Routing Table Report 08:00 +10GMT Mon 27 Feb, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 392347
Prefixes after maximum aggregation: 168109
Deaggregation factor: 2.33
Unique aggregates announced to Internet: 193509
Total ASes present in the Internet Routing Table: 38060
Prefixes per ASN: 10.31
Origin-only ASes present in the Internet Routing Table: 32787
Origin ASes announcing only one prefix: 15542
Transit ASes present in the Internet Routing Table: 5273
Transit-only ASes present in the Internet Routing Table: 132
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: 1133
Unregistered ASNs in the Routing Table: 196
Number of 32-bit ASNs allocated by the RIRs: 2294
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 4827
Special use prefixes present in the Routing Table: 8
Prefixes being announced from unallocated address space: 314
Number of addresses announced to Internet: 2539593216
Equivalent to 151 /8s, 95 /16s and 30 /24s
Percentage of available address space announced: 68.5
Percentage of allocated address space announced: 68.5
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 92.0
Total number of prefixes smaller than registry allocations: 165360
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 92790
Total APNIC prefixes after maximum aggregation: 30385
APNIC Deaggregation factor: 3.05
Prefixes being announced from the APNIC address blocks: 90121
Unique aggregates announced from the APNIC address blocks: 39257
APNIC Region origin ASes present in the Internet Routing Table: 4612
APNIC Prefixes per ASN: 19.54
APNIC Region origin ASes announcing only one prefix: 1252
APNIC Region transit ASes present in the Internet Routing Table: 701
Average APNIC Region AS path length visible: 4.0
Max APNIC Region AS path length visible: 18
Number of APNIC region 32-bit ASNs visible in the Routing Table: 0
Number of APNIC addresses announced to Internet: 639881472
Equivalent to 38 /8s, 35 /16s and 209 /24s
Percentage of available APNIC address space announced: 81.1
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 131072-132095, 132096-133119
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: 147222
Total ARIN prefixes after maximum aggregation: 74895
ARIN Deaggregation factor: 1.97
Prefixes being announced from the ARIN address blocks: 119291
Unique aggregates announced from the ARIN address blocks: 49615
ARIN Region origin ASes present in the Internet Routing Table: 14859
ARIN Prefixes per ASN: 8.03
ARIN Region origin ASes announcing only one prefix: 5674
ARIN Region transit ASes present in the Internet Routing Table: 1512
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 18
Number of ARIN region 32-bit ASNs visible in the Routing Table: 0
Number of ARIN addresses announced to Internet: 805489408
Equivalent to 48 /8s, 2 /16s and 203 /24s
Percentage of available ARIN address space announced: 64.0
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: 99937
Total RIPE prefixes after maximum aggregation: 52648
RIPE Deaggregation factor: 1.90
Prefixes being announced from the RIPE address blocks: 91615
Unique aggregates announced from the RIPE address blocks: 56714
RIPE Region origin ASes present in the Internet Routing Table: 16325
RIPE Prefixes per ASN: 5.61
RIPE Region origin ASes announcing only one prefix: 8014
RIPE Region transit ASes present in the Internet Routing Table: 2583
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 22
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 501243392
Equivalent to 29 /8s, 224 /16s and 94 /24s
Percentage of available RIPE address space announced: 80.7
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
196608-198655
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: 38121
Total LACNIC prefixes after maximum aggregation: 7987
LACNIC Deaggregation factor: 4.77
Prefixes being announced from the LACNIC address blocks: 37945
Unique aggregates announced from the LACNIC address blocks: 19576
LACNIC Region origin ASes present in the Internet Routing Table: 1564
LACNIC Prefixes per ASN: 24.26
LACNIC Region origin ASes announcing only one prefix: 443
LACNIC Region transit ASes present in the Internet Routing Table: 281
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 17
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 0
Number of LACNIC addresses announced to Internet: 97364480
Equivalent to 5 /8s, 205 /16s and 170 /24s
Percentage of available LACNIC address space announced: 64.5
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,
200/8, 201/8,
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 8719
Total AfriNIC prefixes after maximum aggregation: 2098
AfriNIC Deaggregation factor: 4.16
Prefixes being announced from the AfriNIC address blocks: 6757
Unique aggregates announced from the AfriNIC address blocks: 2123
AfriNIC Region origin ASes present in the Internet Routing Table: 509
AfriNIC Prefixes per ASN: 13.28
AfriNIC Region origin ASes announcing only one prefix: 159
AfriNIC Region transit ASes present in the Internet Routing Table: 118
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: 31357952
Equivalent to 1 /8s, 222 /16s and 124 /24s
Percentage of available AfriNIC address space announced: 46.7
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 1923 11104 679 Korea Telecom (KIX)
17974 1649 503 36 PT Telekomunikasi Indonesia
7545 1637 303 86 TPG Internet Pty Ltd
4755 1544 386 160 TATA Communications formerly
9829 1182 997 29 National Internet Backbone
9583 1129 84 483 Sify Limited
7552 1103 1062 11 Vietel Corporation
24560 1010 385 167 Bharti Airtel Ltd., Telemedia
4808 976 1946 278 CNCGROUP IP network China169
18101 950 130 155 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
7029 3449 1040 172 Windstream Communications Inc
6389 3433 3807 200 BellSouth.net Inc.
18566 2092 382 177 Covad Communications Co.
1785 1875 680 125 PaeTec Communications, Inc.
20115 1628 1551 630 Charter Communications
4323 1607 1075 382 tw telecom holdings, inc.
22773 1535 2910 110 Cox Communications Inc.
30036 1415 253 743 Mediacom Communications Corp
19262 1388 4703 398 Verizon Online LLC
7018 1308 6996 853 AT&T Services, 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 1684 480 15 Corbina telecom
2118 1398 97 13 EUnet/RELCOM Autonomous Syste
15557 1099 2184 60 NEUF CEGETEL (formerly LDCOM
34984 655 188 172 BILISIM TELEKOM
6830 644 1927 413 UPC Broadband
20940 619 202 480 Akamai Technologies European
12479 604 644 55 France Telecom Espana SA
8551 598 360 81 Bezeq International
9116 541 326 32 Goldenlines main autonomous s
31148 541 37 9 FreeNet ISP
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 1751 324 171 Types of queries are: POCs, o
28573 1681 1088 62 Types of queries are: POCs, o
8151 1340 2992 343 Uninet S.A. de C.V.
7303 1328 822 186 Telecom Argentina S.A.
26615 864 664 33 Tim Celular S.A.
27947 639 67 108 Telconet S.A
11172 634 107 73 Alestra, S. de R.L. de C.V.
22047 581 322 17 Types of queries are: POCs, o
6503 565 418 67 Axtel, S.A.B. de C.V.
3816 559 239 93 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 1253 958 13 TEDATA
24863 830 274 34 LINKdotNET AS number
6713 487 649 18 Itissalat Al-MAGHRIB
3741 277 923 228 The Internet Solution
15706 227 32 6 Sudatel Internet Exchange Aut
29571 214 17 12 Ci Telecom Autonomous system
12258 197 28 62 Vodacom Internet Company
24835 194 80 8 RAYA Telecom - Egypt
33776 182 12 20 Starcomms Nigeria Limited
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
7029 3449 1040 172 Windstream Communications Inc
6389 3433 3807 200 BellSouth.net Inc.
18566 2092 382 177 Covad Communications Co.
4766 1923 11104 679 Korea Telecom (KIX)
1785 1875 680 125 PaeTec Communications, Inc.
10620 1751 324 171 Types of queries are: POCs, o
8402 1684 480 15 Corbina telecom
28573 1681 1088 62 Types of queries are: POCs, o
17974 1649 503 36 PT Telekomunikasi Indonesia
7545 1637 303 86 TPG Internet Pty Ltd
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
6389 3433 3233 BellSouth.net Inc.
18566 2092 1915 Covad Communications Co.
1785 1875 1750 PaeTec Communications, Inc.
8402 1684 1669 Corbina telecom
28573 1681 1619 Types of queries are: POCs, o
17974 1649 1613 PT Telekomunikasi Indonesia
10620 1751 1580 Types of queries are: POCs, o
7545 1637 1551 TPG Internet Pty Ltd
22773 1535 1425 Cox Communications Inc.
2118 1398 1385 EUnet/RELCOM Autonomous Syste
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.
32567 UNALLOCATED 12.14.170.0/24 7018 AT&T Services, Inc.
16504 UNALLOCATED 12.18.155.0/24 30170 Optic Fusion
32567 UNALLOCATED 12.25.107.0/24 4323 tw telecom holdings,
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.
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
23.27.0.0/16 18779 Guru.com
27.112.114.0/24 23884 Proimage Engineering and Comm
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 /9:12 /10:28 /11:81 /12:233
/13:459 /14:814 /15:1470 /16:12107 /17:6195 /18:10323
/19:20505 /20:28302 /21:28970 /22:39334 /23:36814 /24:206131
/25:11 /26:21 /27:20 /28:153 /29:137 /30:66
/31:0 /32:141
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3086 3449 Windstream Communications Inc
6389 2106 3433 BellSouth.net Inc.
18566 2041 2092 Covad Communications Co.
8402 1663 1684 Corbina telecom
10620 1648 1751 Types of queries are: POCs, o
30036 1365 1415 Mediacom Communications Corp
11492 1122 1159 CABLE ONE, INC.
1785 1064 1875 PaeTec Communications, Inc.
8452 1061 1253 TEDATA
15557 1046 1099 NEUF CEGETEL (formerly LDCOM
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:508 2:680 4:14 6:3 8:389 12:1964
13:1 14:598 15:11 16:3 17:7 20:8
23:134 24:1731 27:1196 31:939 32:60 33:2
34:2 36:9 37:205 38:772 40:116 41:2969
42:113 44:3 46:1344 47:3 49:334 50:511
52:13 54:2 55:7 56:3 57:35 58:919
59:483 60:341 61:1088 62:962 63:2006 64:4100
65:2280 66:4457 67:2032 68:1173 69:3165 70:908
71:407 72:1792 74:2647 75:470 76:319 77:964
78:965 79:504 80:1221 81:877 82:634 83:527
84:588 85:1160 86:736 87:914 88:334 89:1565
90:282 91:4513 92:510 93:1353 94:1388 95:1103
96:417 97:311 98:821 99:38 100:4 101:153
103:819 106:65 107:162 108:176 109:1541 110:704
111:854 112:425 113:526 114:602 115:776 116:859
117:703 118:903 119:1248 120:363 121:661 122:1589
123:1080 124:1304 125:1320 128:502 129:182 130:211
131:588 132:163 133:21 134:224 135:62 136:212
137:180 138:268 139:144 140:466 141:260 142:376
143:408 144:512 145:69 146:480 147:240 148:714
149:299 150:156 151:198 152:446 153:171 154:6
155:415 156:207 157:337 158:164 159:441 160:320
161:227 162:339 163:178 164:527 165:394 166:558
167:457 168:758 169:147 170:838 171:118 172:4
173:1726 174:598 175:421 176:510 177:504 178:1280
180:1179 181:68 182:727 183:283 184:434 185:1
186:2030 187:858 188:1083 189:1201 190:5481 192:5946
193:5550 194:4342 195:3381 196:1256 197:165 198:3571
199:4371 200:5596 201:1735 202:8162 203:8556 204:4279
205:2421 206:2657 207:2720 208:4054 209:3526 210:2694
211:1449 212:2031 213:1839 214:829 215:99 216:4997
217:1501 218:535 219:330 220:1225 221:546 222:297
223:300
End of report