* BGP Routing Table Analysis Reports *
Routing Table Report 08:00 +10GMT Sun 23 Jun, 2013
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 450971
Prefixes after maximum aggregation: 184067
Deaggregation factor: 2.45
Unique aggregates announced to Internet: 227371
Total ASes present in the Internet Routing Table: 40465
Prefixes per ASN: 11.14
Origin-only ASes present in the Internet Routing Table: 34770
Origin ASes announcing only one prefix: 16183
Transit ASes present in the Internet Routing Table: 5687
Transit-only ASes present in the Internet Routing Table: 127
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 24
Max AS path prepend of ASN ( 36992) 22
Prefixes from unregistered ASNs in the Routing Table: 405746
Unregistered ASNs in the Routing Table: 33224
Number of 32-bit ASNs allocated by the RIRs: 4810
Number of 32-bit ASNs visible in the Routing Table: 8
Prefixes from 32-bit ASNs in the Routing Table: 10822
Special use prefixes present in the Routing Table: 31
Prefixes being announced from unallocated address space: 224
Number of addresses announced to Internet: 2663399168
Equivalent to 158 /8s, 192 /16s and 63 /24s
Percentage of available address space announced: 71.9
Percentage of allocated address space announced: 71.9
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 94.7
Total number of prefixes smaller than registry allocations: 156396
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 104713
Total APNIC prefixes after maximum aggregation: 32248
APNIC Deaggregation factor: 3.25
Prefixes being announced from the APNIC address blocks: 107517
Unique aggregates announced from the APNIC address blocks: 45992
APNIC Region origin ASes present in the Internet Routing Table: 4803
APNIC Prefixes per ASN: 22.39
APNIC Region origin ASes announcing only one prefix: 1241
APNIC Region transit ASes present in the Internet Routing Table: 788
Average APNIC Region AS path length visible: 3.9
Max APNIC Region AS path length visible: 19
Number of APNIC region 32-bit ASNs visible in the Routing Table: 1
Number of APNIC addresses announced to Internet: 724136704
Equivalent to 43 /8s, 41 /16s and 115 /24s
Percentage of available APNIC address space announced: 84.6
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 131072-133119
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: 157425
Total ARIN prefixes after maximum aggregation: 79849
ARIN Deaggregation factor: 1.97
Prefixes being announced from the ARIN address blocks: 158150
Unique aggregates announced from the ARIN address blocks: 74070
ARIN Region origin ASes present in the Internet Routing Table: 15677
ARIN Prefixes per ASN: 10.09
ARIN Region origin ASes announcing only one prefix: 5989
ARIN Region transit ASes present in the Internet Routing Table: 1578
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 19
Number of ARIN region 32-bit ASNs visible in the Routing Table: 2
Number of ARIN addresses announced to Internet: 1081623552
Equivalent to 64 /8s, 120 /16s and 68 /24s
Percentage of available ARIN address space announced: 57.2
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, 393216-394239
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,
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: 117968
Total RIPE prefixes after maximum aggregation: 60189
RIPE Deaggregation factor: 1.96
Prefixes being announced from the RIPE address blocks: 120932
Unique aggregates announced from the RIPE address blocks: 78338
RIPE Region origin ASes present in the Internet Routing Table: 17228
RIPE Prefixes per ASN: 7.02
RIPE Region origin ASes announcing only one prefix: 8178
RIPE Region transit ASes present in the Internet Routing Table: 2784
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 21
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1
Number of RIPE addresses announced to Internet: 656434176
Equivalent to 39 /8s, 32 /16s and 100 /24s
Percentage of available RIPE address space announced: 95.4
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, 196608-199679
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: 48157
Total LACNIC prefixes after maximum aggregation: 9239
LACNIC Deaggregation factor: 5.21
Prefixes being announced from the LACNIC address blocks: 52427
Unique aggregates announced from the LACNIC address blocks: 24849
LACNIC Region origin ASes present in the Internet Routing Table: 1957
LACNIC Prefixes per ASN: 26.79
LACNIC Region origin ASes announcing only one prefix: 586
LACNIC Region transit ASes present in the Internet Routing Table: 345
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 17
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 3
Number of LACNIC addresses announced to Internet: 132327424
Equivalent to 7 /8s, 227 /16s and 40 /24s
Percentage of available LACNIC address space announced: 78.9
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
61440-61951, 262144-263679 plus 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: 11161
Total AfriNIC prefixes after maximum aggregation: 2501
AfriNIC Deaggregation factor: 4.46
Prefixes being announced from the AfriNIC address blocks: 11720
Unique aggregates announced from the AfriNIC address blocks: 3913
AfriNIC Region origin ASes present in the Internet Routing Table: 637
AfriNIC Prefixes per ASN: 18.40
AfriNIC Region origin ASes announcing only one prefix: 189
AfriNIC Region transit ASes present in the Internet Routing Table: 126
Average AfriNIC Region AS path length visible: 3.4
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1
Number of AfriNIC addresses announced to Internet: 46297600
Equivalent to 2 /8s, 194 /16s and 114 /24s
Percentage of available AfriNIC address space announced: 46.0
AfriNIC AS Blocks 36864-37887, 327680-328703 & 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
17974 2555 855 91 >>UNKNOWN<<
4766 2130 11553 623 >>UNKNOWN<<
7545 2006 320 110 TPG Telecom Limited
4755 1771 394 202 >>UNKNOWN<<
9829 1518 1205 40 >>UNKNOWN<<
9583 1278 98 538 >>UNKNOWN<<
9498 1139 309 72 BHARTI Airtel Ltd.
7552 1122 1080 13 >>UNKNOWN<<
24560 1077 394 164 >>UNKNOWN<<
4808 1060 2017 307 >>UNKNOWN<<
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 2998 3691 73 BellSouth.net Inc.
18566 2062 382 183 Covad Communications Co.
1785 1993 678 126 >>UNKNOWN<<
22773 1983 2927 123 >>UNKNOWN<<
20115 1665 1617 616 >>UNKNOWN<<
4323 1625 1154 403 >>UNKNOWN<<
701 1528 11143 798 >>UNKNOWN<<
30036 1335 301 647 >>UNKNOWN<<
7018 1314 11076 846 >>UNKNOWN<<
11492 1220 217 360 >>UNKNOWN<<
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8402 1477 544 16 >>UNKNOWN<<
34984 1273 241 217 >>UNKNOWN<<
2118 1069 97 13 >>UNKNOWN<<
20940 881 308 693 >>UNKNOWN<<
13188 825 98 79 >>UNKNOWN<<
8551 819 370 44 >>UNKNOWN<<
31148 805 40 25 >>UNKNOWN<<
6830 765 2376 439 >>UNKNOWN<<
12479 684 789 57 >>UNKNOWN<<
34744 675 172 76 >>UNKNOWN<<
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
28573 2821 1558 107 >>UNKNOWN<<
10620 2674 420 199 >>UNKNOWN<<
7303 1732 1155 221 >>UNKNOWN<<
8151 1242 2717 382 >>UNKNOWN<<
18881 1002 844 20 >>UNKNOWN<<
6503 862 435 66 >>UNKNOWN<<
27947 793 89 108 >>UNKNOWN<<
3816 719 307 87 >>UNKNOWN<<
7738 698 1370 35 >>UNKNOWN<<
6147 663 374 25 >>UNKNOWN<<
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
36998 1237 80 4 >>UNKNOWN<<
24863 883 274 30 >>UNKNOWN<<
6713 542 617 25 >>UNKNOWN<<
8452 464 956 9 >>UNKNOWN<<
24835 344 80 8 >>UNKNOWN<<
3741 261 922 219 >>UNKNOWN<<
15706 222 32 6 >>UNKNOWN<<
37054 211 11 5 >>UNKNOWN<<
29571 207 17 12 >>UNKNOWN<<
36992 198 527 21 >>UNKNOWN<<
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 2998 3691 73 BellSouth.net Inc.
28573 2821 1558 107 >>UNKNOWN<<
10620 2674 420 199 >>UNKNOWN<<
17974 2555 855 91 >>UNKNOWN<<
4766 2130 11553 623 >>UNKNOWN<<
18566 2062 382 183 Covad Communications Co.
7545 2006 320 110 TPG Telecom Limited
1785 1993 678 126 >>UNKNOWN<<
22773 1983 2927 123 >>UNKNOWN<<
4755 1771 394 202 >>UNKNOWN<<
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
28573 2821 2714 >>UNKNOWN<<
10620 2674 2475 >>UNKNOWN<<
17974 2555 2464 >>UNKNOWN<<
7545 2006 1896 TPG Telecom Limited
18566 2062 1879 Covad Communications Co.
1785 1993 1867 >>UNKNOWN<<
22773 1983 1860 >>UNKNOWN<<
4755 1771 1569 >>UNKNOWN<<
7303 1732 1511 >>UNKNOWN<<
4766 2130 1507 >>UNKNOWN<<
Complete listing at http://thyme.rand.apnic.net/london/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
38669 UNALLOCATED 1.11.96.0/22 38091 KRNIC
38669 UNALLOCATED 1.11.100.0/22 38091 KRNIC
38669 UNALLOCATED 1.11.104.0/22 38091 KRNIC
38669 UNALLOCATED 1.11.108.0/22 38091 KRNIC
38669 UNALLOCATED 1.11.112.0/22 38091 KRNIC
38669 UNALLOCATED 1.11.116.0/22 38091 KRNIC
38669 UNALLOCATED 1.11.120.0/22 38091 KRNIC
38669 UNALLOCATED 1.11.124.0/22 38091 KRNIC
17839 UNALLOCATED 1.11.128.0/17 38091 KRNIC
18245 UNALLOCATED 1.12.0.0/14 4847 >>UNKNOWN<<
Complete listing at http://thyme.rand.apnic.net/london/data-badAS
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
10.0.0.0/8 65333 Internet Assigned Numbers Aut
128.0.0.0/24 2876 >>UNKNOWN<<
128.0.16.0/21 43568 Romerike Bredband AS
128.0.24.0/21 41794 Sibirskie Seti Ltd.
128.0.46.0/23 39743 >>UNKNOWN<<
128.0.53.0/24 60993 >>UNKNOWN<<
128.0.54.0/24 60972 >>UNKNOWN<<
128.0.55.0/24 48571 efectRO SRL
128.0.57.0/24 60993 >>UNKNOWN<<
128.0.58.0/23 9050 >>UNKNOWN<<
Complete listing at http://thyme.rand.apnic.net/london/data-dsua
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
62.61.220.0/24 24974 >>UNKNOWN<<
62.61.221.0/24 24974 >>UNKNOWN<<
64.185.224.0/24 27431 >>UNKNOWN<<
64.185.225.0/24 27431 >>UNKNOWN<<
64.185.226.0/24 27431 >>UNKNOWN<<
64.185.227.0/24 27431 >>UNKNOWN<<
64.185.228.0/24 27431 >>UNKNOWN<<
64.185.229.0/24 27431 >>UNKNOWN<<
64.185.230.0/24 27431 >>UNKNOWN<<
64.185.231.0/24 27431 >>UNKNOWN<<
Complete listing at http://thyme.rand.apnic.net/london/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 /8:18 /9:11 /10:31 /11:91 /12:251
/13:481 /14:898 /15:1603 /16:12668 /17:6643 /18:11112
/19:22161 /20:32048 /21:34342 /22:47236 /23:41907 /24:238875
/25:7 /26:11 /27:12 /28:133 /29:197 /30:103
/31:0 /32:132
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 2013 2062 Covad Communications Co.
6389 1721 2998 BellSouth.net Inc.
22773 1289 1983 >>UNKNOWN<<
36998 1231 1237 >>UNKNOWN<<
30036 1202 1335 >>UNKNOWN<<
11492 1182 1220 >>UNKNOWN<<
8402 1177 1477 >>UNKNOWN<<
1785 1062 1993 >>UNKNOWN<<
6983 1011 1141 ITC^Deltacom
10620 994 2674 >>UNKNOWN<<
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:794 2:708 3:3 4:16 5:797 6:15
8:552 12:1925 13:3 14:829 15:11 16:3
17:10 20:17 23:280 24:1764 27:1487 31:1256
32:38 33:2 34:5 36:47 37:1867 38:873
39:2 40:170 41:2883 42:197 44:7 46:1896
47:2 49:1314 50:725 52:12 54:35 55:6
57:30 58:1080 59:603 60:312 61:1473 62:1128
63:2023 64:4308 65:2148 66:4167 67:2070 68:1074
69:3258 70:856 71:487 72:1913 74:2461 75:321
76:303 77:1095 78:1006 79:609 80:1269 81:1009
82:632 83:582 84:543 85:1167 86:436 87:994
88:541 89:1746 90:147 91:5519 92:605 93:1721
94:1874 95:1633 96:515 97:346 98:1009 99:39
100:29 101:328 103:2835 105:517 106:142 107:207
108:493 109:1835 110:900 111:1057 112:546 113:812
114:706 115:1032 116:938 117:788 118:1095 119:1272
120:381 121:841 122:1754 123:1218 124:1327 125:1374
128:601 129:201 130:295 131:654 132:351 133:155
134:259 135:67 136:222 137:238 138:347 139:189
140:184 141:317 142:514 143:375 144:495 145:93
146:496 147:370 148:655 149:346 150:148 151:533
152:419 153:189 154:23 155:408 156:267 157:349
158:279 159:642 160:345 161:427 162:449 163:203
164:599 165:492 166:243 167:591 168:1032 169:129
170:1052 171:181 172:21 173:1569 174:539 175:456
176:980 177:2081 178:1855 179:44 180:1427 181:466
182:1221 183:384 184:662 185:556 186:2264 187:1282
188:2151 189:1283 190:6818 192:6674 193:5667 194:4607
195:3440 196:1356 197:1009 198:4432 199:5308 200:5972
201:2226 202:8670 203:8803 204:4441 205:2545 206:2704
207:2777 208:4045 209:3672 210:2839 211:1510 212:2221
213:1971 214:915 215:98 216:5284 217:1619 218:607
219:338 220:1278 221:556 222:323 223:455
End of report
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