Routing Table Report 08:00 +10GMT Sun 04 Mar, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 392925
Prefixes after maximum aggregation: 168482
Deaggregation factor: 2.33
Unique aggregates announced to Internet: 194096
Total ASes present in the Internet Routing Table: 38078
Prefixes per ASN: 10.32
Origin-only ASes present in the Internet Routing Table: 32819
Origin ASes announcing only one prefix: 15523
Transit ASes present in the Internet Routing Table: 5259
Transit-only ASes present in the Internet Routing Table: 129
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: 1146
Unregistered ASNs in the Routing Table: 205
Number of 32-bit ASNs allocated by the RIRs: 2307
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 4866
Special use prefixes present in the Routing Table: 8
Prefixes being announced from unallocated address space: 440
Number of addresses announced to Internet: 2541473536
Equivalent to 151 /8s, 123 /16s and 207 /24s
Percentage of available address space announced: 68.6
Percentage of allocated address space announced: 68.6
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: 165601
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 92770
Total APNIC prefixes after maximum aggregation: 30526
APNIC Deaggregation factor: 3.04
Prefixes being announced from the APNIC address blocks: 90127
Unique aggregates announced from the APNIC address blocks: 39446
APNIC Region origin ASes present in the Internet Routing Table: 4613
APNIC Prefixes per ASN: 19.54
APNIC Region origin ASes announcing only one prefix: 1256
APNIC Region transit ASes present in the Internet Routing Table: 701
Average APNIC Region AS path length visible: 4.1
Max APNIC Region AS path length visible: 16
Number of APNIC region 32-bit ASNs visible in the Routing Table: 0
Number of APNIC addresses announced to Internet: 640972288
Equivalent to 38 /8s, 52 /16s and 118 /24s
Percentage of available APNIC address space announced: 81.3
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: 147327
Total ARIN prefixes after maximum aggregation: 75056
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 119262
Unique aggregates announced from the ARIN address blocks: 49690
ARIN Region origin ASes present in the Internet Routing Table: 14860
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: 1511
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 16
Number of ARIN region 32-bit ASNs visible in the Routing Table: 0
Number of ARIN addresses announced to Internet: 805485824
Equivalent to 48 /8s, 2 /16s and 189 /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: 100204
Total RIPE prefixes after maximum aggregation: 52747
RIPE Deaggregation factor: 1.90
Prefixes being announced from the RIPE address blocks: 91765
Unique aggregates announced from the RIPE address blocks: 56758
RIPE Region origin ASes present in the Internet Routing Table: 16330
RIPE Prefixes per ASN: 5.62
RIPE Region origin ASes announcing only one prefix: 7993
RIPE Region transit ASes present in the Internet Routing Table: 2574
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: 501336576
Equivalent to 29 /8s, 225 /16s and 202 /24s
Percentage of available RIPE address space announced: 80.8
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: 38270
Total LACNIC prefixes after maximum aggregation: 7973
LACNIC Deaggregation factor: 4.80
Prefixes being announced from the LACNIC address blocks: 38134
Unique aggregates announced from the LACNIC address blocks: 19661
LACNIC Region origin ASes present in the Internet Routing Table: 1562
LACNIC Prefixes per ASN: 24.41
LACNIC Region origin ASes announcing only one prefix: 437
LACNIC Region transit ASes present in the Internet Routing Table: 276
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: 97883136
Equivalent to 5 /8s, 213 /16s and 148 /24s
Percentage of available LACNIC address space announced: 64.8
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: 8752
Total AfriNIC prefixes after maximum aggregation: 2073
AfriNIC Deaggregation factor: 4.22
Prefixes being announced from the AfriNIC address blocks: 6794
Unique aggregates announced from the AfriNIC address blocks: 2123
AfriNIC Region origin ASes present in the Internet Routing Table: 514
AfriNIC Prefixes per ASN: 13.22
AfriNIC Region origin ASes announcing only one prefix: 163
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: 31550976
Equivalent to 1 /8s, 225 /16s and 110 /24s
Percentage of available AfriNIC address space announced: 47.0
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 1925 11104 676 Korea Telecom (KIX)
17974 1654 503 37 PT Telekomunikasi Indonesia
7545 1644 303 89 TPG Internet Pty Ltd
4755 1541 385 157 TATA Communications formerly
9583 1199 91 509 Sify Limited
9829 1178 997 29 National Internet Backbone
7552 1104 1062 11 Vietel Corporation
24560 1008 380 173 Bharti Airtel Ltd., Telemedia
4808 978 1946 278 CNCGROUP IP network China169
18101 951 131 156 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 3448 1040 172 Windstream Communications Inc
6389 3420 3807 199 BellSouth.net Inc.
18566 2091 382 177 Covad Communications Co.
1785 1878 679 125 PaeTec Communications, Inc.
20115 1630 1550 632 Charter Communications
4323 1607 1075 382 tw telecom holdings, inc.
22773 1537 2910 110 Cox Communications Inc.
30036 1407 253 741 Mediacom Communications Corp
19262 1388 4703 398 Verizon Online LLC
7018 1290 6995 848 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 1703 544 16 Corbina telecom
2118 1421 97 13 EUnet/RELCOM Autonomous Syste
15557 1088 2184 60 NEUF CEGETEL (formerly LDCOM
34984 656 188 170 BILISIM TELEKOM
6830 642 1927 413 UPC Broadband
20940 622 202 482 Akamai Technologies European
12479 606 644 55 France Telecom Espana SA
8551 599 360 81 Bezeq International
9116 541 326 32 Goldenlines main autonomous s
31148 540 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 1759 325 169 Types of queries are: POCs, o
28573 1686 1089 60 Types of queries are: POCs, o
8151 1342 2993 339 Uninet S.A. de C.V.
7303 1328 822 186 Telecom Argentina S.A.
26615 870 664 33 Tim Celular S.A.
27947 651 68 107 Telconet S.A
11172 636 107 73 Alestra, S. de R.L. de C.V.
22047 581 322 17 Types of queries are: POCs, o
3816 564 240 89 Types of queries are: POCs, o
6503 562 418 67 Axtel, S.A.B. de C.V.
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 1248 958 13 TEDATA
24863 831 274 34 LINKdotNET AS number
6713 491 649 18 Itissalat Al-MAGHRIB
3741 277 923 228 The Internet Solution
15706 227 32 6 Sudatel Internet Exchange Aut
29571 211 16 10 Ci Telecom Autonomous system
12258 197 28 62 Vodacom Internet Company
24835 194 80 8 RAYA Telecom - Egypt
33776 168 12 19 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 3448 1040 172 Windstream Communications Inc
6389 3420 3807 199 BellSouth.net Inc.
18566 2091 382 177 Covad Communications Co.
4766 1925 11104 676 Korea Telecom (KIX)
1785 1878 679 125 PaeTec Communications, Inc.
10620 1759 325 169 Types of queries are: POCs, o
8402 1703 544 16 Corbina telecom
28573 1686 1089 60 Types of queries are: POCs, o
17974 1654 503 37 PT Telekomunikasi Indonesia
7545 1644 303 89 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 3420 3221 BellSouth.net Inc.
18566 2091 1914 Covad Communications Co.
1785 1878 1753 PaeTec Communications, Inc.
8402 1703 1687 Corbina telecom
28573 1686 1626 Types of queries are: POCs, o
17974 1654 1617 PT Telekomunikasi Indonesia
10620 1759 1590 Types of queries are: POCs, o
7545 1644 1555 TPG Internet Pty Ltd
22773 1537 1427 Cox Communications Inc.
2118 1421 1408 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
23.27.0.0/20 18779 Guru.com
23.27.0.0/16 18779 Guru.com
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 /12:234
/13:458 /14:815 /15:1473 /16:12117 /17:6203 /18:10343
/19:20466 /20:28356 /21:28997 /22:39357 /23:36810 /24:206615
/25:11 /26:20 /27:20 /28:153 /29:136 /30:65
/31:0 /32:135
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3086 3448 Windstream Communications Inc
6389 2104 3420 BellSouth.net Inc.
18566 2040 2091 Covad Communications Co.
8402 1681 1703 Corbina telecom
10620 1656 1759 Types of queries are: POCs, o
30036 1357 1407 Mediacom Communications Corp
11492 1124 1161 CABLE ONE, INC.
1785 1064 1878 PaeTec Communications, Inc.
8452 1058 1248 TEDATA
7011 1038 1154 Frontier Communications of Am
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:520 2:678 4:14 6:3 8:391 12:1960
13:1 14:600 15:11 16:3 17:7 20:8
23:136 24:1733 27:1204 31:981 32:60 33:2
34:2 36:9 37:218 38:774 40:116 41:2982
42:120 44:3 46:1383 47:3 49:334 50:511
52:13 54:5 55:9 56:3 57:36 58:927
59:486 60:284 61:1088 62:975 63:2004 64:4091
65:2280 66:4453 67:2037 68:1165 69:3154 70:908
71:409 72:1790 74:2644 75:470 76:320 77:972
78:968 79:477 80:1206 81:886 82:630 83:531
84:587 85:1163 86:737 87:914 88:334 89:1567
90:284 91:4537 92:511 93:1381 94:1369 95:1110
96:416 97:314 98:824 99:38 100:5 101:151
103:850 106:63 107:167 108:180 109:1527 110:718
111:865 112:425 113:528 114:599 115:783 116:858
117:703 118:903 119:1245 120:362 121:702 122:1580
123:1064 124:1302 125:1316 128:505 129:183 130:258
131:588 132:162 133:21 134:224 135:61 136:210
137:181 138:271 139:142 140:464 141:265 142:374
143:412 144:508 145:69 146:479 147:242 148:704
149:299 150:153 151:198 152:446 153:171 154:6
155:393 156:210 157:338 158:162 159:445 160:318
161:227 162:340 163:177 164:526 165:396 166:559
167:458 168:804 169:147 170:839 171:119 172:4
173:1709 174:598 175:415 176:527 177:527 178:1282
180:1184 181:68 182:740 183:285 184:436 185:1
186:2059 187:858 188:1060 189:1201 190:5512 192:5945
193:5579 194:4354 195:3404 196:1273 197:167 198:3579
199:4385 200:5624 201:1744 202:8161 203:8578 204:4269
205:2425 206:2652 207:2725 208:4046 209:3539 210:2685
211:1451 212:1999 213:1878 214:829 215:99 216:4995
217:1513 218:532 219:321 220:1226 221:548 222:295
223:305
End of report