The Border Gateway Protocol (BGP) is the protocol backing the core routing decisions on the Internet. It maintains a table of IP networks or 'prefixes' which designate network reachability among autonomous systems (AS). It is described as a path vector protocol. BGP does not use traditional Interior Gateway Protocol (IGP) metrics, but makes routing decisions based on path, network policies and/or rulesets. For this reason, it is more appropriately termed a reachability protocol rather than routing protocol.

Thursday, November 14, 2013

[bgp-stats] Routing Table Report - Brisbane view

* BGP Routing Table Analysis Reports *
Routing Table Report 05:00 +10GMT Fri 15 Nov, 2013

Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/au/

Analysis Summary
----------------

BGP routing table entries examined: 469893
Prefixes after maximum aggregation: 188038
Deaggregation factor: 2.50
Unique aggregates announced to Internet: 234245
Total ASes present in the Internet Routing Table: 45339
Prefixes per ASN: 10.36
Origin-only ASes present in the Internet Routing Table: 35438
Origin ASes announcing only one prefix: 16308
Transit ASes present in the Internet Routing Table: 5752
Transit-only ASes present in the Internet Routing Table: 146
Average AS path length visible in the Internet Routing Table: 4.8
Max AS path length visible: 30
Max AS path prepend of ASN ( 59482) 25
Prefixes from unregistered ASNs in the Routing Table: 7265
Unregistered ASNs in the Routing Table: 575
Number of 32-bit ASNs allocated by the RIRs: 5348
Number of 32-bit ASNs visible in the Routing Table: 4149
Prefixes from 32-bit ASNs in the Routing Table: 12914
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 1073
Number of addresses announced to Internet: 2654094140
Equivalent to 158 /8s, 50 /16s and 67 /24s
Percentage of available address space announced: 71.7
Percentage of allocated address space announced: 71.7
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 95.2
Total number of prefixes smaller than registry allocations: 164214

APNIC Region Analysis Summary
-----------------------------

Prefixes being announced by APNIC Region ASes: 109540
Total APNIC prefixes after maximum aggregation: 33300
APNIC Deaggregation factor: 3.29
Prefixes being announced from the APNIC address blocks: 111751
Unique aggregates announced from the APNIC address blocks: 47494
APNIC Region origin ASes present in the Internet Routing Table: 4848
APNIC Prefixes per ASN: 23.05
APNIC Region origin ASes announcing only one prefix: 1235
APNIC Region transit ASes present in the Internet Routing Table: 813
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 29
Number of APNIC region 32-bit ASNs visible in the Routing Table: 740
Number of APNIC addresses announced to Internet: 729681212
Equivalent to 43 /8s, 126 /16s and 13 /24s
Percentage of available APNIC address space announced: 85.3

APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 63488-63999, 131072-133631
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: 161834
Total ARIN prefixes after maximum aggregation: 81273
ARIN Deaggregation factor: 1.99
Prefixes being announced from the ARIN address blocks: 162716
Unique aggregates announced from the ARIN address blocks: 76019
ARIN Region origin ASes present in the Internet Routing Table: 15872
ARIN Prefixes per ASN: 10.25
ARIN Region origin ASes announcing only one prefix: 6007
ARIN Region transit ASes present in the Internet Routing Table: 1614
Average ARIN Region AS path length visible: 4.6
Max ARIN Region AS path length visible: 23
Number of ARIN region 32-bit ASNs visible in the Routing Table: 34
Number of ARIN addresses announced to Internet: 1073178368
Equivalent to 63 /8s, 247 /16s and 103 /24s
Percentage of available ARIN address space announced: 56.8

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: 120670
Total RIPE prefixes after maximum aggregation: 60915
RIPE Deaggregation factor: 1.98
Prefixes being announced from the RIPE address blocks: 124350
Unique aggregates announced from the RIPE address blocks: 78792
RIPE Region origin ASes present in the Internet Routing Table: 17500
RIPE Prefixes per ASN: 7.11
RIPE Region origin ASes announcing only one prefix: 8306
RIPE Region transit ASes present in the Internet Routing Table: 2749
Average RIPE Region AS path length visible: 5.2
Max RIPE Region AS path length visible: 30
Number of RIPE region 32-bit ASNs visible in the Routing Table: 2476
Number of RIPE addresses announced to Internet: 656678400
Equivalent to 39 /8s, 36 /16s and 30 /24s
Percentage of available RIPE address space announced: 95.5

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, 61952-62463, 196608-200191
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: 52469
Total LACNIC prefixes after maximum aggregation: 9791
LACNIC Deaggregation factor: 5.36
Prefixes being announced from the LACNIC address blocks: 57603
Unique aggregates announced from the LACNIC address blocks: 26992
LACNIC Region origin ASes present in the Internet Routing Table: 2035
LACNIC Prefixes per ASN: 28.31
LACNIC Region origin ASes announcing only one prefix: 557
LACNIC Region transit ASes present in the Internet Routing Table: 386
Average LACNIC Region AS path length visible: 5.4
Max LACNIC Region AS path length visible: 29
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 893
Number of LACNIC addresses announced to Internet: 142786816
Equivalent to 8 /8s, 130 /16s and 193 /24s
Percentage of available LACNIC address space announced: 85.1

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: 11772
Total AfriNIC prefixes after maximum aggregation: 2609
AfriNIC Deaggregation factor: 4.51
Prefixes being announced from the AfriNIC address blocks: 12400
Unique aggregates announced from the AfriNIC address blocks: 4087
AfriNIC Region origin ASes present in the Internet Routing Table: 685
AfriNIC Prefixes per ASN: 18.10
AfriNIC Region origin ASes announcing only one prefix: 203
AfriNIC Region transit ASes present in the Internet Routing Table: 132
Average AfriNIC Region AS path length visible: 5.0
Max AfriNIC Region AS path length visible: 25
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 6
Number of AfriNIC addresses announced to Internet: 48052480
Equivalent to 2 /8s, 221 /16s and 57 /24s
Percentage of available AfriNIC address space announced: 47.7

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 2712 903 89 PT TELEKOMUNIKASI INDONESIA
4766 2136 11550 641 Korea Telecom (KIX)
7545 2105 319 110 TPG Internet Pty Ltd
4755 1789 392 190 TATA Communications formerly
9829 1544 1245 45 BSNL National Internet Backbo
9583 1242 94 508 Sify Limited
9498 1212 309 74 BHARTI Airtel Ltd.
7552 1162 1080 13 Vietel Corporation
24560 1096 380 163 Bharti Airtel Ltd., Telemedia
4808 1043 1950 302 CNCGROUP IP network: China169

Complete listing at http://thyme.rand.apnic.net/au/data-ASnet-APNIC

ARIN Region per AS prefix count summary
---------------------------------------

ASN No of nets /20 equiv MaxAgg Description
6389 3052 3688 56 BellSouth.net Inc.
22773 2200 2939 139 Cox Communications, Inc.
18566 2056 379 178 MegaPath Corporation
1785 2039 685 130 PaeTec Communications, Inc.
20115 1680 1653 607 Charter Communications
4323 1647 1114 419 Time Warner Telecom
701 1503 11146 781 MCI Communications Services,
30036 1382 311 583 Mediacom Communications Corp
7018 1332 17778 871 AT&T WorldNet Services
6983 1293 755 578 ITC^Deltacom

Complete listing at http://thyme.rand.apnic.net/au/data-ASnet-ARIN

RIPE Region per AS prefix count summary
---------------------------------------

ASN No of nets /20 equiv MaxAgg Description
8402 1943 544 17 OJSC "Vimpelcom"
3352 1885 2396 44 Ibernet, Internet Access Netw
34984 1363 244 223 TELLCOM ILETISIM HIZMETLERI A
20940 1139 420 861 Akamai Technologies European
31148 1005 45 19 FreeNet ISP
13188 894 99 48 TOV "Bank-Inform"
6849 861 356 30 JSC UKRTELECOM,
8551 786 370 41 Bezeq International
6830 778 2329 430 UPC Distribution Services
12479 680 798 55 Uni2 Autonomous System

Complete listing at http://thyme.rand.apnic.net/au/data-ASnet-RIPE

LACNIC Region per AS prefix count summary
-----------------------------------------

ASN No of nets /20 equiv MaxAgg Description
28573 3420 1793 87 NET Servicos de Comunicao S.A
10620 2652 430 226 >>UNKNOWN<<
7303 1728 1150 231 Telecom Argentina Stet-France
18881 1560 908 20 Global Village Telecom
8151 1346 2851 409 UniNet S.A. de C.V.
11830 866 364 15 Instituto Costarricense de El
27947 820 94 92 Telconet S.A
6147 814 373 27 Telefonica Del Peru
6503 789 434 63 AVANTEL, S.A.
7738 780 1498 36 Telecomunicacoes da Bahia S.A

Complete listing at http://thyme.rand.apnic.net/au/data-ASnet-LACNIC

AfriNIC Region per AS prefix count summary
------------------------------------------

ASN No of nets /20 equiv MaxAgg Description
36998 1864 112 5 Sudanese Mobile Telephone (ZA
24863 886 338 26 LINKdotNET AS number
6713 554 633 26 Itissalat Al-MAGHRIB
8452 418 956 9 TEDATA
24835 297 144 9 RAYA Telecom - Egypt
3741 256 921 214 The Internet Solution
36992 229 501 29 Etisalat MISR
29571 224 17 12 Ci Telecom Autonomous system
15706 221 32 6 Sudatel Internet Exchange Aut
29975 192 668 21 Vodacom

Complete listing at http://thyme.rand.apnic.net/au/data-ASnet-AFRINIC

Global Per AS prefix count summary
----------------------------------

ASN No of nets /20 equiv MaxAgg Description
28573 3420 1793 87 NET Servicos de Comunicao S.A
6389 3052 3688 56 BellSouth.net Inc.
17974 2712 903 89 PT TELEKOMUNIKASI INDONESIA
10620 2652 430 226 >>UNKNOWN<<
22773 2200 2939 139 Cox Communications, Inc.
4766 2136 11550 641 Korea Telecom (KIX)
7545 2105 319 110 TPG Internet Pty Ltd
18566 2056 379 178 MegaPath Corporation
1785 2039 685 130 PaeTec Communications, Inc.
8402 1943 544 17 OJSC "Vimpelcom"

Complete listing at http://thyme.rand.apnic.net/au/data-ASnet

Global Per AS Maximum Aggr summary
----------------------------------

ASN No of nets Net Savings Description
6389 3052 2996 BellSouth.net Inc.
17974 2712 2623 PT TELEKOMUNIKASI INDONESIA
10620 2652 2426 >>UNKNOWN<<
22773 2200 2061 Cox Communications, Inc.
7545 2105 1995 TPG Internet Pty Ltd
8402 1943 1926 OJSC "Vimpelcom"
1785 2039 1909 PaeTec Communications, Inc.
18566 2056 1878 MegaPath Corporation
36998 1864 1859 Sudanese Mobile Telephone (ZA
3352 1885 1841 Ibernet, Internet Access Netw

Complete listing at http://thyme.rand.apnic.net/au/data-CIDRnet

List of Unregistered Origin ASNs (Global)
-----------------------------------------

Bad AS Designation Network Transit AS Description
65010 PRIVATE 1.38.8.0/24 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.9.0/24 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.11.0/24 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.32.0/19 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.160.0/19 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.192.0/20 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.224.0/20 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.240.0/21 38266 Hutchison Essar Ltd.
65514 PRIVATE 5.102.224.0/19 47956 XFONE COMMUNICATION
62828 UNALLOCATED 8.21.130.0/24 4323 Time Warner Telecom

Complete listing at http://thyme.rand.apnic.net/au/data-badAS

Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------

Prefix Origin AS Description
100.100.0.0/24 4847 China Networks Inter-Exchange

Complete listing at http://thyme.rand.apnic.net/au/data-dsua

Advertised Unallocated Addresses
--------------------------------

Network Origin AS Description
23.90.128.0/18 27418 OUTOFWALL INC.
23.90.192.0/18 3257 Tiscali Intl Network
23.91.0.0/19 40676 Psychz Networks
23.91.4.0/24 40676 Psychz Networks
23.91.14.0/24 40676 Psychz Networks
23.91.32.0/19 36315 Servpac Inc.
23.91.80.0/20 21560 Capital Technology Services G
23.91.96.0/20 37958 ChinaCache Networks ASN
23.91.112.0/21 32475 MidPhase Inc.
23.91.160.0/19 36493 3757277 Canada Inc. (oa 295.c

Complete listing at http://thyme.rand.apnic.net/au/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 /8:16 /9:11 /10:31 /11:92 /12:253
/13:474 /14:925 /15:1631 /16:12841 /17:6736 /18:11179
/19:23015 /20:32767 /21:35732 /22:50094 /23:44277 /24:249593
/25:44 /26:34 /27:51 /28:37 /29:29 /30:31
/31:0 /32:0

Advertised prefixes smaller than registry allocations
-----------------------------------------------------

ASN No of nets Total ann. Description
18566 2010 2056 MegaPath Corporation
36998 1829 1864 Sudanese Mobile Telephone (ZA
6389 1705 3052 BellSouth.net Inc.
8402 1607 1943 OJSC "Vimpelcom"
3352 1477 1885 Ibernet, Internet Access Netw
22773 1459 2200 Cox Communications, Inc.
30036 1228 1382 Mediacom Communications Corp
11492 1191 1229 Cable One
1785 1086 2039 PaeTec Communications, Inc.
6983 1034 1293 ITC^Deltacom

Complete listing at http://thyme.rand.apnic.net/au/data-sXXas-nos

Number of /24s announced per /8 block (Global)
----------------------------------------------

1:898 2:851 3:3 4:17 5:1025 6:21
8:616 12:1893 13:3 14:876 15:11 16:3
17:17 18:19 20:21 23:559 24:1737 27:1655
31:1437 32:44 33:2 34:5 36:86 37:1919
38:914 39:5 40:182 41:3268 42:271 44:14
46:2016 47:10 49:690 50:835 52:12 54:43
55:6 56:4 57:26 58:1108 59:574 60:376
61:1454 62:1239 63:1979 64:4340 65:2341 66:4147
67:2114 68:1108 69:3299 70:874 71:488 72:2041
74:2554 75:326 76:307 77:1162 78:1057 79:676
80:1642 81:1148 82:652 83:674 84:585 85:1256
86:382 87:1013 88:623 89:1562 90:150 91:5651
92:625 93:1605 94:2038 95:1632 96:512 97:350
98:1038 99:41 100:32 101:391 103:3589 105:527
106:141 107:217 108:533 109:1945 110:971 111:1111
112:587 113:809 114:740 115:1041 116:1011 117:807
118:1179 119:1268 120:364 121:751 122:1839 123:1266
124:1364 125:1462 128:648 129:219 130:315 131:654
132:359 133:158 134:548 135:72 136:282 137:245
138:351 139:174 140:170 141:331 142:531 143:424
144:498 145:90 146:518 147:403 148:711 149:367
150:136 151:653 152:411 153:206 154:53 155:504
156:292 157:369 158:280 159:694 160:363 161:456
162:848 163:202 164:631 165:582 166:261 167:634
168:1037 169:124 170:1117 171:185 172:27 173:1594
174:688 175:515 176:1299 177:2484 178:1975 179:289
180:1612 181:869 182:1380 183:464 184:666 185:1016
186:2598 187:1472 188:1852 189:1260 190:7282 192:6978
193:5418 194:4042 195:3371 196:1342 197:1045 198:4706
199:5440 200:6054 201:2516 202:8890 203:8947 204:4470
205:2632 206:2748 207:2766 208:4006 209:3644 210:2947
211:1563 212:2171 213:1979 214:901 215:91 216:5418
217:1692 218:626 219:318 220:1274 221:578 222:327
223:543

End of report
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