* BGP Routing Table Analysis Reports *
Routing Table Report 08:00 +10GMT Mon 02 Jul, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 407671
Prefixes after maximum aggregation: 173167
Deaggregation factor: 2.35
Unique aggregates announced to Internet: 202364
Total ASes present in the Internet Routing Table: 38677
Prefixes per ASN: 10.54
Origin-only ASes present in the Internet Routing Table: 33330
Origin ASes announcing only one prefix: 15693
Transit ASes present in the Internet Routing Table: 5347
Transit-only ASes present in the Internet Routing Table: 118
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 26
Max AS path prepend of ASN ( 51742) 24
Prefixes from unregistered ASNs in the Routing Table: 1026
Unregistered ASNs in the Routing Table: 165
Number of 32-bit ASNs allocated by the RIRs: 2922
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 6526
Special use prefixes present in the Routing Table: 8
Prefixes being announced from unallocated address space: 162
Number of addresses announced to Internet: 2590202112
Equivalent to 154 /8s, 99 /16s and 89 /24s
Percentage of available address space announced: 69.9
Percentage of allocated address space announced: 70.0
Percentage of available address space allocated: 99.9
Percentage of address space in use by end-sites: 93.1
Total number of prefixes smaller than registry allocations: 140656
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 95199
Total APNIC prefixes after maximum aggregation: 31180
APNIC Deaggregation factor: 3.05
Prefixes being announced from the APNIC address blocks: 96216
Unique aggregates announced from the APNIC address blocks: 41997
APNIC Region origin ASes present in the Internet Routing Table: 4668
APNIC Prefixes per ASN: 20.61
APNIC Region origin ASes announcing only one prefix: 1273
APNIC Region transit ASes present in the Internet Routing Table: 726
Average APNIC Region AS path length visible: 4.1
Max APNIC Region AS path length visible: 20
Number of APNIC region 32-bit ASNs visible in the Routing Table: 0
Number of APNIC addresses announced to Internet: 701061632
Equivalent to 41 /8s, 201 /16s and 90 /24s
Percentage of available APNIC address space announced: 81.9
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: 150638
Total ARIN prefixes after maximum aggregation: 76683
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 151527
Unique aggregates announced from the ARIN address blocks: 68210
ARIN Region origin ASes present in the Internet Routing Table: 15092
ARIN Prefixes per ASN: 10.04
ARIN Region origin ASes announcing only one prefix: 5744
ARIN Region transit ASes present in the Internet Routing Table: 1513
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 22
Number of ARIN region 32-bit ASNs visible in the Routing Table: 0
Number of ARIN addresses announced to Internet: 1080092160
Equivalent to 64 /8s, 96 /16s and 230 /24s
Percentage of available ARIN address space announced: 57.1
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, 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: 104144
Total RIPE prefixes after maximum aggregation: 54917
RIPE Deaggregation factor: 1.90
Prefixes being announced from the RIPE address blocks: 106300
Unique aggregates announced from the RIPE address blocks: 67083
RIPE Region origin ASes present in the Internet Routing Table: 16621
RIPE Prefixes per ASN: 6.40
RIPE Region origin ASes announcing only one prefix: 8065
RIPE Region transit ASes present in the Internet Routing Table: 2622
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 26
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 634424064
Equivalent to 37 /8s, 208 /16s and 139 /24s
Percentage of available RIPE address space announced: 92.2
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: 41082
Total LACNIC prefixes after maximum aggregation: 8180
LACNIC Deaggregation factor: 5.02
Prefixes being announced from the LACNIC address blocks: 43654
Unique aggregates announced from the LACNIC address blocks: 21648
LACNIC Region origin ASes present in the Internet Routing Table: 1597
LACNIC Prefixes per ASN: 27.34
LACNIC Region origin ASes announcing only one prefix: 437
LACNIC Region transit ASes present in the Internet Routing Table: 300
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 21
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 0
Number of LACNIC addresses announced to Internet: 111534336
Equivalent to 6 /8s, 165 /16s and 225 /24s
Percentage of available LACNIC address space announced: 66.5
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
262144-263167 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: 9362
Total AfriNIC prefixes after maximum aggregation: 2153
AfriNIC Deaggregation factor: 4.35
Prefixes being announced from the AfriNIC address blocks: 9811
Unique aggregates announced from the AfriNIC address blocks: 3284
AfriNIC Region origin ASes present in the Internet Routing Table: 548
AfriNIC Prefixes per ASN: 17.90
AfriNIC Region origin ASes announcing only one prefix: 174
AfriNIC Region transit ASes present in the Internet Routing Table: 124
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: 0
Number of AfriNIC addresses announced to Internet: 40517376
Equivalent to 2 /8s, 106 /16s and 63 /24s
Percentage of available AfriNIC address space announced: 40.3
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
4766 1996 11107 762 Korea Telecom (KIX)
17974 1888 540 77 PT Telekomunikasi Indonesia
7545 1684 301 86 TPG Internet Pty Ltd
4755 1573 384 152 TATA Communications formerly
9829 1304 1085 28 National Internet Backbone
9583 1176 88 513 Sify Limited
7552 1051 1062 11 Vietel Corporation
24560 1034 385 165 Bharti Airtel Ltd., Telemedia
9498 972 291 65 BHARTI Airtel Ltd.
4808 956 1942 283 CNCGROUP IP network China169
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 3396 3790 190 BellSouth.net Inc.
7029 3234 1006 177 Windstream Communications Inc
18566 2091 382 180 Covad Communications Co.
1785 1927 681 130 PaeTec Communications, Inc.
22773 1655 2911 121 Cox Communications Inc.
20115 1651 1573 616 Charter Communications
4323 1571 1059 383 tw telecom holdings, inc.
30036 1446 271 750 Mediacom Communications Corp
7018 1254 10059 822 AT&T Services, Inc.
11492 1190 216 354 CABLE ONE, INC.
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 1606 544 16 Corbina telecom
2118 1288 97 14 EUnet/RELCOM Autonomous Syste
12479 779 731 92 France Telecom Espana SA
34984 716 189 175 BILISIM TELEKOM
31148 690 37 9 FreeNet ISP
6830 688 2234 436 UPC Broadband
20940 647 208 511 Akamai Technologies European
8551 607 364 61 Bezeq International
9116 512 326 31 Goldenlines main autonomous s
13188 498 100 10 Ukraine
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
10620 1982 345 204 Types of queries are: POCs, o
28573 1930 1213 54 Types of queries are: POCs, o
6503 1517 418 67 Axtel, S.A.B. de C.V.
7303 1455 933 193 Telecom Argentina S.A.
8151 1352 3047 338 Uninet S.A. de C.V.
27947 684 74 88 Telconet S.A
11172 641 107 75 Alestra, S. de R.L. de C.V.
3816 593 246 90 Types of queries are: POCs, o
22047 583 326 15 Types of queries are: POCs, o
14117 573 67 65 Telefonica del Sur S.A.
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
8452 1273 958 13 TEDATA
24863 859 274 32 LINKdotNET AS number
6713 500 649 18 Itissalat Al-MAGHRIB
24835 321 80 8 RAYA Telecom - Egypt
3741 262 905 223 The Internet Solution
33776 210 12 21 Starcomms Nigeria Limited
12258 197 28 62 Vodacom Internet Company
29975 167 571 19 Vodacom
15706 164 32 6 Sudatel Internet Exchange Aut
29571 158 15 15 Ci Telecom Autonomous system
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 3396 3790 190 BellSouth.net Inc.
7029 3234 1006 177 Windstream Communications Inc
18566 2091 382 180 Covad Communications Co.
4766 1996 11107 762 Korea Telecom (KIX)
10620 1982 345 204 Types of queries are: POCs, o
28573 1930 1213 54 Types of queries are: POCs, o
1785 1927 681 130 PaeTec Communications, Inc.
17974 1888 540 77 PT Telekomunikasi Indonesia
7545 1684 301 86 TPG Internet Pty Ltd
22773 1655 2911 121 Cox Communications Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
7029 3234 3057 Windstream Communications Inc
18566 2091 1911 Covad Communications Co.
28573 1930 1876 Types of queries are: POCs, o
17974 1888 1811 PT Telekomunikasi Indonesia
1785 1927 1797 PaeTec Communications, Inc.
10620 1982 1778 Types of queries are: POCs, o
7545 1684 1598 TPG Internet Pty Ltd
8402 1606 1590 Corbina telecom
22773 1655 1534 Cox Communications Inc.
6503 1517 1450 Axtel, S.A.B. de C.V.
Complete listing at http://thyme.rand.apnic.net/london/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
65333 PRIVATE 10.0.0.0/8 0 *
32805 UNALLOCATED 12.1.225.0/24 7018 AT&T Services, Inc.
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T Services, Inc.
16504 UNALLOCATED 12.18.155.0/24 30170 Optic Fusion
30031 UNALLOCATED 12.27.122.0/24 7018 AT&T Services, Inc.
26095 UNALLOCATED 12.34.8.0/24 7018 AT&T Services, Inc.
21861 UNALLOCATED 12.37.59.0/24 7018 AT&T Services, Inc.
25639 UNALLOCATED 12.41.169.0/24 7018 AT&T Services, Inc.
19577 UNALLOCATED 12.41.188.0/24 7832 WW/Precision Communi
13317 UNALLOCATED 12.44.10.0/24 7018 AT&T Services, Inc.
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
128.0.0.0/21 12654 RIPE NCC RIS Project
128.0.24.0/24 12654 RIPE NCC RIS Project
169.254.0.0/16 65333 Internet Assigned Numbers Aut
172.16.0.0/12 65333 Internet Assigned Numbers Aut
192.0.2.0/24 65333 Internet Assigned Numbers Aut
192.168.0.0/16 0 *
198.18.0.0/15 65333 Internet Assigned Numbers Aut
Complete listing at http://thyme.rand.apnic.net/london/data-dsua
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
14.192.0.0/22 45464 Room 201, TGU Bldg
14.192.4.0/22 45464 Room 201, TGU Bldg
14.192.8.0/22 45464 Room 201, TGU Bldg
14.192.12.0/22 45464 Room 201, TGU Bldg
14.192.16.0/22 45464 Room 201, TGU Bldg
14.192.20.0/22 45464 Room 201, TGU Bldg
14.192.24.0/22 45464 Room 201, TGU Bldg
14.192.28.0/22 45464 Room 201, TGU Bldg
27.112.114.0/24 23884 Proimage Engineering and Comm
62.61.220.0/24 24974 Tachyon Europe BV
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 /8:20 /9:13 /10:29 /11:83 /12:236
/13:462 /14:834 /15:1512 /16:12231 /17:6335 /18:10644
/19:20693 /20:29504 /21:31010 /22:40369 /23:38647 /24:214485
/25:11 /26:20 /27:19 /28:148 /29:142 /30:84
/31:0 /32:140
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2614 3234 Windstream Communications Inc
18566 2041 2091 Covad Communications Co.
6389 1870 3396 BellSouth.net Inc.
30036 1383 1446 Mediacom Communications Corp
8402 1309 1606 Corbina telecom
11492 1153 1190 CABLE ONE, INC.
22773 1086 1655 Cox Communications Inc.
6503 1053 1517 Axtel, S.A.B. de C.V.
1785 1040 1927 PaeTec Communications, Inc.
8452 1032 1273 TEDATA
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:521 2:705 3:1 4:13 5:96 6:3
8:429 12:1969 13:1 14:623 15:12 16:3
17:5 20:24 23:183 24:1786 27:1312 31:1014
32:51 33:2 34:2 36:9 37:598 38:809
39:1 40:128 41:3154 42:142 44:3 46:1462
47:2 49:404 50:562 52:13 54:12 55:7
56:1 57:31 58:929 59:496 60:247 61:1117
62:994 63:2028 64:4227 65:2245 66:4459 67:2008
68:1150 69:3188 70:978 71:502 72:1832 74:2597
75:475 76:332 77:945 78:896 79:490 80:1218
81:947 82:677 83:528 84:509 85:1181 86:441
87:936 88:344 89:1747 90:299 91:4987 92:576
93:1375 94:1562 95:1222 96:368 97:318 98:907
99:36 100:18 101:247 103:1189 106:100 107:189
108:338 109:1411 110:767 111:935 112:411 113:614
114:642 115:820 116:901 117:713 118:923 119:1171
120:343 121:674 122:1634 123:1095 124:1328 125:1256
128:496 129:182 130:251 131:610 132:285 133:22
134:234 135:61 136:214 137:228 138:336 139:173
140:466 141:259 142:401 143:366 144:532 145:76
146:502 147:287 148:746 149:317 150:149 151:174
152:475 153:175 154:16 155:450 156:216 157:336
158:191 159:544 160:341 161:245 162:352 163:181
164:627 165:409 166:583 167:475 168:909 169:125
170:884 171:145 172:5 173:1744 174:620 175:429
176:547 177:875 178:1533 180:1256 181:98 182:1001
183:242 184:533 185:1 186:1909 187:1084 188:1353
189:1596 190:5772 192:5964 193:5545 194:4546 195:3427
196:1211 197:171 198:3614 199:4750 200:5785 201:1976
202:8412 203:8522 204:4248 205:2511 206:2708 207:2716
208:4020 209:3593 210:2693 211:1531 212:2037 213:1936
214:820 215:83 216:5077 217:1567 218:540 219:301
220:1234 221:552 222:285 223:341
End of report
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