* BGP Routing Table Analysis Reports *
Routing Table Report 08:00 +10GMT Tue 12 Jun, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 405997
Prefixes after maximum aggregation: 172903
Deaggregation factor: 2.35
Unique aggregates announced to Internet: 201770
Total ASes present in the Internet Routing Table: 38657
Prefixes per ASN: 10.50
Origin-only ASes present in the Internet Routing Table: 33336
Origin ASes announcing only one prefix: 15702
Transit ASes present in the Internet Routing Table: 5321
Transit-only ASes present in the Internet Routing Table: 122
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: 1192
Unregistered ASNs in the Routing Table: 232
Number of 32-bit ASNs allocated by the RIRs: 2823
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 6219
Special use prefixes present in the Routing Table: 8
Prefixes being announced from unallocated address space: 156
Number of addresses announced to Internet: 2581710592
Equivalent to 153 /8s, 225 /16s and 199 /24s
Percentage of available address space announced: 69.7
Percentage of allocated address space announced: 69.7
Percentage of available address space allocated: 99.9
Percentage of address space in use by end-sites: 92.8
Total number of prefixes smaller than registry allocations: 166970
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 94791
Total APNIC prefixes after maximum aggregation: 31132
APNIC Deaggregation factor: 3.04
Prefixes being announced from the APNIC address blocks: 92301
Unique aggregates announced from the APNIC address blocks: 40281
APNIC Region origin ASes present in the Internet Routing Table: 4665
APNIC Prefixes per ASN: 19.79
APNIC Region origin ASes announcing only one prefix: 1283
APNIC Region transit ASes present in the Internet Routing Table: 714
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: 646464768
Equivalent to 38 /8s, 136 /16s and 69 /24s
Percentage of available APNIC address space announced: 82.0
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, 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: 150364
Total ARIN prefixes after maximum aggregation: 76632
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 120972
Unique aggregates announced from the ARIN address blocks: 51350
ARIN Region origin ASes present in the Internet Routing Table: 15091
ARIN Prefixes per ASN: 8.02
ARIN Region origin ASes announcing only one prefix: 5747
ARIN Region transit ASes present in the Internet Routing Table: 1523
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: 0
Number of ARIN addresses announced to Internet: 816477696
Equivalent to 48 /8s, 170 /16s and 118 /24s
Percentage of available ARIN address space announced: 65.1
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, 173/8,
174/8, 184/8, 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: 103213
Total RIPE prefixes after maximum aggregation: 54758
RIPE Deaggregation factor: 1.88
Prefixes being announced from the RIPE address blocks: 95245
Unique aggregates announced from the RIPE address blocks: 59927
RIPE Region origin ASes present in the Internet Routing Table: 16609
RIPE Prefixes per ASN: 5.73
RIPE Region origin ASes announcing only one prefix: 8068
RIPE Region transit ASes present in the Internet Routing Table: 2600
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 24
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 515437568
Equivalent to 30 /8s, 184 /16s and 244 /24s
Percentage of available RIPE address space announced: 83.0
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,
176/8, 178/8, 185/8, 193/8, 194/8, 195/8, 212/8,
213/8, 217/8,
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 41273
Total LACNIC prefixes after maximum aggregation: 8157
LACNIC Deaggregation factor: 5.06
Prefixes being announced from the LACNIC address blocks: 41624
Unique aggregates announced from the LACNIC address blocks: 20642
LACNIC Region origin ASes present in the Internet Routing Table: 1589
LACNIC Prefixes per ASN: 26.20
LACNIC Region origin ASes announcing only one prefix: 437
LACNIC Region transit ASes present in the Internet Routing Table: 295
Average LACNIC Region AS path length visible: 3.9
Max LACNIC Region AS path length visible: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 0
Number of LACNIC addresses announced to Internet: 102222080
Equivalent to 6 /8s, 23 /16s and 201 /24s
Percentage of available LACNIC address space announced: 67.7
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,
200/8, 201/8,
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 9310
Total AfriNIC prefixes after maximum aggregation: 2160
AfriNIC Deaggregation factor: 4.31
Prefixes being announced from the AfriNIC address blocks: 7347
Unique aggregates announced from the AfriNIC address blocks: 2202
AfriNIC Region origin ASes present in the Internet Routing Table: 545
AfriNIC Prefixes per ASN: 13.48
AfriNIC Region origin ASes announcing only one prefix: 167
AfriNIC Region transit ASes present in the Internet Routing Table: 122
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: 31833344
Equivalent to 1 /8s, 229 /16s and 189 /24s
Percentage of available AfriNIC address space announced: 47.4
AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 102/8, 105/8, 197/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4766 1978 11104 732 Korea Telecom (KIX)
17974 1841 530 81 PT Telekomunikasi Indonesia
7545 1681 301 88 TPG Internet Pty Ltd
4755 1568 384 152 TATA Communications formerly
9829 1300 1085 28 National Internet Backbone
9583 1175 87 502 Sify Limited
7552 1112 1062 11 Vietel Corporation
24560 1028 385 163 Bharti Airtel Ltd., Telemedia
9498 966 291 64 BHARTI Airtel Ltd.
18101 953 131 160 Reliance Infocom Ltd Internet
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 3410 3791 193 BellSouth.net Inc.
7029 3288 1016 171 Windstream Communications Inc
18566 2092 382 181 Covad Communications Co.
1785 1919 681 131 PaeTec Communications, Inc.
20115 1647 1571 615 Charter Communications
22773 1643 2911 121 Cox Communications Inc.
4323 1570 1059 384 tw telecom holdings, inc.
30036 1425 265 753 Mediacom Communications Corp
7018 1227 10061 827 AT&T Services, Inc.
11492 1189 216 356 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 1575 544 16 Corbina telecom
2118 1226 97 14 EUnet/RELCOM Autonomous Syste
12479 714 700 83 France Telecom Espana SA
34984 706 188 171 BILISIM TELEKOM
31148 684 37 9 FreeNet ISP
6830 656 2217 425 UPC Broadband
20940 649 216 514 Akamai Technologies European
9116 540 326 31 Goldenlines main autonomous s
8551 504 364 61 Bezeq International
3320 489 8442 402 Deutsche Telekom AG
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 1932 342 205 Types of queries are: POCs, o
28573 1924 1184 48 Types of queries are: POCs, o
6503 1519 418 67 Axtel, S.A.B. de C.V.
7303 1436 901 194 Telecom Argentina S.A.
8151 1343 3049 332 Uninet S.A. de C.V.
26615 902 760 31 Tim Celular S.A.
27947 681 74 87 Telconet S.A
11172 646 107 74 Alestra, S. de R.L. de C.V.
3816 587 247 89 Types of queries are: POCs, o
22047 583 326 15 Types of queries are: POCs, o
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 1327 958 13 TEDATA
24863 852 274 32 LINKdotNET AS number
6713 496 649 18 Itissalat Al-MAGHRIB
24835 321 80 8 RAYA Telecom - Egypt
3741 262 905 223 The Internet Solution
33776 206 12 23 Starcomms Nigeria Limited
12258 197 28 62 Vodacom Internet Company
16637 159 664 88 MTN Network Solutions
29571 157 15 16 Ci Telecom Autonomous system
36923 157 20 4 Swift Networks Limited
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 3410 3791 193 BellSouth.net Inc.
7029 3288 1016 171 Windstream Communications Inc
18566 2092 382 181 Covad Communications Co.
4766 1978 11104 732 Korea Telecom (KIX)
10620 1932 342 205 Types of queries are: POCs, o
28573 1924 1184 48 Types of queries are: POCs, o
1785 1919 681 131 PaeTec Communications, Inc.
17974 1841 530 81 PT Telekomunikasi Indonesia
7545 1681 301 88 TPG Internet Pty Ltd
20115 1647 1571 615 Charter Communications
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 3288 3117 Windstream Communications Inc
18566 2092 1911 Covad Communications Co.
28573 1924 1876 Types of queries are: POCs, o
1785 1919 1788 PaeTec Communications, Inc.
17974 1841 1760 PT Telekomunikasi Indonesia
10620 1932 1727 Types of queries are: POCs, o
7545 1681 1593 TPG Internet Pty Ltd
8402 1575 1559 Corbina telecom
22773 1643 1522 Cox Communications Inc.
6503 1519 1452 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
41.188.64.0/18 29544 Mauritanian Telecommunication
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 /11:82 /12:236
/13:459 /14:827 /15:1502 /16:12252 /17:6272 /18:10536
/19:20652 /20:29419 /21:30768 /22:40249 /23:38120 /24:213997
/25:11 /26:21 /27:20 /28:150 /29:145 /30:80
/31:0 /32:137
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2929 3288 Windstream Communications Inc
6389 2129 3410 BellSouth.net Inc.
18566 2041 2092 Covad Communications Co.
8402 1554 1575 Corbina telecom
30036 1365 1425 Mediacom Communications Corp
6503 1208 1519 Axtel, S.A.B. de C.V.
11492 1152 1189 CABLE ONE, INC.
8452 1122 1327 TEDATA
22773 1088 1643 Cox Communications Inc.
7011 1073 1188 Frontier Communications of Am
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:554 2:635 3:1 4:13 5:50 6:3
8:425 12:1981 13:1 14:609 15:12 16:3
17:5 20:23 23:176 24:1773 27:1304 31:999
32:51 33:2 34:2 36:9 37:691 38:807
40:125 41:3175 42:135 44:3 46:1423 47:2
49:382 50:557 52:13 54:12 55:8 56:1
57:29 58:910 59:493 60:253 61:1106 62:1006
63:2000 64:4222 65:2250 66:4440 67:2009 68:1158
69:3174 70:949 71:507 72:1825 74:2592 75:472
76:328 77:946 78:972 79:488 80:1218 81:939
82:671 83:543 84:508 85:1177 86:441 87:924
88:337 89:1723 90:293 91:4924 92:556 93:1355
94:1567 95:1212 96:362 97:315 98:899 99:35
100:7 101:256 103:1113 106:95 107:186 108:312
109:1369 110:761 111:919 112:408 113:599 114:625
115:839 116:934 117:705 118:908 119:1193 120:350
121:677 122:1628 123:1122 124:1323 125:1258 128:527
129:191 130:244 131:629 132:283 133:22 134:234
135:61 136:214 137:236 138:357 139:185 140:467
141:251 142:396 143:367 144:528 145:72 146:506
147:294 148:753 149:311 150:157 151:179 152:467
153:174 154:12 155:464 156:219 157:336 158:188
159:499 160:349 161:243 162:345 163:179 164:629
165:401 166:590 167:472 168:860 169:126 170:882
171:138 172:4 173:1762 174:604 175:423 176:540
177:800 178:1393 180:1227 181:91 182:1028 183:227
184:530 185:1 186:2325 187:1125 188:1346 189:1836
190:5576 192:5960 193:5524 194:4538 195:3389 196:1223
197:150 198:3617 199:4719 200:5785 201:1943 202:8348
203:8445 204:4268 205:2504 206:2682 207:2728 208:4006
209:3593 210:2701 211:1524 212:2033 213:1936 214:871
215:90 216:5074 217:1571 218:538 219:305 220:1231
221:553 222:287 223:306
End of report
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