc.org/REN/KREONet2/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 /8:13 /9:10 /10:29 /11:42 /12:153
/13:215 /14:579 /15:1096 /16:7675 /17:3443 /18:4220
/19:7712 /20:12388 /21:15204 /22:27625 /23:27392 /24:153209
/25:60 /26:76 /27:35 /28:13 /29:16 /30:10
/31:0 /32:5
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
8151 3904 7393 UNINET, MX
22773 2532 3392 ASN-CXA-ALL-CCI-22773-RDC, US
16509 2358 13240 AMAZON-02, US
11830 1694 1993 Instituto Costarricense de Electricidad y Telecom., CR
10620 1088 1929 Telmex Colombia S.A., CO
39891 1081 1936 ALJAWWALSTC-AS, SA
36352 997 2472 AS-COLOCROSSING, US
209 964 1665 CENTURYLINK-US-LEGACY-QWEST, US
19901 950 1218 BRSPD-PUBLIC, US
11776 883 1894 ATLANTICBB-JOHNSTOWN, US
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:66 2:469 3:620 4:5 5:832 6:156
7:5 8:638 11:171 12:994 13:294 14:99
15:301 16:244 17:5 18:887 20:174 21:4
22:188 23:2630 24:641 27:21 29:19 31:471
32:9 34:10 35:136 36:1230 37:960 38:1924
39:551 40:62 41:981 42:226 43:191 44:38
45:3498 46:959 47:96 49:18 50:355 51:383
52:1388 54:294 55:1086 56:11 57:15 58:18
59:43 60:16 61:72 62:566 63:768 64:1921
65:1098 66:1568 67:952 68:397 69:1115 70:424
71:205 72:755 74:977 75:427 76:248 77:466
78:327 79:287 80:296 81:365 82:753 83:244
84:369 85:484 86:232 87:243 88:277 89:830
90:105 91:959 92:598 93:456 94:931 95:678
96:289 97:63 98:469 99:162 100:35 101:19
102:375 103:1212 104:1439 105:134 106:16 107:1489
108:548 109:385 110:37 111:1916 112:450 113:35
114:41 115:13 116:57 117:1034 118:62 119:131
120:1171 121:46 122:65 123:72 124:56 125:25
128:466 129:284 130:693 131:869 132:536 133:212
134:489 135:112 136:583 137:502 138:844 139:441
140:706 141:450 142:1028 143:649 144:409 145:111
146:678 147:523 148:862 149:764 150:380 151:643
152:482 153:130 154:1652 155:802 156:1232 157:382
158:535 159:688 160:832 161:702 162:975 163:385
164:717 165:801 166:763 167:616 168:1124 169:154
170:1591 171:122 172:1371 173:843 174:259 175:52
176:873 177:863 178:517 179:673 180:47 181:1719
182:27 183:860 184:482 185:3397 186:1994 187:1356
188:780 189:1706 190:4129 191:411 192:5173 193:1824
194:1231 195:944 196:830 197:1551 198:2701 199:4875
200:3522 201:3240 202:965 203:726 204:2153 205:1937
206:1543 207:1503 208:1404 209:1928 210:308 211:430
212:962 213:882 214:982 215:42 216:2515 217:432
218:515 219:18 220:26 221:305 222:32 223:761
End of report
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